基于双CPU协调控制的SR电动机闭环控制系统设计  

Design of a Closed-loop Switched Reluctance Drive Based on two Micro-Controllers

作　　者：黄运生[1] 宋多米[1] 陈学[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《自动化技术与应用》2008年第3期54-57,共4页Techniques of Automation and Applications

摘　　要：本文针对SR电动机闭环调速控制系统设计中存在的转矩脉动大、机械特性差等问题,详细地分析了SR电动机的工作原理。研究了定角度电压斩波和变角度电流斩波两种控制策略,设计了一个转速电流双闭环的SR电动机调速控制系统,研制了一个基于AT89S52和C8051F120两块单片机协调控制的控制器,并编写了PI调节控制算法程序。实验结果表明,整个SRD调速系统起动转矩大、转矩脉动小、机械特性硬、调速性能优越。The torque pulsation and mechanical features in the closed-loop SRD are analysed, and the control strategies with fixed angle of voltage chopper and with variable angle of current chopper are discussed. A SRD controller based on two micro controllers is proposed. One is AT89S52, and the other is C8051F120. By improving the power-splitting power circuit, the PI comtroller shows a good performance for a 2.2kW, 1500rev/min 8/6 SRM. Experimental results show that the entire SRD system has great starting torque, small torque pulsation, good mechanical features and convenient speed regulation.

关 键 词：SRD 变角度 PI调节器 

分 类 号：TM921.5[电气工程—电力电子与电力传动]