An electric drive system test equipment
A technology of electric drive system and test equipment, which is applied in the direction of railway vehicle testing, etc., can solve the problems of low performance test accuracy and the inability to realize the electric drive system vehicle test, etc., and achieve the effect of improving the performance test accuracy
Active Publication Date: 2017-01-25
株洲中达特科电子科技有限公司
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Problems solved by technology
[0004] However, limited to the above-mentioned test equipment, it can only complete the test of a single traction frequency converter and a single traction motor at a time, but cannot realize the vehicle test of the electric drive system, that is, it cannot highly restore the actual structure of the electric drive system , so there is a problem of low performance test accuracy
Method used
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Embodiment 1
[0045] Based on Embodiment 1, Embodiment 2 of the present invention discloses yet another electric drive system test equipment to realize the vehicle test of the electric drive system, thereby improving the performance test accuracy of the electric drive system test equipment, see figure 2 ,include:
[0046] An electric drive system including a traction frequency converter 101 and a traction motor unit 102; a loading system comprising a loading motor 202 and a loading frequency converter 201; a rectifying power supply 300; a synchronous gearbox 400; an operating data measuring device and an upper computer (not shown in the figure );
[0047] Wherein, the rectifying power supply 300 includes a plurality of rectifying power supply units, and each of the rectifying power supply units has a preset DC output voltage;
[0048] Considering that the adjustable power supply used by the existing electric drive system test equipment can only slowly change its own output voltage, it is ...
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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 [0001] The invention relates to the field of rail transit electric drive technology, and more specifically relates to an electric drive system test equipment. Background technique [0002] The electric drive system of a rail transit vehicle powered by a 750V / 1500V DC grid includes: a traction motor unit and a traction frequency converter, wherein the traction frequency converter is used to simultaneously drive each traction motor in the traction motor unit. [0003] The electric drive system test equipment used to test the performance of the electric drive system includes: the traction frequency converter, a traction motor separated from the traction motor unit, and the DC power supply for simulating voltage fluctuations. The adjustable power supply of the network and the DC dynamometer used to simulate the driving resistance, etc.; during the test, by obtaining the operation data of the traction frequency converter and the traction motor under different simu...
Claims
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IPC IPC(8): G01M17/08
Inventor 李立中黎俊夏宇辉龙永红刘明超
Owner 株洲中达特科电子科技有限公司