CN108565960A - A kind of DTU distribution terminals super capacitor backup power system - Google Patents
- ️Fri Sep 21 2018
CN108565960A - A kind of DTU distribution terminals super capacitor backup power system - Google Patents
A kind of DTU distribution terminals super capacitor backup power system Download PDFInfo
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- CN108565960A CN108565960A CN201810483786.5A CN201810483786A CN108565960A CN 108565960 A CN108565960 A CN 108565960A CN 201810483786 A CN201810483786 A CN 201810483786A CN 108565960 A CN108565960 A CN 108565960A Authority
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- China Prior art keywords
- power
- super capacitor
- backup power
- power system
- dtu Prior art date
- 2018-05-19 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003990 capacitor Substances 0.000 title claims abstract description 120
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims abstract description 3
- 230000002159 abnormal effect Effects 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 11
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000004927 fusion Effects 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 17
- 239000002253 acid Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of DTU distribution terminals super capacitor backup power systems, by the total capacity for reducing super capacitor module needed for backup power system, optimize the power configuration of power management module needed for backup power system simultaneously, the fully cost of reduction super capacitor backup power system, promotes the reliability and stability of existing DTU distribution terminals backup power system.Management of charging and discharging unit comprising modules status information of the present invention can real-time report, it can continue tracking system internal electric source module operating status, it is safeguarded for backup power system and maintenance provides great convenience, in Alternating Current Power Supply status information and super capacitor module state information fusion to power module, DTU distribution terminals are only communicated with each power module in backup power system, backup power system working condition is controllable, fault distinguishing is simple, low cost, ultracapacitor intrinsic advantage can be given full play to, simpler province is provided for DTU distribution terminals and strong backup power supply guarantee.
Description
Technical field
After a kind of distribution terminal backup power system more particularly to a kind of DTU distribution terminals super capacitor Stand-by power source system.
Background technology
DTU distribution terminals are the key equipments of intelligent power distribution link, its operation conditions is directly related to multifarious user's Electricity consumption is experienced, and the operation security of entire distribution network is more related to.Distribution line break down or the situation of dead electricity under, can The DTU distribution terminal backup power supplies leaned on are particularly important.
Most current DTU distribution terminals are all made of lead-acid accumulator as backup power supply, however the practical work of lead-acid accumulator It is unsatisfactory to make the service life, it is also necessary to be equipped with professional technician and carry out regular specific aim maintenance, be brought greatly to maintenance work It is inconvenient.More seriously, over time, lead-acid accumulator characteristic attenuation is notable, and discharge capability is had a greatly reduced quality, Cause the action of partial high pressure Operation switch not in place or stuck under power failure state, failure row could be completed by needing to take considerable time It looks into and service work, this has obviously violated the original intention of power distribution automation transformation.Especially in the vast severe cold area in the north, by plumbic acid The poor influence of accumulator itself low temp power characteristic, this problem are more prominent.
Based on the above problem of lead-acid accumulator backup power supply, has part of the manufacturer and ultracapacitor is used to be grasped as high pressure Make to switch special backup power supply, be used cooperatively with lead-acid accumulator, but this can not still make up lead-acid accumulator backup power supply completely Deficiency.If substituting lead-acid accumulator completely using ultracapacitor, under same preparation time, super capacitor backup power supply System itself cost is obviously higher.For this purpose, although ultracapacitor advantage is notable, do not obtain slowly popularizing application in an all-round way.Cause This, needs to design a kind of overall cost that can reduce DTU distribution terminal super capacitor backup power systems, gives full play to super electricity Container intrinsic advantage, the system for providing simpler province and strong backup power supply guarantee for DTU distribution terminals.
Invention content
In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of low costs, can fully send out Ultracapacitor intrinsic advantage is waved, the DTU distribution terminals of simpler province and strong backup power supply guarantee are provided for DTU distribution terminals Super capacitor backup power system.
In order to achieve the above objectives, the technology used in the present invention means are：A kind of DTU distribution terminals super capacitor standby electricity Source system by reducing the total capacity of super capacitor module needed for backup power system, while optimizing needed for backup power system The power configuration of power management module fully reduces the cost of super capacitor backup power system, promotes existing DTU distribution terminals The reliability and stability of backup power system.
Further, described to reduce the total capacity of super capacitor module needed for backup power system, while optimizing standby electricity The power configuration of power management module needed for the system of source refers to：On the one hand, the friendship of backup power system and DTU core cells is realized Mutually, the output power of backup power system, and then management and control backup power supply are managed according to itself working condition by DTU distribution terminals The power consumption of system；On the other hand, it to be configured by rational power-supply system, promote the energy utilization of super capacitor module itself Rate, and reduce the power consumption of backup power system itself.
