CN104935068A - An electric automobile rescue car power supply system ground simulation device - Google Patents
An electric automobile rescue car power supply system ground simulation device Download PDFInfo
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- CN104935068A CN104935068A CN201510391359.0A CN201510391359A CN104935068A CN 104935068 A CN104935068 A CN 104935068A CN 201510391359 A CN201510391359 A CN 201510391359A CN 104935068 A CN104935068 A CN 104935068A
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Abstract
The invention discloses an electric automobile rescue car power supply system ground simulation device comprising an AC asynchronous motor, of which one end is connected to a frequency converter. The other end of the AC asynchronous motor is connected to a rotating shaft. The rotating shaft is connected to the AC synchronous generator through a clutch. An output terminal of the AC synchronous generator is sequentially in series connection to a fuse, a protection circuit, a filter circuit, an AC/DC module and a DC/DC module. An output terminal of the DC/DC module is connected to an energy storage battery and an integrated vehicle-mounted charger through a direct current bus. The energy storage battery is connected to a to-be-charged electric automobile through a secondary pressure regulating module. The energy storage battery is connected to the integrated vehicle-mounted charger through an inversion module. An input terminal of the AC/DC module is connected to a commercial power through an electric switch. The electric automobile rescue car power supply system ground simulation device of the invention can realistically simulate a power supply system of an electric automobile rescue car, so that convenience is provided for optimization carried out on the power supply system of the electric automobile rescue car in the future so as to improve the rescue capability and efficiency.
Description
Technical field
The invention belongs to electric automobile emergency management and rescue field, be specifically related to a kind of electric automobile relief car electric power system ground simulator.
Background technology
Electric automobile belongs to emerging energy car, but its use exists certain defect, and electric automobile in use cannot may travel because not having electricity, and the neighbouring device not supplying charging electric vehicle, just need this time to use electric automobile relief car.The research of existing electric automobile relief car is in the initial stage, therefore needs the various aspects of performance to electric automobile relief car, function furthers investigate.The electric power system of existing electric automobile relief car adopts diesel engine generator usually.Diesel engine generator because of its area occupied large, volume is large, and noise is large, lacks convenience and flexibility, is therefore not easy to research.We are in the urgent need to a kind of analogue means of electric automobile relief car electric power system, to study electric automobile relief car electric power system, provide technical support for optimizing in the future.
Summary of the invention
The object of the present invention is to provide a kind of electric automobile relief car electric power system ground simulator, the electric power system of this device energy real simulation electric automobile relief car, be convenient to be optimized the electric power system of electric automobile relief car in the future, improve rescue ability and efficiency.
The diesel engine generator adopting existing electric automobile relief car electric power system avoided by this analogue means, thus solves that electric power system volume is excessive, portability is poor, is not easy to the problem studied.
The present invention is achieved in that
A kind of electric automobile relief car electric power system ground simulator, comprises frequency converter, AC asynchronous motor, rotating shaft, synchronous alternating-current generator, protective circuit, filter circuit, AC/DC module, DC/AC module, DC bus, energy-storage battery, integrated vehicle charger;
One end of described AC induction motor is connected with frequency converter, and the other end of AC induction motor is connected with rotating shaft, and described rotating shaft is connected with synchronous alternating-current generator by clutch;
The output of described synchronous alternating-current generator successively with fuse, protective circuit, filter circuit, AC/DC module, DC/DC block coupled in series, the output of described DC/DC module is connected with energy-storage battery, integrated vehicle charger by DC bus;
Described energy-storage battery is connected with electric automobile to be charged by secondary voltage regulating module; Described energy-storage battery is connected with integrated vehicle charger by inversion module, and described integrated vehicle charger is connected with electric automobile to be charged;
The input of described AC/DC module is electrically connected with city by electric switch.
Further scheme is: described protective circuit comprises the first contactor and the second contactor, one end of the normal open switch of the first contactor is connected with fuse, the other end of the normal open switch of the first contactor is connected with one end of preliminary filling resistance, and the other end of preliminary filling resistance is connected with the input of filter circuit; One end of the normal open switch of the second contactor is connected with fuse, and the other end of the normal open switch of the second contactor is connected with the input of filter circuit.
Further scheme is: described filter circuit comprises electromagnetic interface filter, and the output of described electromagnetic interface filter is connected with LC filter.
