CN110970989A - Control power supply system for electric locomotive - Google Patents
- ️Tue Apr 07 2020
CN110970989A - Control power supply system for electric locomotive - Google Patents
Control power supply system for electric locomotive Download PDFInfo
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Publication number
- CN110970989A CN110970989A CN201811137364.9A CN201811137364A CN110970989A CN 110970989 A CN110970989 A CN 110970989A CN 201811137364 A CN201811137364 A CN 201811137364A CN 110970989 A CN110970989 A CN 110970989A Authority
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- China Prior art keywords
- dc110v
- battery
- load
- power supply
- control power Prior art date
- 2018-09-28 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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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 61
- 238000007600 charging Methods 0.000 claims abstract description 54
- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 12
- 238000009877 rendering Methods 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 24
- 238000013461 design Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004260 weight control Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 102100031786 Adiponectin Human genes 0.000 description 1
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- SWAIALBIBWIKKQ-UHFFFAOYSA-N lithium titanium Chemical compound [Li].[Ti] SWAIALBIBWIKKQ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
According to the present invention, there is provided a control power supply system for an electric locomotive, the control power supply system comprising: the alternating current input device is used for inputting alternating current to the control power supply system from a locomotive running contact network; the AC/DC110V module assembly converts direct current input by an alternating current input device into 110V direct current for a load; a battery and management system having a locomotive battery; controlling the power switching assembly to provide 110V current to the AC/DC110V module assembly, the 110V current for operating the AC/DC110V module assembly, the controlling the power switching assembly having: a battery load control contactor for receiving 110 volt current from a locomotive battery; and the external direct current charging input interface is used for receiving 110V current from an external direct current charging device, wherein the external direct current charging device is arranged for charging the locomotive storage battery by controlling the power supply switching assembly.
Description
Technical Field
The invention relates to a control power supply system for an electric locomotive, in particular to a control power supply system for a high-speed passenger electric locomotive, and relates to the field of railway locomotive manufacturing.
Background
Railway transportation is a major artery for economic operation in China and plays an important role in the traffic system in China. With the rapid development of national economy, railways in China also enter the era with high speed and heavy load as the theme. Along with the increase of the railway running speed, the stricter the requirement of a running line on the axle weight of a locomotive is, and the lightweight design is continuously mentioned in the product design.
At present, a charging cabinet and a lead-acid storage battery are generally installed and used on a locomotive to provide power for a control circuit, and the locomotive is large in size, heavy in weight and high in installation space requirement. With the continuous development of the rail transit transportation industry, the control load of the locomotive is larger and larger, the requirement for light weight is higher and higher, and the defects of large weight and easy feeding of the lead-acid storage battery are more and more obvious. The lithium titanate battery has the characteristics of light weight, high safety, long service life and environmental protection, and meets the requirement on light weight of the storage battery. However, the lithium battery is complicated to use, and a battery management system is required to detect the battery capacity, the maximum battery cell temperature, the minimum battery cell temperature, the average battery cell temperature, the battery voltage, the battery current and the battery power, and a communication function with a charger and a locomotive control system is required.
The control power supply provided by the invention has the main characteristics that: the integration degree is high, the volume is small, and the installation space of the screen cabinet is saved; the whole structure is light; has an external communication function.
Disclosure of Invention
The invention provides a design of a control power supply system for a high-speed passenger electric locomotive. The control power supply system provided by the invention can meet the weight reduction requirement of the whole high-speed passenger electric locomotive, the storage battery adopts the lithium titanate battery with lighter weight, the charging cabinet and the storage battery are subjected to system integration design, the whole locomotive can be effectively matched to reduce the weight of the whole locomotive through the new system design, and meanwhile, the functions of the power supply cabinet, the storage battery (lithium battery), a battery management system and the like can be perfectly integrated, so that a novel power supply cabinet for the locomotive is formed.
According to the present invention, there is provided a control power supply system for an electric locomotive, the control power supply system comprising: the alternating current input device is used for inputting alternating current to the control power supply system from a locomotive running contact network; the AC/DC110V module assembly converts direct current input by an alternating current input device into 110V direct current for a load; a battery and management system having a locomotive battery; controlling the power switching assembly to provide 110V current to the AC/DC110V module assembly, the 110V current for operating the AC/DC110V module assembly, the controlling the power switching assembly having: a battery load control contactor for receiving 110 volt current from a locomotive battery; and the external direct current charging input interface is used for receiving 110V current from an external direct current charging device, wherein the external direct current charging device is arranged for charging the locomotive storage battery by controlling the power supply switching assembly.
