电动汽车用永磁同步电机起动过程分析与实现

Analysis and Implementation of Permanent Magnet Synchronous Motor Control Starting Process for Electric Vehicle

为了满足电动汽车的响应时间短、转速无超调、稳态误差小的起动性能要求,对起动过程进行了分析,结合各个阶段的特点,提出了速度环采用自抗扰控制(ADRC)的控制方法。然后在基于模型的算法控制(MMC)平台下,采用基于模型的设计方法完成了基于ADRC的永磁同步电机矢量控制模型的设计和代码自动生成。最后结合试验平台,对电动机的起动过程进行了分析研究。结果表明采用基于ADRC的矢量控制算法,电动机具有良好的起动性能,能够满足电动汽车频繁起停的要求。

To meet the requirements of short response time, no overshoot and lower steady state error, the motor’s starting process was analyzed and studied. Then, the ADRC method of speed loop was proposed combining with the characteristics of each stage. The vector control algorithm based ADRC and the automated code generation were completed by using the model-based design method in the MMC platform. At last, the starting process of motor was analyzed combining with the experimental platform. The results showed that using the vector control algorithm based on ADRC, the motor has better starting performance which could meet the need of the motor’s frequent start-stop.