Research on electromagnetic interference characteristics of vehicle-mounted high-voltage electric drive system

This paper analyzes the electromagnetic interference (EMI) source of the electric drive system and its propagation path, theoretically analyzes the electromagnetic interference factors of its output characteristics, and designs and builds a test platform for the high-voltage three-phase line conducted EMI of the electric drive system under complicated working conditions., Studied the influence of factors such as the torque and speed of the motor on the conducted EMI of the high-voltage three-phase line, and provided a theoretical basis for improving the electromagnetic compatibility of the electric drive system of electric vehicles in my country.