It is thereby advantageously achieved that, depending on locomotive operating conditions, such as communication with locomotive operating catenary or parking in garage, the control power supply system of the present invention may selectively receive 110V current from catenary, locomotive battery or external DC charging device through the control power switching assembly, the 110V current being used to operate the various modular assemblies to effect power supply to the DC110V load, the DC24V load and the driver's living equipment AC230V load.
Advantageously in accordance with the present invention, an AC/DC110V module assembly is provided for supplying 110 VDC to a DC110V load output interface, and a DC110V load output interface is used to power a DC110V load.
Advantageously according to the invention, an external DC charging input transfer switch is provided between the AC/DC110V module pack and the DC110V load output interface, the external DC charging input interface being electrically connected to the external DC charging input transfer switch for converting between the 110V DC supply circuit of the external DC charging input interface and the 110V DC supply circuit of the AC/DC110V module pack to charge the locomotive battery, and the battery load control contactor being electrically connected to the junction between the external DC charging input transfer switch and the DC110V load output interface.
Advantageously according to the invention, the control power switching assembly is provided with a first diode for rendering the external DC charging input interface conductive to the external DC charging input changeover switch, and the control power switching assembly has a second diode provided between the junction of the main contacts of the battery load control contactor and the DC110V load output interface for rendering the main contacts of the battery load control contactor conductive to the DC110V load output interface.
Advantageously according to the invention, the control power switching assembly also has a cabin battery interface for receiving a 110V current from the cabin battery.
Advantageously according to the invention, the cabin battery interface is electrically connected between the second diode and the DC110V load output interface.
Advantageously according to the invention, the control power switching assembly is provided with a third diode for rendering the cabin accumulator interface conductive to the 110V direct current supply circuit of the AC/DC110V module assembly.
Advantageously according to the invention, the control power supply system has a load power conversion module having a DC110V input interface, the load power conversion module being arranged to convert 110V DC power received from the AC/DC110V module assembly for use by the load.
Advantageously according to the invention, the load power conversion assembly has a DC/AC module (131) for converting 110V DC power to AC power and supplying it to the AC230V load output interface and a DC/DC module for DC converting 110V DC power and supplying it to the DC24V load output interface.
Advantageously according to the invention, the control power supply system has a monitoring module component for monitoring, displaying and managing the control power supply system.
The invention also relates to a novel lightweight control power supply system design which advantageously adopts a novel storage battery-lithium titanate battery to charge a locomotive storage battery, such as a lithium battery pack, especially a titanium lithium battery pack, through the AC/DC110V module assembly and provide power for a locomotive control circuit, so that the total weight of the power supply cabinet is controlled within the technical requirements, and the lightweight power supply cabinet design is realized.
In the design of the novel light-weight control power supply system, the control power supply is advantageously designed by integrating a charger and a storage battery.
In the design of the novel light-weight control power supply system, the monitoring module assembly monitors, displays and manages the AC/DC110V power supply, the DC24V power supply, the DC/AC module and the lithium battery, has a real-time recording function on the actual working states of the lithium battery and the charging module of the whole power supply cabinet, and realizes the operation analysis and fault prejudgment on the working conditions of the whole power supply cabinet by the real-time data of the monitoring unit and combining with expert diagnostic analysis software, thereby realizing the capacity display and state analysis of the lithium battery.
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
In the drawings:
fig. 1 shows a power cabinet arrangement according to an embodiment of the invention.
Fig. 2 shows a schematic diagram of a control power supply system according to an embodiment of the present invention.
Fig. 3 shows a schematic diagram of a power cabinet lithium battery load control contactor according to an embodiment of the invention.
