CN103616186B - Test device of electric drive system - Google Patents
Test device of electric drive system Download PDFInfo
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- CN103616186B CN103616186B CN201310642265.7A CN201310642265A CN103616186B CN 103616186 B CN103616186 B CN 103616186B CN 201310642265 A CN201310642265 A CN 201310642265A CN 103616186 B CN103616186 B CN 103616186B
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Abstract
The embodiment of invention discloses a test device of an electric drive system. The test device of the electric drive system comprises the electric drive system, a loading system, a rectification power source, a synchronous gearbox, an operation data measurement device and an upper computer. The electric drive system comprises a traction motor set of a rail traffic vehicle, and a traction frequency converter used for dragging traction motors in the traction motor set at the same time. The loading system comprises a loading motor and a loading frequency converter used for dragging the loading motor. The rectification power source is connected with a power interface of the traction frequency converter. The synchronous gearbox is connected with the traction motor set and the loading motor. The operation data measurement device is connected with the electric drive system. The upper computer is connected with the traction frequency converter, the loading frequency converter, the rectification power source and the operation data measurement device so as to test the whole electric drive system, and therefore the performance test accuracy of the test device of the electric drive system is improved.
Description
Technical field
The present invention relates to track traffic electric drive technical field, more particularly, it relates to a kind of test of power drive system sets
Standby.
Background technology
The power drive system of the rail traffic vehicles powered with 750v/1500v direct current network is included: traction electric machine group and leading
Draw converter, wherein said traction frequency convertor is used for dragging each traction electric machine in described traction electric machine group simultaneously.
Test device of electric drive system for described power drive system is carried out with performance test includes: described traction frequency conversion
Device, the traction electric machine isolated from described traction electric machine group, there is the described direct current network of voltage pulsation for simulation
Regulated power supply and the direct current dynamometer etc. for simulated driving resistance；In process of the test, by acquiring different moulds
Described traction frequency convertor under plan operating mode and the service data of described traction electric machine, you can for testing the property of described power drive system
It is provided that reference frame.
But, it is limited to above-mentioned testing equipment and once can be only done the test that separate unit traction frequency convertor configures separate unit traction electric machine
Work, and the complete vehicle test to described power drive system cannot be realized, can not highly reduce the reality of described power drive system
Structure, therefore has that performance measuring accuracy is relatively low.
Content of the invention
In view of this, the present invention provides a kind of test device of electric drive system, whole to described power drive system to realize
Car is tested, thus improving the performance test precision of described test device of electric drive system.
A kind of test device of electric drive system, comprising:
Power drive system, the traction electric machine group including rail traffic vehicles and for dragging in described traction electric machine group simultaneously
Each traction electric machine traction frequency convertor；
Loading system, the loading and frequency conversion device including loading motor with for dragging described loading motor；
The rectifier power source being connected with the power interface of described traction frequency convertor；
Connect the synchronous gear box of described traction electric machine group and described loading motor；
The service data measurement apparatus being connected with described power drive system；
And survey with described traction frequency convertor, described loading and frequency conversion device, described rectifier power source and described service data respectively
The host computer that amount device is connected.
Wherein, described rectifier power source includes multiple rectifier power source units, and each described rectifier power source unit is respectively provided with default
VD.
Wherein, described loading motor is ac dynamometer.
Alternatively, the power interface of described rectifier power source is connected with the power interface of described loading and frequency conversion device.
Alternatively, described test device of electric drive system also includes: outfan is connect with the power supply of described rectifier power source respectively
The alternating current power supply input cabinet that the power interface of mouth and described loading and frequency conversion device is connected；Described alternating current power supply inputs the input of cabinet
Termination AC network.
Alternatively, described test device of electric drive system also includes the converter choosing being connected with described traction frequency convertor
Part；Wherein said converter option includes brake chopper and braking resistor.
Wherein, described loading and frequency conversion device is Direct Torque Control universal frequency converter.
Wherein, described service data measurement apparatus include: with turning of the quantity such as the traction electric machine in described traction electric machine group
Square speed probe；Wherein, each described torque rotary speed sensor is installed on the output shaft of a described traction electric machine.
Wherein, described service data measurement apparatus include: respectively with each described traction electric machine and described traction frequency convertor
The frequency-converter power analyser being connected.
