电动汽车逐渐成为人们出行的交通工具之一,对技术可靠性和安全性的要求较高。电机控制器是实现电池直流电源向三相交流电源转换的装置,驱动永磁同步电机(PMSM)输出力能。设计了一款基于瑞萨单片机的PMSM控制器,从元器件选型、硬件保护电路原理、PCB布局、控制算法、结构强度和热分析方面展开分析。最后生产控制器样机并搭建试验平台,对PMSM控制器进行了效率特性测试、发电测试和温升测试。试验结果验证了设计方案的合理性。

Electric vehicles were gradually used in people’s daily transportation, and the requirements of their technical reliability and safety were very high. The motor controller was a device that converted the battery DC power supply to the three phase AC power supply, and then drove the permanent magnet synchronous motor (PMSM) of electric vehicles. A PMSM controller based on Renesas microcontroller was designed. Analysis was carried out from the aspects of component selection, hardware protection structure principle, printed circuit board (PCB) layout, control algorithm, structural strength and thermal analysis. Finally, the prototype controller was produced and the experimental platform was built. The efficiency characteristic test, power generation test and temperature rise test were performed on the PMSM controller. The experimental results verified the rationality of the design.

TM 351:U 469.7

贵阳市高新技术产业技计项目(GXCX 2017 012)