List of reference numerals
100 control power supply system
110 storage battery and management device
111 locomotive accumulator
112 RS485 communication interface
113 output interface
120 AC/DC110V module assembly
121 first AC/DC110V module
122 second AC/DC110V module
123 third AC/DC110V module
124 fourth AC/DC110V module
125 first circuit breaker
126 second circuit breaker
127 third circuit breaker
128 fourth circuit breaker
130 load electricity conversion assembly
131 DC/AC module
132 DC/DC module
133 DC/DC module
134 DC110V input interface
135 DC24V load output interface
136 AC230V load output interface
140 monitor module assembly
141 current sensor
142 current sensor
143 RS485 Ethernet conversion module
144 power input terminal
145 overvoltage protector
146 fifth circuit breaker
150 control power supply switching assembly
151 external dc charging input transfer switch
152 first diode
152' second diode
152' third diode
153 carriage battery change-over switch
154 battery load control contactor
155 working selection switch
156 DC110V load output interface
157 carriage accumulator interface
158 uninterrupted power supply interface
159 external DC charging input interface
160 ac input device
161 alternating current input terminal
162 filter
200 locomotive network control system
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
While this invention is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail several specific embodiments, with the understanding that the present description is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the drawings illustrated herein.
Likewise, references to a feature or aspect are intended to describe a feature or aspect of an example of the invention and do not imply that every embodiment thereof must have the described feature or aspect. Further, it should be noted that the description shows a number of features. While certain features have been combined to illustrate a potential system design, other combinations not explicitly disclosed may also be employed for these features. Accordingly, the combinations are not intended to be limiting unless otherwise specified.
In the embodiments shown in the drawings, directional references such as up, down, left, right, front and rear, etc. are not absolute, but relative, and are used to explain the structure and movement of various components of the present invention. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the location of an element changes, it is believed that these representations will change accordingly.
Fig. 1 shows a power cabinet arrangement according to an embodiment of the invention. The power supply cabinet apparatus or control
power supply system100 provided by the present invention is used in, for example, a high-speed passenger locomotive.
The electric locomotive control
power supply system100 is an important part of an ac electric locomotive for supplying power to a control circuit load.
The control power supply system 100 provided by the present invention is configured to: the AC/DC110V module assembly 120 is connected to the fixed frequency and fixed voltage branch of the auxiliary circuit, outputs DC110V power to charge the battery, such as a lithium battery pack, and provides power to the locomotive control circuit load; one or more, in this embodiment two, DC/DC modules 132, 133, e.g., DC/DC24V, are connected to the control power supply output circuit to provide power to the DC24V load circuit; one or more, in this embodiment, one DC/AC module 131, for example, a DC/AC230V module, provides a stable alternating current 230V power to the cab mobile device for power supply; the monitoring module assembly 140 monitors, displays and manages the AC/DC110V module assembly 120, the DC/DC module 132, the DC/AC module 131 and the lithium battery charger, has a real-time recording function for the actual working states of the lithium batteries and the charging modules of the whole power cabinet, and realizes the operation analysis and fault prejudgment of the working conditions of the whole power cabinet or the control power system 100 by the real-time data of the monitoring module assembly 140 and combining with expert diagnosis and analysis software, so as to realize the capacity display and state analysis of the lithium batteries; the power supply cabinet has an Ethernet communication function, and realizes real-time data sharing between the power supply cabinet operation data and the locomotive network control system.
Fig. 2 shows a schematic diagram of a control power supply system according to an embodiment of the present invention. After closing a
locomotive battery111, such as a circuit breaker of a lithium battery pack (not shown, this circuit breaker or switch only serves as a protection switch, not as an operation switch, because in practice this switch is always closed), provided in the battery and
management device110, the
locomotive battery111 supplies operating power to the
monitoring module assembly140 and starts operating, which communicates with the
monitoring module assembly140 through the
RS485 communication interface112.
Referring to fig. 3, the
locomotive battery111
outputs110V power to the battery
load control contactor154 of the control
power switching assembly150 through the
output interface113, when the operation selection switch (QP1)155 is turned from the "off" position to the "on" position, the coil of the power cabinet battery load control contactor (KM1)154 is energized, the main contacts are closed, and at this time, the AC/
DC110V module assembly120, i.e., the first AC/
DC110V module121, the second AC/
DC110V module122, the third AC/
DC110V module123, the auxiliary power supply of the fourth AC/
DC110V module124, the DC/
AC module131, and the DC/
DC modules132 and 133 obtain DC110V power to operate, the output load circuit is normally connected, and the devices in the locomotive load circuit are normally started to operate.