Wherein, described service data measurement apparatus include: respectively with each described traction electric machine and described traction frequency convertor
The temperature sensor being connected.
It can be seen from above-mentioned technical scheme that, the embodiment of the present invention is using rectifier power source and loading system come analog orbit
The actual operating mode of vehicular traffic；Configure the whole traction electric machines in traction electric machine group using separate unit traction frequency convertor to enter simultaneously
Row test, and using the synchronous gear box being connected between described traction electric machine group and loading motor Lai synchronous described traction electric machine
The output speed of each traction electric machine in group, thus height reduces the actual knot of the power drive system of rail traffic vehicles
Structure；Thus, by measuring the service data of the described traction frequency convertor and described traction electric machine group obtaining under different simulated conditions,
Can achieve the car load test of the described power drive system under difference simulated condition, improve described test device of electric drive system
Performance test precision.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of test device of electric drive system structural representation disclosed in the embodiment of the present invention one；
Fig. 2 is the running velocity curve synoptic diagram of a certain rail traffic vehicles disclosed in the embodiment of the present invention one；
Fig. 3 is the embodiment of the present invention two another test device of electric drive system structural representation disclosed.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention one discloses a kind of test device of electric drive system, to realize to described electric drive
The complete vehicle test of system, thus improve the performance test precision of described test device of electric drive system, comprising:
Power drive system, the traction electric machine group 102 including rail traffic vehicles and for simultaneously drag traction electric machine group 102
In each traction electric machine traction frequency convertor 101；
Loading system, the loading and frequency conversion device 201 including loading motor 202 with for dragging loading motor 202；
The rectifier power source 300 being connected with the power interface of traction frequency convertor 101；
Connect the synchronous gear box 400 of traction electric machine group 102 and loading motor 202；
The service data measurement apparatus (not shown) being connected with described power drive system, is driven for measuring described electricity
The service data of dynamic system；
And measure dress with traction frequency convertor 101, loading and frequency conversion device 201, rectifier power source 300 and described service data respectively
Put connected host computer (not shown).
The present embodiment one to be modeled as, with rectifier power source 300, the direct current network that described rail traffic vehicles are powered, in test
During, regulate and control the output voltage values of rectifier power source 300 using the associated control signal of described host computer output, you can simulation
Obtain the direct current network fluctuating, thus truly reducing the spread of voltage phenomenon that described AC network exists；
Meanwhile, drag loading motor 202 using loading and frequency conversion device 201, to simulate described rail traffic vehicles running
In the car resistance that runs into, wherein said car resistance includes datum drag, circuit resistance, starting reactance and running resistance etc.；
In process of the test, using described host computer output associated control signal come the igbt within controlled loading converter 201
The cut-offfing of (insulated gate bipolar transistor, insulated gate bipolar transistor), you can regulation and control loading and frequency conversion
The voltage of the out-put supply of device 201 and frequency, and drag loading motor 202 reach needs running status, be described electric drive
System carries out dynamic load, thus truly reducing the dynamic car resistance running in driving conditions；
Thus, the host computer described in the present embodiment one is by exporting for regulating and controlling rectifier power source 300 to rectifier power source 300
The control signal of output voltage, the control cut-off for the igbt regulating and controlling within loading and frequency conversion device 202 is exported to loading and frequency conversion device 201
Signal processed, you can realize and/or car resistance fluctuation unstable to the electrical network running in described rail traffic vehicles running
Deng the simulation of different operating modes, the performance test work for described power drive system provides indispensable rail traffic vehicles dry run
Operating mode.
