A Study on Modeling of High-Frequency Leakage Currents in PWM Inverter Feeding an Induction Motor

유도전동기의 PWM제어와 누설 축전류 발생 모델링에 관한 연구

A PWM inverter with an induction motor often has a problem with a high-frequency leakage current that flows through the distributed electrostatic capacitance from the motor windings to ground. This paper presents an equivalent circuit for high-frequency leakage currents in PWM inverter feeding an induction motor, which forms an LCR series resonant circuit.