After the locomotive normally rises and closes the main circuit, 3AC380V voltage is input to the power cabinet or the control
power supply system100 through the
AC input end161 of the
AC input device160, the control
power supply system100 main circuit firstly performs noise reduction processing on the input 3AC380V AC through the
filter162, and then sends the processed AC to four AC/DC modules through the independent breaker control switches, namely the
first breaker125, the
second breaker126, the
third breaker127 and the
fourth breaker128, namely the first AC/
DC110V module121, the second AC/
DC110V module122, the third AC/
DC110V module123 and the fourth AC/
DC110V module124, and the output of the four ACDC modules adopts a parallel current-sharing output mode, so that the output DC voltage can be provided for a load and a lithium battery pack to be charged. For example, the AC/
DC110V module assembly120 is configured to provide 110 vdc to the DC110V
load output interface156, and the DC110V
load output interface156 is configured to power the DC110V load. Advantageously, lithium battery pack charge profile and management is fully in accordance with lithium battery specifications.
According to an embodiment of the present invention, an external DC charging
input transfer switch151 is provided between the AC/
DC110V module assembly120 and the DC110V
load output interface156, the external DC charging
input interface159 is electrically connected to the external DC charging
input transfer switch151, the external DC charging
input transfer switch151 is used to convert between the 110V DC power supply circuit of the external DC charging
input interface159 and the 110V DC power supply circuit of the AC/
DC110V module assembly120 to charge the
locomotive battery111, and the battery
load control contactor154 is electrically connected to a junction between the external DC charging
input transfer switch151 and the DC110V
load output interface156.
According to an embodiment of the present invention, the control
power switching assembly150 is provided with a
first diode152 for conducting the external DC charging
input interface159 to the external DC charging
input transfer switch151, and the control
power switching assembly150 has a second diode 152' provided between the contact of the battery
load control contactor154 and the DC110V
load output interface156 for conducting the contact of the battery
load control contactor154 to the DC110V load output interface (156). The
first diode152 and/or the second diode 152' prevent the external consumer, such as the DC110V
load output interface156, from consuming power input through the internal socket, such as the external DC charging
input interface159, i.e., the external DC charging
input interface159 is only available to charge the locomotive battery and to power the locomotive charger control power load and is not able to consume battery power.
According to an embodiment of the present invention, the
control power system100 has a load
power conversion assembly130, the load
power conversion assembly130 has a
DC110V input interface134, and the load
power conversion assembly130 is configured to convert 110V DC power received from an AC/DC110V module assembly for load power.
According to an embodiment of the present invention, the load
power conversion assembly130 has a DC/
AC module131 and DC/
DC modules132 and 133, wherein the DC/
AC module131 is configured to convert 110V DC power into AC power and provide the AC power to an AC230V
load output interface136, and the DC/
DC modules132 and 133 are configured to convert 110V DC power into DC power and provide the DC power to a DC24V
load output interface135.
Advantageously according to the invention, the
monitoring module arrangement140 monitors and controls the operation of the
filter162, for example, by providing an
overvoltage protection device145 and a
fifth circuit breaker146 between the
monitoring module arrangement140 and the
filter162. In addition, the
monitoring module assembly140 communicates with the locomotive
network control system200 via an RS485 to
Ethernet module143, the RS485 to
Ethernet module143 inputs, for example, 110V power for operation via the
power input144.
In order to ensure that the power supply cabinet or the control
power supply system100 can perform current-limiting output when the output load of the locomotive is the maximum load and simultaneously, in order to realize accurate current-limiting constant-voltage charging of the lithium battery according to the charging curve requirement, a
current sensor141 and a
current sensor142 are respectively connected in series in a total output loop and a lithium battery charging loop inside the power supply cabinet or the control
power supply system100, so that the power supply cabinet or the control
power supply system100 can reliably and accurately realize the current-limiting output of the total output load of the power supply cabinet and the functional logic control of the current-limiting constant-voltage charging requirement of the lithium battery.
Under the special condition that the locomotive cannot provide a power cabinet or control the 3AC380V of the normal operation of the
power system100 or the lithium battery is severely lack of power, the function of directly charging the lithium battery and supplying power to the load can be realized through a direct current power supply provided outside the locomotive, for example, an external direct current charging device, through an external direct current
charging input interface159, a positive and negative connection wire is led out from a port of an external access wire of the lithium battery inside the power cabinet, after the internal wiring of the power cabinet, a special electrical interface such as in-house charging is provided to the outside, when the circuit wiring of in-house charging is performed, for example, an external direct current charging input change-over
switch151, for example, an in-house change-over switch, is connected in series in a circuit loop of the power cabinet, so as to prevent the in-house charging from being overloaded or short-circuited, the in-house charging circuit can be cut off, and simultaneously, the purpose of safe electricity utilization is achieved.