Practical structures in view of the power drive system of rail traffic vehicles include: traction electric machine group 102 and traction frequency conversion
Each traction electric machine in device 101, and traction electric machine group 102 remains synchronous operation；Traction frequency convertor 101 is used for dragging simultaneously
Each traction electric machine in dynamic traction electric machine group 102；It is therefore true and the power drive system of height reduction rail traffic vehicles
Practical structures, the present embodiment one with separate unit traction frequency convertor 101 configure traction electric machine group 102 in whole traction electric machines carries out
Test, and using the synchronous gear box 400 being connected between traction electric machine group 102 and loading motor 202 come sync pulling motor
The output speed of each traction electric machine in group 102, is allowed to remain synchronous operation state；Thus efficiently solving existing
Test device of electric drive system is because cannot the practical structures of power drive system described in full backup and the performance test precision that causes
Relatively low problem；
Host computer described in the present embodiment one can be by exporting for regulating and controlling loading and frequency conversion device 201 to loading and frequency conversion device 201
The control signal that internal igbt cut-offs, to drive described power drive system to enter different operational modes, is directed to described afterwards
The service data that service data measurement apparatus upload is analyzed processing, you can determines and obtains different rail traffic vehicles simulation fortune
The running status of the described power drive system under row operating mode, the performance for measuring described power drive system provides reference frame.
Further, since existing test device of electric drive system is once only capable of for the configuration separate unit traction of separate unit traction frequency convertor
Motor is tested it is therefore desirable to test of many times just can obtain the service data of the whole traction electric machines in traction electric machine group 102,
Test period is longer, and the present embodiment one only needs experimentation to can get the operation number of whole described traction electric machines
According to therefore substantially reducing the test period, improve test efficiency.
Specifically, in process of the test, the present embodiment one is mainly used in obtaining in real time and works in traction mode, coasting successively
The service data of the described power drive system under pattern and electric braking pattern, wherein；
Under described traction mode, the synchronized gear-box of output 400 of described power drive system passes to be in and sends out
The described loading system of electricity condition, and in this mode, it is defeated that described PC control traction electric machine group 102 carries out constant moment of force respectively
Go out, constant power output and natural characteristic export；Under described coasting pattern, described power drive system does not do work, and described loading is
System keeps generating state (i.e. stress state), traction electric machine group 102 is in free deceleration regime；In described electric braking pattern
Under, described loading system simulates dynamic car resistance electric operation, and described power drive system is in generating state, to simulate
The feedback to regeneration energy for the described power drive system, and in this mode, described PC control traction electric machine group 102 is entered respectively
The output of row natural characteristic, constant power output and constant moment of force output；
Afterwards, the described power drive system that described host computer obtains and uploads according to described service data measurement apparatus each
Item service data is compared one by one as assessment foundation, the gross data of the every operational factor being provided with manufacturer, you can point
Analysis obtains described electrically driven (operated) performance level；For example, Fig. 2 is the vehicle operation speed of a certain rail traffic vehicles that manufacturer provides
Write music line chart, described host computer, according to the rotary speed data of the traction electric machine group 102 obtaining, is calculated corresponding vehicle and runs speed
Degree, then compare with the vehicle speed data shown in Fig. 2, you can obtain a performance evaluation result of described power drive system.
By foregoing description as can be seen that the present embodiment one using rectifier power source 300 and loading system come analog orbit traffic
The actual operating mode of vehicle；Utilize separate unit traction frequency convertor 101 to configure the whole traction electric machines in traction electric machine group 102 simultaneously
Tested, and using the synchronous gear box 400 being connected between traction electric machine group 102 and loading motor 202 come sync pulling
The output speed of each traction electric machine in group of motors 102, thus height reduces the power drive system of rail traffic vehicles
Practical structures；Thus, by measuring the operation of the traction frequency convertor 101 and traction electric machine group 102 obtaining under different simulated conditions
Data, you can realize the car load test of the described power drive system under different simulated conditions, improves described power drive system test
The performance test precision of equipment.
Based on embodiment one, the embodiment of the present invention two discloses another test device of electric drive system, to realize to institute
State the complete vehicle test of power drive system, thus improving the performance test precision of described test device of electric drive system, referring to Fig. 2,
Including:
Power drive system including traction frequency convertor 101 and traction electric machine group 102；Become including loading motor 202 and loading
The loading system of frequency device 201；Rectifier power source 300；Synchronous gear box 400；(in figure is not shown for service data measurement apparatus and host computer
Go out)；
Wherein, rectifier power source 300 includes multiple rectifier power source units, and each described rectifier power source unit be respectively provided with default
VD；
The output of itself can only slowly be changed in view of the regulated power supply being limited to existing test device of electric drive system employing
Voltage, thus cannot be to the significantly power network fluctuation operating mode simulation such as the voltage jump of direct current network or interruption；Thus this reality
Apply example two and adopt the rectifier power source of combining form as rectifier power source 300, the direct current output electricity of each described rectifier power source unit
Pressure can be set as 600v, 750v, 900v, 1200v, 1500v and 1800v etc. successively, to realize to voltage output value as 750v/
Simulation under the operating modes such as power network fluctuation, mutation, interruption for the direct current network of 1500v.
