多相高压无刷直流电动机调速系统研究  

Research on the variable-speed system of multiphase high-voltage BLDCM

作　　者：宋庆国[1] 张晓锋[1] 乔鸣忠[1] 于飞[1] 

机构地区：[1]海军工程大学电气工程系,湖北武汉430033

出　　处：《电机与控制学报》2007年第6期600-603,共4页Electric Machines and Control

摘　　要：针对十二相永磁无刷电动机构建了基于三电平逆变器的调速系统。系统采用转速电流双闭环控制,设计了基于CAN(controller area network)总线技术的主从控制系统,实现四个逆变单元的协调控制,从而保证系统的稳定运行。提出了基于三电平逆变器供电的无刷直流电动机PWM(pulse width modulation)调制算法,该算法不仅较好的实现了电机的控制性能,同时还解决了三电平逆变器电容电压中点平衡问题。Aiming at 12-phase brushless DC motor （BLDCM）, this paper sets up the variable-speed system supplied with three-level inverter. The speed closed-loop and current closed-loop are adopted in this system. By using CAN （controller area netwok） field-bus technology the master-slave control system achieves coupled control of four inverter cells. In this paper a PWM （ pulse with modulation） algorithm of BLDCM supplied with three-level inverter is put forward, which achieves good control function of BLDCM and solves neutral-potential balance problem in three-level inverter.

关 键 词：多相 永磁无刷直流电动机 三电平逆变器 中点平衡 

分 类 号：TM33[电气工程—电机]