The control
power switching assembly150 also has a
cabin battery interface157 for receiving the 110 volt current from the cabin battery, the
cabin battery interface157 being electrically connected between the second diode 152' and the DC110V
load output interface156. In an extreme case, the emergency power supply function is provided to the vehicle by using the car battery through the
car battery interface157, and the connection line between the
car battery interface157 and the AC/
DC110V module unit120 supplies a starting power supply, for example, 110V DC power, for the module operation. The
power switching assembly150 is further provided with a
third diode152 "for conducting the
car battery interface157 to the 110V DC power supply circuit of the AC/
DC110V module assembly120, so as to prevent the car battery from being charged by the vehicle, i.e., the AC/
DC110V module assembly120 and/or the battery and
management device110. A cabin
battery changeover switch153, which is controlled to switch on the cabin battery, is provided between the
third diode152 ″ and the
cabin battery interface157.
Advantageously, according to the invention, the parallel connection of the cabin battery to the vehicle battery is prevented in the case of at least the simultaneous provision of the second diode 152' and the
third diode152 ", which effectively prevents internal consumption of the battery capacity.
Advantageously according to the present invention, the control
power switching assembly150 also has an uninterruptible
power supply interface158 electrically connected between the battery
load control contactor154 and the
locomotive battery111 for powering devices requiring uninterruptible power supply.
By means of the special circuit design of the control power
supply switching arrangement150 according to the invention, it is possible for the AC/
DC110V module arrangement120 of the control
power supply system100 to be operated with one of the
locomotive battery111, an external direct-current charging device or, if appropriate, with a cabin battery, and, after the AC/
DC110V module arrangement120 has been started, to be able to charge the
locomotive battery111 and supply the corresponding load with power by means of the control power
supply switching arrangement150.
In the whole working process of the power cabinet or the
control power system100, the
monitoring module component140 of the power cabinet or the
control power system100 can accurately monitor and record completely in real time, and the whole real-time recording time is not less than 168 hours (7 days); by downloading the real-time data of the
monitoring module component140 and combining with expert software, the real-time working condition of the power cabinet within 7 days can be comprehensively and completely restored, the capacity display and the state analysis of the lithium battery can be realized, and new application functions such as fault prediction and analysis of the power cabinet can be realized.
Technical parameters
The technical parameters of an embodiment of the control
power supply system100 of the present invention are shown in the following table:
TABLE 1 charging Module principal parameters
TABLE 2 Battery pack parameters
TABLE 3 Battery management System parameters
TABLE 3 Battery management System parameters (continuation)
| Item | Parameter(s) |
| Total current collection range | ±100A |
| Total current collection accuracy | ±2％ |
| Temperature acquisition range | -40℃～120℃ |
| Accuracy of temperature acquisition | ±1℃ |
| SOC calculation accuracy | <8％ |
| Calculation of SOH | Dynamic assessment |
| Insulation impedance monitoring | BMS is from area |
| Communication protocol | Ethernet communication |
According to one embodiment, the weight reduction results of the control power supply system are shown in the following table:
TABLE 4 comparison of parameters
By contrast, the control power supply system of the high-speed passenger locomotive provided by the invention has the lowest weight and obvious advantages under the condition of similar capacity. Therefore, the control power supply system of the invention can completely meet the requirements of the modern lightweight high-speed passenger locomotive: high integration degree, small overall dimension, light weight and high reliability.
The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The description herein is intended to be illustrative, and not to limit the scope of the claims. Various alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other characteristics of the exemplary embodiments described herein may be combined in various ways to produce additional and/or alternative exemplary embodiments.
As the present features may be embodied in several forms without departing from the characteristics of the present invention, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A control power supply system for an electric locomotive, the control power supply system comprising:
the alternating current input device is used for inputting alternating current to the control power supply system from a locomotive running contact network;
the AC/DC110V module assembly converts the direct current input by the alternating current input device into 110V direct current for a load;
a battery and management system having a locomotive battery;
controlling a power switching assembly to provide 110V current to the AC/DC110V module assembly, the 110V current for operating the AC/DC110V module assembly, the controlling power switching assembly having: a battery load control contactor for receiving the 110 volt current from the locomotive battery; an external DC charging input interface for receiving the 110V current from an external DC charging device, wherein the external DC charging device is configured to charge the locomotive battery via the control power switching assembly.