Further, the DTU distribution terminals super capacitor backup power system includes super capacitor module, charge and discharge Administrative unit and electrolytic capacitor group three parts, wherein management of charging and discharging unit by exchange AC/DC power supplys, operation DC/DC power supplys and Control DC/DC power supplys collectively form, and exchange AC/DC power supplys share two-way output, and two-way output is mutually isolated, when exchange is online When, give each module for power supply inside DTU distribution terminals, another way then super capacitor module to be given to charge all the way, meanwhile, exchange AC/DC Power supply has oneself state signal output function, and output state information is input AC working condition, output loop I work shapes State and output loop II working conditions monitor exchange AC/DC by output state information in real time for DTU distribution terminals core cell The working condition of power supply.
Further, the exchange AC/DC power supplys support external control signal switching function, pass through DTU distribution terminals Arbitrary circuit is opened and disconnected to control signal.
Further, the operation DC/DC power supplys support high-power high voltage switching manipulation load, have 48V/8A pulses Current output capability, and pulse electric current duration is not less than 15S；Have oneself state signal output function, while supporting to stop Dormancy operating mode；When DTU distribution terminals are not necessarily to switching manipulation, operation DC/DC power supplys are chronically at super low-power consumption suspend mode work Pattern；When DTU distribution terminals need to execute switching manipulation, DTU distribution terminal inner core units, which are sent, wakes up instruction, operates DC/ DC power supply jumps out suspend mode operating mode immediately after receiving the instruction, waits for being transferred to suspend mode Working mould automatically after the completion of switching manipulation Formula.
Further, the control DC/DC power supplys use high efficiency wide input range dual-output power supply module, wherein one Road is used for each module for power supply inside DTU distribution terminals, and another way then charges to electrolytic capacitor group；Control DC/DC power supplys have Oneself state signal output function, while supporting external control signal remote switch function, it is defeated by core cell controller two-way Any one way switch in going out.
Further, the electrolytic capacitor group forms for several long-life Low ESR type electrolytic capacitors, is connected in parallel on behaviour Make DC/DC power output ends, exchange under power failure state, when operation with high pressure switch is failure to actuate, by controlling DC/DC electric power loops To electrolytic capacitor group quick charge, and electrolytic capacitor group leakage current is compensated, electrolytic capacitor group voltage is made to be maintained at operating voltage； During operation with high pressure switch motion instruction issuing to operation DC/DC power initiations, preferentially by electrolytic capacitor group to operation Power supply is switched, with reserved enough operation DC/DC power on time, prevents operation DC/DC Power supply belt heavy load startings from failing, certainly Protection directly damages.
Further, two kinds of operating modes of the DTU distribution terminals super capacitor backup power system, one, when exchange supply When electricity is normal, whether DTU distribution terminals are normally carried out control operation according to exchange AC/DC power supplys output loop, as exchange AC/DC When power supply output loop state is normal, while judging whether the state for operating DC/DC power supplys with controlling DC/DC power supplys is normal, control DC/DC power supply status processed normally then exports shutdown, and abnormal then fault warning operates the normally then suspend mode of DC/DC power supply status, no Normal then fault warning；When exchange AC/DC power supply output loop states are abnormal, judge that main current supply circuit and super capacitor fill Whether electrical circuit is abnormal, the fault warning if main current supply circuit is abnormal, while judging whether super capacitor module state is normal, such as Normal then open stand-by power supply circuit and make operation DC/DC power supply suspend mode, abnormal then super capacitor module fault warning is such as super Grade capacitor charging circuit then judges whether super capacitor module state is normal extremely, the super capacitor charge circuit failure if normal Alarm, abnormal then super capacitor module fault warning；Two, when Alternating Current Power Supply exception, first determine whether exchange whether power down, no Power down then judges whether exchange is under-voltage, not under-voltage, judges whether main current supply circuit is normal, no normally then by main for loop power supply Then AC dump or AC undervoltage or main current supply circuit is abnormal goes to judge whether super capacitor module is normal, it is abnormal, surpass Grade electric capacity module fault warning, just whether normally then stand-by power supply current supply circuit is fully open, judge stand-by power supply current supply circuit Often, it is normally then powered by stand-by power supply current supply circuit, abnormal then stand-by power supply current supply circuit fault warning judges electrolytic capacitor Whether group charge circuit is normal, and normally then electrolytic capacitor group charges, abnormal then electrolytic capacitor group charge circuit fault warning, surpasses Grade electric capacity module also sends out operation with high pressure switch motion instruction when normal, operation with high pressure switch motion operates DC/DC power initiations Work operates DC/DC power supply suspend mode if operation with high pressure switch motion is completed after being then delayed, and otherwise judges operation DC/DC power supply works Whether work is normal, abnormal, operates the alarm of DC/DC power failures.