Wherein, loading motor 202 can adopt ac dynamometer；
Moment variations in view of direct current dynamometer are to be achieved according to its exciting current of regulation and control, and too fast regulation is described
Exciting current then can bring surge current to described direct current dynamometer so that motor overload even burns, therefore existing electric drive
The direct current dynamometer that system test equipment adopts only enables Slow loading, and described car resistance cannot be fluctuated widely
Operating mode is simulated, and adopts ac dynamometer as loading motor 202 by this present embodiment two, by changing loading and frequency conversion device
The voltage of 201 out-put supply and frequency, to change stress state, obtain the driving fluctuated widely with safe and reliable simulation
Resistance；
The control mode of described ac dynamometer can adopt Direct Torque Control, corresponding, and loading and frequency conversion device 201 is using straight
Connect direct torque universal frequency converter, to improve response speed and the control accuracy of loading motor 202, but do not limit to.
Wherein, the front-end power power supply of rectifier power source 300 and loading and frequency conversion device 201 can adopt the power frequency of 50hz/400v to hand over
Stream electrical network, but do not limit to.Additionally, for realizing the power supply protection to rectifier power source 300 and loading and frequency conversion device 201, described electricity drives
Dynamic system test equipment may also include alternating current power supply input cabinet 500, and specifically, alternating current power supply inputs the input termination institute of cabinet 500
State industrial frequency AC electrical network, outfan and connect the power interface of rectifier power source 300 and the power interface of loading and frequency conversion device 201 respectively；
Alternating current power supply input cabinet 500 is internally provided with the electrical equipment such as route protection chopper and disjunction catalyst, can cut off event in time
Barrier circuit, the total input-wire power supply to described test device of electric drive system are protected.
Additionally, preferably, the power interface of rectifier power source 300 is also connected with the power interface of loading and frequency conversion device 201.
Thus, when described loading system is in generating state, the AC energy that it generates can feed back to loading and frequency conversion device
201 power interface, and enter into the power interface of rectifier power source 300 and be powered for described power drive system；For example, work as institute
When stating power drive system and working in traction mode, described test device of electric drive system defines a closed loop main circuit cyclic system
System, described power drive system and described loading system are respectively at electronic and generating state, and energy consumes each other, to described power frequency
The power consumption that AC network provides is minimum, has saved electric energy.
Additionally, preferably, described test device of electric drive system be may also include that and is connected with traction frequency convertor 101
Converter option 600, wherein converter option 600 include brake chopper and braking resistor.
Specifically, when described power drive system works in electric braking pattern, described power drive system is in generating state,
The back electrical energy sending can be returned the power interface of traction frequency convertor 101, now need using described brake chopper and system
Galvanic electricity resistance carries out the consumption of energy, and to suppress, the input voltage of traction frequency convertor 101 is too high, ensure traction frequency convertor 101 is permitting
Reliability service in the voltage range permitted.
Wherein, described service data measurement apparatus specifically may include: and the quantity such as the traction electric machine in traction electric machine group 102
Torque rotary speed sensor 700, be connected with each described traction electric machine and traction frequency convertor 101 respectively frequency-converter power analysis
Instrument (not shown) and the temperature sensor (figure being connected with each described traction electric machine and traction frequency convertor 101 respectively
Not shown in)；Wherein:
Each described torque rotary speed sensor is installed on the output shaft of a described traction electric machine, for measuring correspondence
The output speed of described traction electric machine and output torque；
Described frequency-converter power analyser passes through to gather the voltage x current sampled value of corresponding device, and process obtains described correspondence and sets
Standby voltage effective value, current effective value, fundamental voltage, fundamental current, harmonic voltage, harmonic current, active power, fundamental wave work(
The multiple parameters such as rate, harmonic power.
Described temperature sensor is used for measuring the running temperature of corresponding device.
