CN103091566A - Measuring system for traffic load road surface vibration energy piezoelectric generation - Google Patents
- ️Wed May 08 2013
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- CN103091566A CN103091566A CN2013100412721A CN201310041272A CN103091566A CN 103091566 A CN103091566 A CN 103091566A CN 2013100412721 A CN2013100412721 A CN 2013100412721A CN 201310041272 A CN201310041272 A CN 201310041272A CN 103091566 A CN103091566 A CN 103091566A Authority
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- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000010248 power generation Methods 0.000 claims abstract 4
- 238000003306 harvesting Methods 0.000 claims abstract 2
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000004441 surface measurement Methods 0.000 claims 1
- 230000026683 transduction Effects 0.000 claims 1
- 238000010361 transduction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000009897 systematic effect Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 5
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- 230000008859 change Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明公开了一种行车荷载作用下路面振动能量压电发电的测量系统，该测量系统包括设置于路面的压电换能单元、控制总模块和测量总模块，所述压电换能单元将路面振动能转化为电能；由控制总模块对行驶车辆进行速度调整和载重施加，并对输出电功率进行电参数调整；由测量总模块对车辆的速度和载重、路面的应力和变形、压电换能单元所俘获的交流电的电流和电压以及变换后的电压和电流进行测量；所产生的电能可作为一种电力供应加以存储和利用。通过上述方式，本发明能够为系统研究路面压电俘能技术的机理、技术的应用和推广提供了条件，具有较高的学术价值和社会价值。
The invention discloses a measurement system for piezoelectric power generation of road surface vibration energy under the action of driving load. The measurement system includes a piezoelectric energy conversion unit arranged on the road surface, a control module and a measurement module. The vibration energy of the road surface is converted into electric energy; the speed adjustment and load application of the driving vehicle are carried out by the control module, and the electrical parameters of the output electric power are adjusted; the speed and load of the vehicle, the stress and deformation of the road surface, and the piezoelectric conversion The current and voltage of the alternating current captured by the energy unit and the transformed voltage and current are measured; the generated electrical energy can be stored and utilized as a power supply. Through the above method, the present invention can provide conditions for the systematic research on the mechanism, application and promotion of the piezoelectric energy harvesting technology on the road surface, and has high academic value and social value.
Description
Technical field
The present invention relates to environmental energy and capture the field, particularly relate to a kind of traffic load road vibration energy piezo-electric generating measuring system.
Background technology
Along with the energy service efficiency being reached to clean environment and protecting improving constantly of requiring, developing environment friendly and pollution-free novel energy more and more becomes one of heat subject.The vehicle that travels inevitably brings pressure and impact to the road surface, causes inside, the road surface strain and stress of two aspects in length and breadth, and the energy that produces had both produced vibration, noise, had a strong impact on pavement life and surrounding environment.For this part energy is recycled, some system and methods are developed out.The piezoelectric generating device that this wherein utilizes the direct piezo electric effect of piezoelectric to develop, have the outstanding advantages such as the energy efficiency of prisoner is high, energy density large, reliable operation, strong adaptability, pollution-free, cost is low, the performance of extracting energy from ambient vibration or noise is best, become a kind of effective good method, be subject to paying attention to widely.
Chinese patent CN2591264Y has announced a kind of road piezoelectric type Blast Furnace Top Gas Recovery Turbine Unit (TRT).This invention comprises in road surface overlay, its below pit, hole beam in length and breadth and pastes thereon the piezoelectric generating device that contains the multilayer build-up piezoelectric patches.When vehicle crossed the road surface overlay, the pressure that overlay produces deformed the piezoelectric patches on beam, thereby obtained electric energy.This patent thinking is science very; yet the technology that this patent is protected could not organically combine Blast Furnace Top Gas Recovery Turbine Unit (TRT) and pavement structure; will cause the destruction of arriving very much by the road pavement road structure during installation, make this system both can't continuous laying, certain potential safety hazard is also arranged.