The beneficial effects of the invention are as follows：1, since management of charging and discharging unit comprising modules are exchange AC/DC power supplys, control DC/DC power supplys and operation DC/DC power supplys, status information can real-time report, each power module status information is accurate to inside Each output loop is conducive to continue tracking system internal electric source module operating status, safeguards and examine for later stage backup power system It repaiies and provides great convenience.
2, in Alternating Current Power Supply status information and super capacitor module state information fusion to power module, DTU distribution terminals Only communicated with each power module in backup power system.In actual application, each power module can be concentrated in system Place a cabinet in or cabinet a certain layer, facilitate the communication harness between backup power system and DTU core cells to arrange. It realizes that power is electrically separated in addition, also helping, input AC and super capacitor module sampled signal is avoided to be sent directly into DTU cores Unit is handled, but is uploaded to DTU cores again after first forceful electric power sampled signal is converted and handled inside power module Heart unit mitigates DTU core cells additionally increased task amount as possible.
3, backup power system working condition is controllable.Internal system management of charging and discharging unit, which respectively forms power module, can lead to It crosses DTU core cells control instruction and opens and disconnect output loop, realize the dynamic control of working state of system.Pass through system Working state control, on the one hand, can shielding system internal fault electric power loop in time, prevent internal system failure propagation；Separately On the one hand, system operation power consumption can be effectively reduced, it, can be by suspend mode and low especially during super capacitor module backup Two kinds of operating modes of power consumption, dynamic management system power consumption, and then extend the super capacitor module backup time.
4, backup power system fault distinguishing is simple.Due to the failure of each power module of internal system management of charging and discharging unit Information can be accurate to specific circuit, can more precisely positioning system failure, system fault diagnosis and investigation is rapidly completed. On the basis of this, it can also be counted according to longtime running failure rate, it has further been found that it is insufficient present in system design, it is standby electricity Source systems stay optimization provides data and supports.
Description of the drawings
The invention will be further elaborated with reference to the accompanying drawings and examples.
Fig. 1 is DTU distribution terminals super capacitor backup power system principle schematic of the present invention；
Fig. 2 is working-flow figure when Alternating Current Power Supply of the present invention is normal；
Working-flow figure when Fig. 3 is alternate current operation exception of the present invention.
Specific implementation mode
Embodiment 1
A kind of DTU distribution terminals super capacitor backup power system, by reducing super capacitor module needed for backup power system Total capacity, while optimizing the power configuration of power management module needed for backup power system, fully reduce super capacitor standby The cost of power-supply system promotes the reliability and stability of existing DTU distribution terminals backup power system.
Embodiment 2
The total capacity of super capacitor module needed for the reduction backup power system, while optimizing power supply needed for backup power system The power configuration of management module refers to：On the one hand, the interaction for realizing backup power system and DTU core cells, it is whole by DTU distribution End manages the output power of backup power system, and then the power consumption of management and control backup power system according to itself working condition；Separately On the one hand, it to be configured by rational power-supply system, promote the capacity usage ratio of super capacitor module itself, and reduce standby electricity The source system power consumption of itself.
Embodiment 3
As the specific manifestation of embodiment 2, the DTU distribution terminals super capacitor backup power system includes super capacitor mould Group, management of charging and discharging unit and electrolytic capacitor group three parts, wherein management of charging and discharging unit are by exchanging AC/DC power supplys, operation DC/ DC power supply and control DC/DC power supplys collectively form, and exchange AC/DC power supplys share two-way output, and two-way output is mutually isolated, works as friendship When flowing online, each module for power supply inside DTU distribution terminals, another way is given then super capacitor module to be given to charge all the way, meanwhile, exchange AC/DC power supplys have oneself state signal output function, and output state information is input AC working condition, output loop I Working condition and output loop II working conditions monitor friendship in real time by output state information for DTU distribution terminals core cell Flow the working condition of AC/DC power supplys.
