Slip ratio control of electric vehicle with single-rate PWM considering driving force

Abstract

The switching loss of the inverter depends on the inverter carrier frequency. Therefore, the high carrier frequency is unfavorable for electric vehicles. However, the low carrier frequency decreases the slip ratio control performance. To achieve the high-speed current response with the low carrier frequency, it is required to consider the inverter dynamics. Then in this paper, we propose a slip ratio control method with single-rate PWM considering driving force with low carrier frequency. Using this method, we can achieve the high responsive slip ratio control. Simulations and experiments are carried out to demonstrate the effectiveness with EVs.