Further scheme is: described AC/DC module comprises ten two-phase self coupling rectifier transformers, and the output of described ten two-phase self coupling rectifier transformers is connected with the first rectifier bridge, the second rectifier bridge respectively; First output of the first rectifier bridge is connected with the first output of the second rectifier bridge by inductance L 4, and the second output of the first rectifier bridge is connected with the second output of the second rectifier bridge by inductance L 5, and inductance L 4 is connected with inductance L 5 by filter capacitor C4.
Further scheme is: described DC/DC module comprises the first power switch V1 and the second power switch V2 that are connected with filter capacitor C4 one end, first power switch V1 is connected with one end of inductance L 6, second power switch V2 is connected with one end of inductance L 7, the other end of inductance L 6 is connected with the other end of inductance L 7, and one end of inductance L 7 is connected with the other end of filter capacitor C4 by diode D2; One end of inductance L 6 is connected with the other end of filter capacitor C4 by diode D1; The other end of filter capacitor C4 is connected with DC bus with the other end of inductance L 7.
In the present invention, rotating shaft, the first contactor, the second contactor, fuse, three-phase mains access plug are placed on a support.The present invention is provided with clutch, manually can stop unwanted time.Be equal to the Diesel engine of emergency break down lorry by the AC asynchronous motor of Frequency Converter Control, synchronous alternating-current generator is equal to vehicle-mounted axle power takeoff generator.The present invention's Frequency Converter Control AC asynchronous motor simulated automotive engine, can the start and stop of dynamic analog relief car, acceleration, the dynamic process of electric power system under the different speed of a motor vehicle of deceleration.DC bus is provided with energy-storage battery, integrated vehicle charger, the electrical outlets of other mobile units and interface.
In the present invention, the interchange of electric power system input has two kinds of modes, a kind of diesel engine generator being synchronous alternating-current generator and replacing former relief car and carry, the output of synchronous alternating-current generator as interchange input, mainly as a rescue point power supply; The interchange of another electric power system is input as civil power input, and owing to being generally not easy to obtain civil power input at emergency place, therefore, civil power input is for general on before emergency break down lorry rolls rescue station away from charges to the energy-storage battery on relief car.
In the present invention, inversion module is configured with energy-storage battery access interface, multichannel AC output port, and secondary voltage regulating module is configured with energy-storage battery access interface, multi-channel DC output port; The output of energy-storage battery is connected with the energy-storage battery access interface of inversion module, secondary voltage regulating module respectively; The multichannel AC output port of inversion module is connected with electric automobile to be charged by integrated vehicle charger, and the multi-channel DC output port of secondary voltage regulating module is connected with electric automobile to be charged.
Advantage of the present invention is:
1, the invention provides a kind of at the experimental provision of lab simulation emergency break down lorry electric power system, research electric automobile relief car electric power system can being convenient to, being convenient to be optimized the electric power system of electric automobile relief car, to improve rescue ability and efficiency;
2, by Frequency Converter Control ac three-phase asynchronous motor, can electric power system stability under the different speed of a motor vehicle such as the start and stop of dynamic analog emergency break down lorry, acceleration, deceleration, make the present invention closer to actual conditions, there is good researching value;
3, clutch is housed, real simulation emergency break down lorry electric power system can use during generator and directly manually stop, having saved fuel;
4, avoid the diesel engine generator adopting existing electric automobile relief car electric power system, thus solve that electric power system volume is excessive, portability is poor, be not easy to the problem studied.
Accompanying drawing explanation
Fig. 1 is this basic electrical structure overall schematic;
Fig. 2 is the structural representation of power generation part;
Fig. 3 is the circuit connection diagram of protective circuit, filter circuit, rectification circuit, AC/DC module, DC/DC module.