Embodiment 4
As the specific manifestation of embodiment 3, the exchange AC/DC power supplys support external control signal switching function, are matched by DTU Arbitrary circuit is opened and disconnected to electric terminals control signal.
As shown in Figure 1, exchange AC/DC power supplys share two-way output, two-way output is mutually isolated.When exchanging online, Each module for power supply inside DTU distribution terminals, another way is given then super capacitor module to be given to charge all the way.Meanwhile exchanging AC/DC power supplys Has oneself state signal output function, output state information includes 3, i.e. input AC working condition, output loop 1 altogether 2 working condition of working condition and output loop is supervised by above-mentioned 3 status informations for DTU distribution terminal core cells in real time The working condition of test cross stream AC/DC power supplys.Meanwhile the power module also supports external control signal switching function, can pass through DTU Arbitrary circuit is opened and disconnected to distribution terminal control signal.AC/DC power supply specific works states are exchanged referring to table 1：
Table 1 exchanges AC/DC power state information tables
The operation DC/DC power supplys support high-power high voltage switching manipulation load, have 48V/8A pulse current fan-out capabilities, and Pulse electric current duration is not less than 15S；Have oneself state signal output function, while supporting suspend mode operating mode；Work as DTU When distribution terminal is not necessarily to switching manipulation, operation DC/DC power supplys are chronically at super low-power consumption suspend mode operating mode；When DTU distribution are whole When end need to execute switching manipulation, DTU distribution terminal inner core units, which are sent, wakes up instruction, and operation DC/DC power supplys receive this and refer to Suspend mode operating mode is jumped out after order immediately, waits for being transferred to suspend mode operating mode automatically after the completion of switching manipulation.
Operation DC/DC power supplys can support high-power high voltage switching manipulation to load, and have 48V/8A pulse current fan-out capabilities, And pulse electric current duration is not less than 15S.The power supply is likewise supplied with oneself state signal output function, while also supporting suspend mode Operating mode.When DTU distribution terminals are not necessarily to switching manipulation, which can be chronically at super low-power consumption suspend mode operating mode；When When DTU distribution terminals need to execute switching manipulation, DTU distribution terminal inner core units, which are sent, wakes up instruction, and operation DC/DC power supplys connect Suspend mode operating mode is jumped out immediately after receiving the instruction, waits for then being transferred to suspend mode operating mode automatically after the completion of switching manipulation.
Table 2 operates DC/DC power state information tables
The control DC/DC power supplys use high efficiency wide input range dual-output power supply module, wherein being used to match to DTU all the way Each module for power supply inside electric terminals, another way then charge to electrolytic capacitor group；It is defeated that control DC/DC power supplys have oneself state signal Go out function, while supporting external control signal remote switch function, is arbitrarily opened all the way in being exported by core cell controller two-way It closes.
It controls DC/DC power supplys and then uses high efficiency wide input range dual-output power supply module, wherein being used for all the way to DTU Each module for power supply inside distribution terminal, another way then charge to electrolytic capacitor group.It is defeated that the power supply is likewise supplied with oneself state signal Go out function, while also supporting external control signal remote switch function, it is any one in being exported by core cell controller two-way Way switch.
Table 3 controls DC/DC power state information tables
The electrolytic capacitor group forms for several long-life Low ESR type electrolytic capacitors, is connected in parallel on operation DC/DC power supplys output End exchanges under power failure state, fast to electrolytic capacitor group by controlling DC/DC electric power loops when operation with high pressure switch is failure to actuate Speed charging, and electrolytic capacitor group leakage current is compensated, so that electrolytic capacitor group voltage is maintained at operating voltage；It is dynamic in operation with high pressure switch During making instruction issuing to operation DC/DC power initiations, preferentially powered to Operation switch by electrolytic capacitor group, with reserved Enough operation DC/DC power on time prevent the failure of operation DC/DC Power supply belt heavy load startings, self-shield or directly damage.
Electrolytic capacitor group selects long-life Low ESR type electrolytic capacitor composition, it is connected in parallel on operation DC/DC power supplys output End.It exchanges under power failure state, when operation with high pressure switch is failure to actuate, by controlling the circuits power supply 48V DC/DC to electrolytic capacitor group Quick charge, and electrolytic capacitor group leakage current is compensated, so that electrolytic capacitor group voltage is maintained at 48V.In operation with high pressure switch motion During instruction issuing to operation DC/DC power initiations, preferentially powered to Operation switch by electrolytic capacitor group, to stop in advance Enough operation DC/DC power on time prevent the failure of operation DC/DC Power supply belt heavy load startings, self-shield or directly damage.