Chinese patent CN 200510041604.1 has announced a kind of method and system thereof that utilizes the highway system vibrating energy piezoelectric power generating.This patent is layed in piezo-electric device in the road surface or directly uses piezoelectric as the ingredient on road surface, utilizes the generation of vibration electric energy, and is stored and utilize as electric power supply.This patent organically is combined piezoelectric generating device with pavement structure, has facilitated construction and transformation.
This shows had a lot of data can reference to the piezo-electric generating method of collecting vehicle track vibrational energy and system.But the method and apparatus that the relevant total system that unit, vehicle-road surface-piezoelectric energy-capturing is consisted of is measured does not also have the relevant data can reference.Therefore, this patent has proposed structure traffic load road vibration energy piezo-electric generating measuring system and method.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of traffic load road vibration energy piezo-electric generating measuring system, can for the mechanism of systematic study road surface piezoelectric energy-capturing technology, application and the popularization of technology provide condition, have higher learning value and social value.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the measuring system that road vibration energy piezo-electric generating under a kind of Driving Loading is provided, this measuring system comprises the piezoelectric energy-conversion unit that is arranged at the road surface, controls total module and measure total module, and described piezoelectric energy-conversion unit can be converted into electric energy with road vibration; Total module is carried out the speed adjustment to driving vehicle and load-carrying applies by controlling, and electromotive power output is carried out the electrical quantity adjustment; Measured by the electric current of measuring the alternating current that total module captures the stress on the speed of vehicle and load-carrying, road surface and distortion, piezoelectric energy-conversion unit and the voltage and current after voltage and conversion; The electric energy that produces can be used as a kind of electric power supply and is stored and utilize.
Preferably, the total module of described control comprises that vehicle is controlled submodule and electric power is controlled submodule, is made of change speed motor, loads and power component.Change speed motor is used for controlling the travel speed of vehicle, and loads is used for vehicle is carried out counterweight, and power component is the electric energy of the final output of capable of regulating.
Preferably, the total module of described measurement comprises that vehicle is measured submodule, submodule and electric parameter measurement submodule are measured in the road surface, by speed, power and displacement transducer, and oscillograph and multimeter formation; Speed pickup is used for the actual travel speed of measuring vehicle, load-carrying when the power sensor travels for measuring vehicle and the stress on road surface, displacement transducer is used for measuring the deflection on road surface, oscillograph be used for to be measured the voltage and current of the alternating current that the piezoelectric energy-capturing unit produces, and multimeter is used for measuring galvanic electric current and the voltage after the power converter module converts.
The invention has the beneficial effects as follows: a kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system has the following advantages:
1), native system is simple in structure, be widely used, and can be used for multiple piezoelectric harvester, vehicle, road surface;
2), this method and system can be used for the piezoelectric property of independent measurement piezoelectric harvester;
3), this method also is applicable to monitoring and the detection of road pavement.
Description of drawings
Fig. 1 is the structural representation of a kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system;
Fig. 2 is the function constitution map of the total module of control of a kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system;
Fig. 3 is the function constitution map of the total module of measurement of a kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system;
Fig. 4 is the single piezoelectric harvester structural representation of a kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1 to Fig. 4, the embodiment of the present invention comprises:
Traffic load road vibration energy piezo-electric generating measuring system, this measuring system comprise the piezoelectric energy-conversion unit that is arranged at the road surface, control total module and measure total module,
Control total module and comprise that vehicle is controlled submodule and electric power is controlled submodule, consisted of by change speed motor, loads and power component.Change speed motor is used for controlling the travel speed of vehicle, and loads is used for vehicle is carried out counterweight, and power component is the electric energy of the final output of capable of regulating.
Measure total module and comprise that vehicle is measured submodule, submodule and electric parameter measurement submodule are measured in the road surface, by speed, power and displacement transducer, and oscillograph and multimeter formation; Speed pickup is used for the actual travel speed of measuring vehicle, load-carrying when the power sensor travels for measuring vehicle and the stress on road surface, displacement transducer is used for measuring the deflection on road surface, oscillograph be used for to be measured the voltage and current of the alternating current that the piezoelectric energy-capturing unit produces, and multimeter is used for measuring galvanic electric current and the voltage after the power converter module converts.Power converter comprises rectifier and DC/DC transducer, and adjustment and shift step comprise:
A. switching process, the alternating current that the piezoelectric energy-capturing unit is produced changes direct current into;
B. DC/DC conversion process, the direct current that above-mentioned steps a is produced carries out the conversion of voltage and current.