In figure: 1, frequency converter, 2, AC induction motor, 3, rotating shaft, 4, clutch, 5, synchronous alternating-current generator.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Shown in Fig. 1-Fig. 3, a kind of electric automobile relief car electric power system ground simulator, comprises frequency converter 1, AC asynchronous motor 2, rotating shaft 3, synchronous alternating-current generator 5, protective circuit, filter circuit, AC/DC module, DC/AC(Buck) module, DC bus, energy-storage battery, integrated vehicle charger;
One end of described AC induction motor 2 is connected with frequency converter 1, and the other end of AC induction motor 2 is connected with rotating shaft 3, and described rotating shaft 3 is connected with synchronous alternating-current generator 5 by clutch 4;
The output of described synchronous alternating-current generator successively with fuse, protective circuit, filter circuit, AC/DC module, DC/DC block coupled in series, the output of described DC/DC module is connected with energy-storage battery, integrated vehicle charger, other vehicle-mounted loads by DC bus;
Described energy-storage battery is connected with electric automobile to be charged by secondary voltage regulating module; Described energy-storage battery is connected with integrated vehicle charger by inversion module, and described integrated vehicle charger is connected with electric automobile to be charged;
The input of described AC/DC module is electrically connected with city by electric switch;
Described protective circuit comprises the first contactor and the second contactor, one end of the normal open switch of the first contactor is connected with fuse, the other end of the normal open switch of the first contactor is connected with one end of preliminary filling resistance, and the other end of preliminary filling resistance is connected with the input of filter circuit; One end of the normal open switch of the second contactor is connected with fuse, and the other end of the normal open switch of the second contactor is connected with the input of filter circuit;
Described filter circuit comprises electromagnetic interface filter, and the output of described electromagnetic interface filter is connected with LC filter;
Described AC/DC module comprises ten two-phase self coupling rectifier transformers, and the output of described ten two-phase self coupling rectifier transformers is connected with the first rectifier bridge, the second rectifier bridge respectively; First output of the first rectifier bridge is connected with the first output of the second rectifier bridge by inductance L 4, and the second output of the first rectifier bridge is connected with the second output of the second rectifier bridge by inductance L 5, and inductance L 4 is connected with inductance L 5 by filter capacitor C4;
Described DC/DC module comprises the first power switch V1 and the second power switch V2 that are connected with filter capacitor C4 one end, first power switch V1 is connected with one end of inductance L 6, second power switch V2 is connected with one end of inductance L 7, the other end of inductance L 6 is connected with the other end of inductance L 7, and one end of inductance L 7 is connected with the other end of filter capacitor C4 by diode D2; One end of inductance L 6 is connected with the other end of filter capacitor C4 by diode D1; The other end of filter capacitor C4 is connected with DC bus with the other end of inductance L 7.
Rotating shaft, the first contactor, the second contactor, fuse, three-phase mains access plug are placed on a support.DC bus is provided with energy-storage battery, integrated vehicle charger, the electrical outlets of other mobile units and interface.Inversion module is configured with energy-storage battery access interface, multichannel AC output port, and secondary voltage regulating module is configured with energy-storage battery access interface, multi-channel DC output port; The output of energy-storage battery is connected with the energy-storage battery access interface of inversion module, secondary voltage regulating module respectively; The multichannel AC output port of inversion module is connected with electric automobile to be charged by integrated vehicle charger, and the multi-channel DC output port of secondary voltage regulating module will be connected with band charging electric automobile.
The interchange input of electric power system of the present invention has two kinds of modes, and a kind of is using the output of synchronous alternating-current generator as interchange input, as rescue point power supply; Another interchange sending out electric power system is input as civil power input, and owing to being not easy to obtain civil power input at emergency place, therefore, civil power input is for general on before electric automobile relief car rolls rescue station away from charges to the energy-storage battery on relief car.
In the present invention; first contactor, the second contactor and precharge group R1, R2, R3 are mainly used in charging circuit protection and the precharge of electric automobile relief car, and the LC filter that EMI filtering electrical equipment and LC filter (inductance L 1, inductance L 2, inductance L 3, electric capacity C1, electric capacity C2, electric capacity C3) are formed has filter action.AC/DC module is by 12 pulse phase shifting autotransformers (ten two-phase self coupling rectifier transformers), three-phase uncontrollable rectifier bridge 1(first rectifier bridge), three-phase uncontrollable rectifier bridge 2(second rectifier bridge) and filter inductance L4, filter inductance L5, filter capacitor C4 form, make the alternating current of synchronous alternating-current generator become direct current; DC/DC(Buck) circuit, be applicable to the electric pressure to energy-storage battery charging by decompression transformation, it adopts two power switch pipe V1, V2 and two inductance L 6, L7 to compose in parallel, and adopts stagger parallel connection to export, reduces ripple current.