As shown in Figure 2,3, two kinds of operating modes of the DTU distribution terminals super capacitor backup power system, one, when exchange supply When electricity is normal, whether DTU distribution terminals are normally carried out control operation according to exchange AC/DC power supplys output loop, as exchange AC/DC When power supply output loop state is normal, while judging whether the state for operating DC/DC power supplys with controlling DC/DC power supplys is normal, control DC/DC power supply status processed normally then exports shutdown, and abnormal then fault warning operates the normally then suspend mode of DC/DC power supply status, no Normal then fault warning；When exchange AC/DC power supply output loop states are abnormal, judge that main current supply circuit and super capacitor fill Whether electrical circuit is abnormal, the fault warning if main current supply circuit is abnormal, while judging whether super capacitor module state is normal, such as Normal then open stand-by power supply circuit and make operation DC/DC power supply suspend mode, abnormal then super capacitor module fault warning is such as super Grade capacitor charging circuit then judges whether super capacitor module state is normal extremely, the super capacitor charge circuit failure if normal Alarm, abnormal then super capacitor module fault warning；Two, when Alternating Current Power Supply exception, first determine whether exchange whether power down, no Power down then judges whether exchange is under-voltage, not under-voltage, judges whether main current supply circuit is normal, no normally then by main for loop power supply Then AC dump or AC undervoltage or main current supply circuit is abnormal goes to judge whether super capacitor module is normal, it is abnormal, surpass Grade electric capacity module fault warning, just whether normally then stand-by power supply current supply circuit is fully open, judge stand-by power supply current supply circuit Often, it is normally then powered by stand-by power supply current supply circuit, abnormal then stand-by power supply current supply circuit fault warning judges electrolytic capacitor Whether group charge circuit is normal, and normally then electrolytic capacitor group charges, abnormal then electrolytic capacitor group charge circuit fault warning, surpasses Grade electric capacity module also sends out operation with high pressure switch motion instruction when normal, operation with high pressure switch motion operates DC/DC power initiations Work operates DC/DC power supply suspend mode if operation with high pressure switch motion is completed after being then delayed, and otherwise judges operation DC/DC power supply works Whether work is normal, abnormal, operates the alarm of DC/DC power failures.
The beneficial effects of the invention are as follows：1, since management of charging and discharging unit comprising modules are exchange AC/DC power supplys, control DC/DC power supplys and operation DC/DC power supplys, status information can real-time report, each power module status information is accurate to inside Each output loop is conducive to continue tracking system internal electric source module operating status, safeguards and examine for later stage backup power system It repaiies and provides great convenience.
2, in Alternating Current Power Supply status information and super capacitor module state information fusion to power module, DTU distribution terminals Only communicated with each power module in backup power system.In actual application, each power module can be concentrated in system Place a cabinet in or cabinet a certain layer, facilitate the communication harness between backup power system and DTU core cells to arrange. It realizes that power is electrically separated in addition, also helping, input AC and super capacitor module sampled signal is avoided to be sent directly into DTU cores Unit is handled, but is uploaded to DTU cores again after first forceful electric power sampled signal is converted and handled inside power module Heart unit mitigates DTU core cells additionally increased task amount as possible.
3, backup power system working condition is controllable.Internal system management of charging and discharging unit, which respectively forms power module, can lead to It crosses DTU core cells control instruction and opens and disconnect output loop, realize the dynamic control of working state of system.Pass through system Working state control, on the one hand, can shielding system internal fault electric power loop in time, prevent internal system failure propagation；Separately On the one hand, system operation power consumption can be effectively reduced, it, can be by suspend mode and low especially during super capacitor module backup Two kinds of operating modes of power consumption, dynamic management system power consumption, and then extend the super capacitor module backup time.
4, backup power system fault distinguishing is simple.Due to the failure of each power module of internal system management of charging and discharging unit Information can be accurate to specific circuit, can more precisely positioning system failure, system fault diagnosis and investigation is rapidly completed. On the basis of this, it can also be counted according to longtime running failure rate, it has further been found that it is insufficient present in system design, it is standby electricity Source systems stay optimization provides data and supports.
The DTU distribution terminal super capacitor backup power systems realize DTU distribution on the basis of original battery system The interaction of terminal core unit and backup power system is, it can be achieved that entire backup power supply working condition real-time query, tracking, control System, supports quick self diagnosis and troubleshooting, substantially mitigates maintenance work task amount, promotes backup power system intelligence water It is flat, also have laid a good foundation for backup power system Continuous optimization..
