Abstract
A study on electromagnetic interference restraining of electrical vehicle motor control system is presented. The reason why the motor control system would generate electromagnetic interference, the propagation ways and the hazard of electromagnetic interference are presented in this paper, through analysis of the structure and control strategy of motor control system. And it takes corresponding technologies to restrain electromagnetic interference, such as the selection of power devices, system grounding, electromagnetic shielding technology, filter isolation technology, mechanism design, and cables reasonable distributing. The results of electromagnetic emission test of electrical vehicle motor control system show that the motor control system designed by electromagnetic compatibility (EMC) technology has good electromagnetic interference restraining performance.
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