The piezoelectric energy-conversion unit can be converted into electric energy with road vibration; Total module is carried out the speed adjustment to driving vehicle and load-carrying applies by controlling, and electromotive power output is carried out the electrical quantity adjustment; Measured by the electric current of measuring the alternating current that total module captures the stress on the speed of vehicle and load-carrying, road surface and distortion, piezoelectric energy-conversion unit and the voltage and current after voltage and conversion; The electric energy that produces can be used as a kind of electric power supply and is stored and utilize.
The measuring method of road vibration energy piezo-electric generating under a kind of Driving Loading is characterized in that: comprise the following steps:
A. insert at least one piezoelectric energy-capturing unit in the road surface, be used for receiving the road vibration energy that Vehicle Driving Cycle produces, this piezoelectric energy-capturing unit as actuating medium, and utilizes direct piezo electric effect that vibrational energy is changed into electric energy with piezoelectric; Described piezoelectric energy-capturing unit comprises piezoelectric transducer and middle filling material thereof, and a plurality of piezoelectric harvesters are array in length and breadth, is bonded together with filling material, and formation can be captured the transducing unit of large tracts of land road vibration energy;
Described each piezoelectric transducer has 2 plate electrodes (1), is bonded in respectively the up and down of piezoelectric ceramic piece (3) by adhering with epoxy resin layer (2), and lead-in wire is connected with electrode by welding or conducting resinl connection;
Described piezoelectric ceramic piece can be that monolithic can be also that the multi-layer piezoelectric thin slice forms, and comprises the laminated type piezoelectric stack;
Carrying out series/parallel by lead-in wire between each piezoelectric harvester in described piezoelectric energy-capturing unit connects.Each piezoelectric transducer is connected in series on electricity by lead-in wire and adjuster and DC/DC transducer, through adjustment and conversion after electric energy can access by the mode of serial or parallel connection energy storage device or final user.
B. the electric energy of piezoelectric energy-capturing unit generation is delivered in an adjuster and transducer, electric power is adjusted and conversion;
C. the electric energy after adjustment and conversion is received by energy storage device or final user's use side, and electric energy is stored or utilized.
The technology path of embodiment is: under the effect of vehicle, the inner strain and stress that produces in road surface causes the piezoelectric effect of burying its inner piezoelectric energy-capturing unit underground, produces electric energy.The speed of vehicle and load-carrying are controlled submodule and the control of load-carrying control submodule by the speed of controlling under total module respectively, the speed of vehicle reality and dead weight capacity are measured respectively by speed and the weight measurement submodule measured under total module, and the distortion of inside, road surface and stress are measured respectively by the strain and stress measurement submodule of measuring under total module.Under vehicle different speed and load-carrying effect, the piezoelectric energy-capturing unit that is placed in inside, road surface also produces the electric energy of different sizes.The voltage and current size of the electricity that produces is measured respectively by the voltage and current measurement submodule of measuring in total module.The electricity that produce this moment is alternating current.The alternating current for high voltage, little electric current because the piezoelectric energy-capturing unit produces can not directly use, and needs first the electric energy step-down and the voltage stabilizing that produce to be processed.Therefore, the electricity that produces is connected with the power converter link, carries out rectification and conversion.
Power-converting device comprises the following steps adjustment and the conversion of electric energy: 1) utilize rectifier, the alternating current that piezoelectric is produced becomes direct current; 2) utilize the DC/DC transducer, the direct current that switching process is produced carries out the voltage and current exchange.
In this example, adopt electric energy output end of full-bridge rectifier and piezoelectric energy-capturing unit to be connected, converted direct current to for the alternating current with the piezoelectric energy-capturing unit; The DC/DC transducer is connected with full-bridge rectifier, is used for adjusting the voltage and current of full-bridge rectifier output.
Power is controlled submodule and is connected with the DC/DC transducer, adopt the power control switching device, carry out the reception and registration of control signal instruction, and gather respectively the voltage and current signal of DC/DC converter output terminal with electric current and voltage sensor, export to energy storage device or end user terminal with the PWM form.
