Frequency Conversion Control Module Design for Electric Cars Based on SVPWM

摘要

In order to increase electric cars power efficiency when control frequency conversion, and reduce the interference of high harmonics, we propose a design method of voltage space vector (SVPWM) frequency conversion control module. Based on TMS320LF2407 the PWM signal producing module design, IPM module as the core, we design the inverter circuit and Developed SVPWM real-time motion control program. This program use the manner of segmentation modulation, achieve frequency conversion control a range of 5 ~ 100Hz frequency. Variable frequency speed-governing experiment shows that, The control method can reduce the switching losses, meanwhile suppress the temperature rise.