One of ordinary skill in the art will appreciate that：The above embodiments are only used to illustrate the technical solution of the present invention., and It is non-that it is limited；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art It should be understood that：Its still can with technical scheme described in the above embodiments is modified, either to which part or All technical features carries out equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution this hair The range of bright each embodiment technical solution.
Claims (8)
1. a kind of DTU distribution terminals super capacitor backup power system, it is characterised in that：By reducing needed for backup power system The total capacity of super capacitor module, while optimizing the power configuration of power management module needed for backup power system, fully reduce The cost of super capacitor backup power system promotes the reliability and stability of existing DTU distribution terminals backup power system.
2. DTU distribution terminals super capacitor backup power system according to claim 1, it is characterised in that：The reduction The total capacity of super capacitor module needed for backup power system, while optimizing the work(of power management module needed for backup power system Rate configures：On the one hand, the interaction for realizing backup power system and DTU core cells, by DTU distribution terminals according to itself work The output power of backup power system, and then the power consumption of management and control backup power system are managed as state；On the other hand, to pass through Rational power-supply system configuration, promotes the capacity usage ratio of super capacitor module itself, and reduce backup power system itself Power consumption.
3. DTU distribution terminals super capacitor backup power system according to claim 2, it is characterised in that：The DTU matches Electric terminals super capacitor backup power system includes super capacitor module, management of charging and discharging unit and electrolytic capacitor group three parts, Wherein management of charging and discharging unit is collectively formed by exchanging AC/DC power supplys, operation DC/DC power supplys and control DC/DC power supplys, is exchanged AC/DC power supplys share two-way output, and two-way output is mutually isolated, when exchanging online, give each mould inside DTU distribution terminals all the way Block is powered, and another way then gives super capacitor module to charge, meanwhile, exchange AC/DC power supplys have oneself state signal output function, Its output state information is input AC working condition, output loop I working conditions and output loop II working conditions, by defeated The information that does well monitors the working condition of exchange AC/DC power supplys for DTU distribution terminals core cell in real time.
4. DTU distribution terminals super capacitor backup power system according to claim 3, it is characterised in that：The exchange AC/DC power supplys support external control signal switching function, and controlling signal by DTU distribution terminals opens and disconnect arbitrary circuit.
5. DTU distribution terminals super capacitor backup power system according to claim 3, it is characterised in that：The operation DC/DC power supplys support high-power high voltage switching manipulation load, have 48V/8A pulse current fan-out capabilities, and pulse current continues Time is not less than 15S；Have oneself state signal output function, while supporting suspend mode operating mode；When DTU distribution terminals are not necessarily to When switching manipulation, operation DC/DC power supplys are chronically at super low-power consumption suspend mode operating mode；When DTU distribution terminals need to execute switch When operation, DTU distribution terminal inner core units, which are sent, wakes up instruction, and operation DC/DC power supplys are jumped out immediately after receiving the instruction Suspend mode operating mode waits for being transferred to suspend mode operating mode automatically after the completion of switching manipulation.
6. DTU distribution terminals super capacitor backup power system according to claim 3, it is characterised in that：The control DC/DC power supplys use high efficiency wide input range dual-output power supply module, wherein being used for all the way to each inside DTU distribution terminals Module for power supply, another way then charge to electrolytic capacitor group；Control DC/DC power supplys have oneself state signal output function, simultaneously Support external control signal remote switch function, any one way switch in being exported by core cell controller two-way.
7. DTU distribution terminals super capacitor backup power system according to claim 3, it is characterised in that：The electrolysis Capacitance group forms for several long-life Low ESR type electrolytic capacitors, is connected in parallel on operation DC/DC power output ends, exchanges dead electricity shape Under state, when operation with high pressure switch is failure to actuate, by controlling DC/DC electric power loops to electrolytic capacitor group quick charge, and compensate Electrolytic capacitor group leakage current makes electrolytic capacitor group voltage be maintained at operating voltage；It is arrived in operation with high pressure switch motion instruction issuing It during operating DC/DC power initiations, is preferentially powered to Operation switch by electrolytic capacitor group, with reserved enough operations DC/DC power on time prevents the failure of operation DC/DC Power supply belt heavy load startings, self-shield or directly damage.