From above statement, the present embodiment two adopts the rectifier power source of combining form as rectifier power source, using exchange
Dynamometer machine, as loading motor, improves the Work condition analogue level of rail traffic vehicles, thus further increasing electric drive trains
The performance test precision of system testing equipment；Additionally, the present embodiment two also has being become with loading using the power interface of rectifier power source
The power interface of frequency device is connected, thus realizing other multiple advantages such as recycle of energy.
In sum, the embodiment of the present invention is entered with the whole traction electric machines in separate unit traction frequency convertor configuration traction electric machine group
Row test, and using the synchronous gear box being connected between described traction electric machine group and loading motor Lai synchronous described traction electric machine
The output speed of each traction electric machine in group, thus height reduces the actual knot of the power drive system of rail traffic vehicles
Structure；Simulate the operating condition of described rail traffic vehicles using rectifier power source and loading system simultaneously；From there through measuring
Described traction frequency convertor under different simulated conditions and the service data of described traction electric machine group, you can realize different simulation works
The car load test of the described power drive system under condition, improves the performance test precision of described test device of electric drive system.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized in the case of the spirit or scope without departing from the embodiment of the present invention in other embodiments.Therefore,
The embodiment of the present invention is not intended to be limited to the embodiments shown herein, and be to fit to principles disclosed herein and
The consistent scope the widest of features of novelty.
Claims (9)
1. a kind of test device of electric drive system is it is characterised in that include:
Power drive system, the traction electric machine group including rail traffic vehicles and each in described traction electric machine group for dragging simultaneously
The traction frequency convertor of platform traction electric machine；
Loading system, the loading and frequency conversion device including loading motor with for dragging described loading motor；
The rectifier power source being connected with the power interface of described traction frequency convertor；Wherein, described rectifier power source includes: multiple rectified currents
Source unit, wherein:
Each described rectifier power source unit is respectively provided with default VD；
Connect the synchronous gear box of described traction electric machine group and described loading motor；
The service data measurement apparatus being connected with described power drive system；
And measure dress with described traction frequency convertor, described loading and frequency conversion device, described rectifier power source and described service data respectively
Put connected host computer.
2. test device of electric drive system according to claim 1 is it is characterised in that described loading motor is exchange measurement of power
Machine.
3. test device of electric drive system according to claim 2 is it is characterised in that the power interface of described rectifier power source
It is connected with the power interface of described loading and frequency conversion device.
4. the test device of electric drive system according to Claims 2 or 3 is it is characterised in that described power drive system is tested
Equipment also includes: outfan is connected with the power interface of described rectifier power source and the power interface of described loading and frequency conversion device respectively
The alternating current power supply input cabinet connecing；
Described alternating current power supply inputs the input termination AC network of cabinet.
5. test device of electric drive system according to claim 1 is it is characterised in that described test device of electric drive system
Also include: the converter option being connected with described traction frequency convertor；
Wherein, described converter option includes brake chopper and braking resistor.
6. test device of electric drive system according to claim 1 is it is characterised in that described loading and frequency conversion device is directly to turn
Square controls universal frequency converter.
7. test device of electric drive system according to claim 1 is it is characterised in that described service data measurement apparatus bag
Include: the torque rotary speed sensor with quantity such as the traction electric machines in described traction electric machine group；
Wherein, each described torque rotary speed sensor is installed on the output shaft of a described traction electric machine.
8. test device of electric drive system according to claim 1 is it is characterised in that described service data measurement apparatus bag
Include: the frequency-converter power analyser being connected with each described traction electric machine and described traction frequency convertor respectively.
9. test device of electric drive system according to claim 1 is it is characterised in that described service data measurement apparatus bag
Include: the temperature sensor being connected with each described traction electric machine and described traction frequency convertor respectively.
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| CN104019999A (en) * | 2014-06-18 | 2014-09-03 | 株洲中达特科电子科技有限公司 | Train simulation braking system and train simulation testing system |
| CN104377967A (en) * | 2014-12-12 | 2015-02-25 | 南车株洲电机有限公司 | Motor testing power supply method and device employing transformer and filter |
| CN106154161B (en) * | 2016-08-18 | 2023-05-30 | 广州市卫通安全智能电子有限责任公司 | Traction motor no-load test equipment |
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