Novel automobile motor test power supply
A technology for motor testing and power supply devices, applied in the field of automobile manufacturing, can solve the problems of grid-side current containing a large number of harmonics and low power factor, and achieve the effects of convenient capacity expansion, less power loss, and simplified feedback logic
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[0024] The following further description with reference to the drawings does not limit the scope of the present invention.
[0025] See Figure 1 to Figure 4 As shown, the present invention includes an AC / DC power supply unit, a common DC bus control system, a soft controller system, and a feedback bridge control circuit. The AC / DC power supply unit adopts a parallel mode and an independent control mode without interconnection, and is controlled by a program to the car The motor controller supplies electric energy or absorbs the feedback energy generated when the motor is braking. The discharge and feedback energy conversion time is short, the conversion process is stable, and the voltage ripple is small. The common DC bus control system includes rectifier / feedback unit, common DC bus, and inverter unit. , The feedback unit is divided into two ways: energy feedback through the autotransformer and energy feedback without the autotransformer. The energy feedback through the autotra...
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