8. DTU distribution terminals super capacitor backup power system according to claim 3, it is characterised in that：The DTU matches Two kinds of operating modes of electric terminals super capacitor backup power system, one, when Alternating Current Power Supply is normal, DTU distribution terminals are according to exchange Whether AC/DC power supplys output loop is normally carried out control operation, when exchange AC/DC power supply output loop states are normal, simultaneously Judge to operate DC/DC power supplys and whether the state of control DC/DC power supplys is normal, control DC/DC power supply status normally then exports pass Disconnected, abnormal then fault warning operates the normally then suspend mode of DC/DC power supply status, abnormal then fault warning；As exchange AC/DC When power supply output loop state is abnormal, judge whether main current supply circuit and super capacitor charge circuit are abnormal, power back Ru main The abnormal then fault warning in road, while judging whether super capacitor module state is normal, open stand-by power supply circuit simultaneously if normal Operation DC/DC power supply suspend mode, abnormal then super capacitor module fault warning is set to judge if super capacitor charge circuit is abnormal Whether super capacitor module state is normal, the super capacitor charge circuit fault warning if normal, abnormal then super capacitor mould Group fault warning；Two, when Alternating Current Power Supply exception, first determine whether exchange whether power down, not power down then judge exchange it is whether under-voltage, It is not under-voltage, judge whether main current supply circuit normal, normally then by main for loop power supply, otherwise AC dump or AC undervoltage or Main current supply circuit is abnormal to be gone to judge whether super capacitor module is normal, abnormal then super capacitor module fault warning, just It is normal then stand-by power supply current supply circuit is fully open, judge whether stand-by power supply current supply circuit is normal, is normally then supplied by stand-by power supply Electrical circuit is powered, and abnormal then stand-by power supply current supply circuit fault warning judges whether electrolytic capacitor group charge circuit is normal, just Normal then electrolytic capacitor group charges, and abnormal then electrolytic capacitor group charge circuit fault warning, super capacitor module is also sent out when normal Go out operation with high pressure switch motion instruction, operation with high pressure switch motion, operation DC/DC power initiations work, as operation with high pressure switchs Action complete, then be delayed after operate DC/DC power supply suspend mode, otherwise judge operation DC/DC power works it is whether normal, it is abnormal then Operate the alarm of DC/DC power failures.
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Cited By (10)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599944A (en) * | 2018-11-29 | 2019-04-09 | 浙江涵普电力科技有限公司 | Intelligent distribution transformer terminals |
| CN110401260A (en) * | 2019-07-19 | 2019-11-01 | 广东浪潮大数据研究有限公司 | A kind of server backup power source and server power supply |
| CN110829570A (en) * | 2019-11-18 | 2020-02-21 | 天津合众汇能科技有限公司 | Dormant intelligent power distribution terminal and standby power supply output control method |
| CN111028499A (en) * | 2019-11-14 | 2020-04-17 | 珠海许继电气有限公司 | Intelligent integration terminal for Internet of things platform area and data acquisition and processing method thereof |
| CN111391676A (en) * | 2020-03-20 | 2020-07-10 | 重庆中科超容科技有限公司 | Super capacitor and battery parallel control system |
| CN111555436A (en) * | 2020-05-09 | 2020-08-18 | 江苏深瑞汇阳能源科技有限公司 | Power supply circuit of platform district intelligent fusion terminal |
| CN112054590A (en) * | 2020-09-04 | 2020-12-08 | 石家庄通合电子科技股份有限公司 | Capacitor direct-current guarantee power supply |
| CN112526914A (en) * | 2020-12-21 | 2021-03-19 | 苏州光格科技股份有限公司 | Low-power-consumption management flow method for milliampere-level data acquisition unit |
| WO2021072605A1 (en) * | 2019-10-14 | 2021-04-22 | 中国电力科学研究院有限公司 | Modular terminal |
| CN113394875A (en) * | 2021-06-22 | 2021-09-14 | 福建网能科技开发有限责任公司 | Method for optimizing system power supply and switching standby power supply |