A kind of traffic load road vibration of the present invention energy piezo-electric generating measuring system has the following advantages:
1), native system is simple in structure, be widely used, and can be used for multiple piezoelectric harvester, vehicle, road surface;
2), this method and system can be used for the piezoelectric property of independent measurement piezoelectric harvester;
3), this method also is applicable to monitoring and the detection of road pavement.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (3)
1.一种行车荷载作用下路面振动能量压电发电的测量系统，其特征在于：该测量系统包括设置于路面的压电换能单元、控制总模块和测量总模块，所述压电换能单元将路面振动能转化为电能；由控制总模块对行驶车辆进行速度调整和载重施加，并对输出电功率进行电参数调整；由测量总模块对车辆的速度和载重、路面的应力和变形、压电换能单元所俘获的交流电的电流和电压以及变换后的电压和电流进行测量；所产生的电能可作为一种电力供应加以存储和利用。 1. A measurement system for piezoelectric power generation of road surface vibration energy under the action of a driving load, characterized in that: the measurement system includes a piezoelectric transducer unit arranged on the road surface, a total control module and a total measurement module, the piezoelectric transducer The unit converts the vibration energy of the road surface into electric energy; the overall control module adjusts the speed and load of the driving vehicle, and adjusts the electrical parameters of the output electric power; The current and voltage of the alternating current captured by the electric transduction unit and the transformed voltage and current are measured; the generated electric energy can be stored and utilized as a power supply. 2.根据权利要求1所述的行车荷载作用下路面振动能量压电发电的测量系统，其特征在于：所述的控制总模块包括车辆控制子模块和电功率控制子模块，由变速电机、载重物以及功率元件构成，变速电机用于控制车辆的行驶速度，载重物用于对车辆进行配重，功率元件则可调整最终输出的电能。 2. The measurement system for piezoelectric power generation of road surface vibration energy under the action of driving load according to claim 1, characterized in that: the total control module includes a vehicle control submodule and an electric power control submodule, and is composed of a variable speed motor, a load And the composition of power components, the variable speed motor is used to control the driving speed of the vehicle, the load is used to counterweight the vehicle, and the power components can adjust the final output electric energy. 3.根据权利要求1所述的行车荷载作用下路面振动能量压电发电的测量系统，其特征在于：所述的测量总模块包括车辆测量子模块、路面测量子模块和电参数测量子模块，由速度、力和位移传感器，以及示波器和万用表构成；速度传感器用于测量车辆的实际行驶速度，力传感器用于测量车辆行驶时的载重和路面的应力，位移传感器用于测量路面的变形量，示波器用于测量压电俘能单元所产生的交流电的电压和电流，万用表用于测量电力变换模块转换后的直流电的电流和电压。 3. The measurement system for piezoelectric power generation of road surface vibration energy under the action of driving load according to claim 1, characterized in that: the overall measurement module includes a vehicle measurement submodule, a road surface measurement submodule and an electrical parameter measurement submodule, It consists of speed, force and displacement sensors, as well as an oscilloscope and a multimeter; the speed sensor is used to measure the actual driving speed of the vehicle, the force sensor is used to measure the load of the vehicle and the stress of the road surface when the vehicle is running, and the displacement sensor is used to measure the deformation of the road surface. The oscilloscope is used to measure the voltage and current of the alternating current generated by the piezoelectric energy harvesting unit, and the multimeter is used to measure the current and voltage of the direct current converted by the power conversion module.
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| CN103116133A (en) * | 2013-02-03 | 2013-05-22 | 苏州市职业大学 | Traffic load pavement vibration energy piezoelectric power generation measuring method and system thereof |
| CN105910781A (en) * | 2016-04-19 | 2016-08-31 | 长安大学 | Power generation effect simulation testing device for piezoelectric element |
| CN114923846A (en) * | 2022-02-28 | 2022-08-19 | 南京林业大学 | Piezoelectric asphalt mixture and evaluation method of load-piezoelectric-electrothermal conversion thereof |
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Application publication date: 20130508 |