The invention provides a kind of at the experimental provision of lab simulation emergency break down lorry electric power system, research electric automobile relief car electric power system can being convenient to, being convenient to be optimized the electric power system of electric automobile relief car, to improve rescue ability and efficiency.
The present invention avoids the diesel engine generator adopting existing electric automobile relief car electric power system, thus solves that electric power system volume is excessive, portability is poor, is not easy to the problem studied.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to spirit institute of the present invention the apparent change of extending out or change still be among protection scope of the present invention.
Claims (5)
1. an electric automobile relief car electric power system ground simulator, is characterized in that: comprise frequency converter, AC asynchronous motor, rotating shaft, synchronous alternating-current generator, protective circuit, filter circuit, AC/DC module, DC/AC module, DC bus, energy-storage battery, integrated vehicle charger;
One end of described AC induction motor is connected with frequency converter, and the other end of AC induction motor is connected with rotating shaft, and described rotating shaft is connected with synchronous alternating-current generator by clutch;
The output of described synchronous alternating-current generator successively with fuse, protective circuit, filter circuit, AC/DC module, DC/DC block coupled in series, the output of described DC/DC module is connected with energy-storage battery, integrated vehicle charger by DC bus;
Described energy-storage battery is connected with electric automobile to be charged by secondary voltage regulating module; Described energy-storage battery is connected with integrated vehicle charger by inversion module, and described integrated vehicle charger is connected with electric automobile to be charged;
The input of described AC/DC module is electrically connected with city by electric switch.
2. electric automobile relief car electric power system ground simulator as claimed in claim 1, it is characterized in that: described protective circuit comprises the first contactor and the second contactor, one end of the normal open switch of the first contactor is connected with fuse, the other end of the normal open switch of the first contactor is connected with one end of preliminary filling resistance, and the other end of preliminary filling resistance is connected with the input of filter circuit; One end of the normal open switch of the second contactor is connected with fuse, and the other end of the normal open switch of the second contactor is connected with the input of filter circuit.
3. electric automobile relief car electric power system ground simulator as claimed in claim 1 or 2, it is characterized in that: described filter circuit comprises electromagnetic interface filter, the output of described electromagnetic interface filter is connected with LC filter.
4. electric automobile relief car electric power system ground simulator as claimed in claim 1, it is characterized in that: described AC/DC module comprises ten two-phase self coupling rectifier transformers, the output of described ten two-phase self coupling rectifier transformers is connected with the first rectifier bridge, the second rectifier bridge respectively; First output of the first rectifier bridge is connected with the first output of the second rectifier bridge by inductance L 4, and the second output of the first rectifier bridge is connected with the second output of the second rectifier bridge by inductance L 5, and inductance L 4 is connected with inductance L 5 by filter capacitor C4.
5. electric automobile relief car electric power system ground simulator as claimed in claim 4, it is characterized in that: described DC/DC module comprises the first power switch V1 and the second power switch V2 that are connected with filter capacitor C4 one end, first power switch V1 is connected with one end of inductance L 6, second power switch V2 is connected with one end of inductance L 7, the other end of inductance L 6 is connected with the other end of inductance L 7, and one end of inductance L 7 is connected with the other end of filter capacitor C4 by diode D2; One end of inductance L 6 is connected with the other end of filter capacitor C4 by diode D1; The other end of filter capacitor C4 is connected with DC bus with the other end of inductance L 7.
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| CN201510391359.0A CN104935068A (en) | 2015-07-07 | 2015-07-07 | An electric automobile rescue car power supply system ground simulation device |
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| CN201510391359.0A CN104935068A (en) | 2015-07-07 | 2015-07-07 | An electric automobile rescue car power supply system ground simulation device |
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| CN107046273A (en) * | 2016-02-05 | 2017-08-15 | 威士多公司 | Power system |
| CN109274286A (en) * | 2018-09-30 | 2019-01-25 | 广东亿鼎新能源汽车有限公司 | Applied to the vehicle-mounted two-way inversion system on pure electric automobile |
| CN109818402A (en) * | 2017-11-21 | 2019-05-28 | 北京机电工程研究所 | A kind of vehicular energy system |
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Effective date of registration: 20160419 Address after: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Applicant after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Applicant after: State Grid Hunan Electric Power Company Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Applicant before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute |
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