Citations (7)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1561270A2 (en) * | 2002-11-15 | 2005-08-10 | Sprint Communications Company, L.P. | Proton exchange membrane based power system for a telecommunication facility |
| CN202374020U (en) * | 2011-12-31 | 2012-08-08 | 成都芯通科技股份有限公司 | Backup power supply device based on super-capacitor |
| CN203038378U (en) * | 2013-01-23 | 2013-07-03 | 浪潮齐鲁软件产业有限公司 | Encryption type DTU module capable of performing external programming |
| CN104362689A (en) * | 2014-10-29 | 2015-02-18 | 中国石油化工股份有限公司 | Direct-current emergency power supply device with supercapacitor module |
| CN204905976U (en) * | 2015-09-08 | 2015-12-23 | 北京泽源惠通科技发展有限公司 | Power management means |
| CN205070606U (en) * | 2015-10-12 | 2016-03-02 | 国网天津市电力公司 | Novel DTU and distribution network automation system for distribution network automation |
| CN206962517U (en) * | 2017-07-11 | 2018-02-02 | 扬州贝尔斯通科技有限公司 | Gate uninterruptible power system |
-
2018
- 2018-05-19 CN CN201810483786.5A patent/CN108565960B/en active Active
Patent Citations (7)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1561270A2 (en) * | 2002-11-15 | 2005-08-10 | Sprint Communications Company, L.P. | Proton exchange membrane based power system for a telecommunication facility |
| CN202374020U (en) * | 2011-12-31 | 2012-08-08 | 成都芯通科技股份有限公司 | Backup power supply device based on super-capacitor |
| CN203038378U (en) * | 2013-01-23 | 2013-07-03 | 浪潮齐鲁软件产业有限公司 | Encryption type DTU module capable of performing external programming |
| CN104362689A (en) * | 2014-10-29 | 2015-02-18 | 中国石油化工股份有限公司 | Direct-current emergency power supply device with supercapacitor module |
| CN204905976U (en) * | 2015-09-08 | 2015-12-23 | 北京泽源惠通科技发展有限公司 | Power management means |
| CN205070606U (en) * | 2015-10-12 | 2016-03-02 | 国网天津市电力公司 | Novel DTU and distribution network automation system for distribution network automation |
| CN206962517U (en) * | 2017-07-11 | 2018-02-02 | 扬州贝尔斯通科技有限公司 | Gate uninterruptible power system |
Non-Patent Citations (3)
* Cited by examiner, † Cited by third party| Title |
|---|
| RODRIGO GARCIA-VALLE等: "DTU PMU laboratory development — Testing and validation", 《 2010 IEEE PES INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE EUROPE (ISGT EUROPE)》 * |
| 肖雄等: "智能电网中馈线终端的研究与设计", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 韩利群等: "配电终端应用超级电容探析", 《供用电》 * |
Cited By (13)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599944A (en) * | 2018-11-29 | 2019-04-09 | 浙江涵普电力科技有限公司 | Intelligent distribution transformer terminals |
| CN110401260A (en) * | 2019-07-19 | 2019-11-01 | 广东浪潮大数据研究有限公司 | A kind of server backup power source and server power supply |
| CN110401260B (en) * | 2019-07-19 | 2023-08-22 | 广东浪潮大数据研究有限公司 | Server standby power supply and server power supply |
| WO2021072605A1 (en) * | 2019-10-14 | 2021-04-22 | 中国电力科学研究院有限公司 | Modular terminal |
| CN111028499A (en) * | 2019-11-14 | 2020-04-17 | 珠海许继电气有限公司 | Intelligent integration terminal for Internet of things platform area and data acquisition and processing method thereof |
| CN110829570B (en) * | 2019-11-18 | 2022-05-24 | 天津合众汇能科技有限公司 | Dormant intelligent power distribution terminal and standby power supply output control method |
| CN110829570A (en) * | 2019-11-18 | 2020-02-21 | 天津合众汇能科技有限公司 | Dormant intelligent power distribution terminal and standby power supply output control method |
| CN111391676A (en) * | 2020-03-20 | 2020-07-10 | 重庆中科超容科技有限公司 | Super capacitor and battery parallel control system |
| CN111555436A (en) * | 2020-05-09 | 2020-08-18 | 江苏深瑞汇阳能源科技有限公司 | Power supply circuit of platform district intelligent fusion terminal |
| CN112054590A (en) * | 2020-09-04 | 2020-12-08 | 石家庄通合电子科技股份有限公司 | Capacitor direct-current guarantee power supply |
| CN112054590B (en) * | 2020-09-04 | 2022-07-12 | 石家庄通合电子科技股份有限公司 | Capacitor direct-current guarantee power supply |
| CN112526914A (en) * | 2020-12-21 | 2021-03-19 | 苏州光格科技股份有限公司 | Low-power-consumption management flow method for milliampere-level data acquisition unit |
| CN113394875A (en) * | 2021-06-22 | 2021-09-14 | 福建网能科技开发有限责任公司 | Method for optimizing system power supply and switching standby power supply |
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