2. The control power system of claim 1, wherein the AC/DC110V module assembly is configured to provide 110 vdc power to a DC110V load output interface, the DC110V load output interface configured to power a DC110V load.
3. The control power system of claim 2, wherein an external DC charging input transfer switch is provided between the AC/DC110V module assembly and the DC110V load output interface, the external DC charging input interface being electrically connected to the external DC charging input transfer switch for switching between the 110 vdc supply circuit of the external DC charging input interface and the 110 vdc supply circuit of the AC/DC110V module assembly to charge the locomotive battery, and the main contacts of the battery load control contactor being electrically connected to the junction between the external DC charging input transfer switch and the DC110V load output interface.
4. The control power supply system according to claim 3, wherein said control power supply switching component is provided with a first diode for rendering conductive an external DC charging input interface to said external DC charging input changeover switch, and said control power supply switching component has a second diode provided between said contact point of a main contact point of said battery load control contactor and said DC110V load output interface for rendering conductive said main contact point of said battery load control contactor to said DC110V load output interface.
5. The control power supply system of claim 4, wherein the control power switching assembly further has a car battery interface for receiving the 110V current from a car battery.
6. The control power supply system of claim 5, wherein the cabin battery interface is electrically connected between the second diode and the DC110V load output interface.
7. The control power supply system of claim 6, wherein the control power switching assembly is provided with a third diode for rendering the car battery interface conductive to a 110 vdc power supply circuit of the AC/DC110V module assembly.
8. The control power system of any one of claims 1 to 7, having a load power conversion assembly having a DC110V input interface, the load power conversion assembly being arranged to convert 110 VDC received from the AC/DC110V module assembly for use by a load.
9. The control power system of claim 8, wherein the load power conversion assembly has a DC/AC module and a DC/DC module, wherein the DC/AC module is configured to convert 110 vdc power to AC power and provide the AC power to the AC230V load output interface, and wherein the DC/DC module is configured to convert 110 vdc power to DC power and provide the DC power to the DC24V load output interface.
10. The control power system according to any one of claims 1 to 7, wherein the control power system has a monitoring module component for monitoring, displaying and managing the control power system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137364.9A CN110970989A (en) | 2018-09-28 | 2018-09-28 | Control power supply system for electric locomotive |
| PCT/CN2018/113794 WO2020062441A1 (en) | 2018-09-28 | 2018-11-02 | Control power supply system used for electronic locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137364.9A CN110970989A (en) | 2018-09-28 | 2018-09-28 | Control power supply system for electric locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN110970989A true CN110970989A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811137364.9A Pending CN110970989A (en) | 2018-09-28 | 2018-09-28 | Control power supply system for electric locomotive |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110970989A (en) |
| WO (1) | WO2020062441A1 (en) |
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| CN201240275Y (en) * | 2008-07-15 | 2009-05-20 | 浏阳中铁机电有限公司 | 110V high frequency switch power supply cabinet for AC transmission electric locomotive |
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| CN102386662B (en) * | 2011-12-08 | 2013-10-09 | 南车株洲电力机车有限公司 | Charging device for storage battery of electric locomotive and charging method |
| CN203522292U (en) * | 2013-10-31 | 2014-04-02 | 株洲高新技术产业开发区壹星科技有限公司 | Control power supply cabinet for railway vehicle lithium battery energy storage system |
| JP6511224B2 (en) * | 2014-04-23 | 2019-05-15 | 日立オートモティブシステムズ株式会社 | Power supply |
| KR101936462B1 (en) * | 2016-08-12 | 2019-01-08 | 현대자동차주식회사 | Battery charger for an electric vehicle |
-
2018
- 2018-09-28 CN CN201811137364.9A patent/CN110970989A/en active Pending
- 2018-11-02 WO PCT/CN2018/113794 patent/WO2020062441A1/en active Application Filing
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|---|---|---|---|---|
| CN201240275Y (en) * | 2008-07-15 | 2009-05-20 | 浏阳中铁机电有限公司 | 110V high frequency switch power supply cabinet for AC transmission electric locomotive |
| CN202084973U (en) * | 2011-06-13 | 2011-12-21 | 南车株洲电力机车有限公司 | Locomotive charger |
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| WO2020062441A1 (en) | 2020-04-02 |
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