摘要
开关磁阻电机具有严重的非线性及变结构、变参数和转矩脉动大等特点。针对系统稳定特性和实时响应特性的控制能力差,传统固定参数的PI控制难以获得理想的控制性能,目前常用的模糊控制器实质上是一个PD调节器,存在静差,为了克服传统方法的缺点,并降低开关磁阻电机的转矩脉动,提出了基于模糊自整定PID复合控制器的开关磁阻电机直接转矩调速系统。仿真结果表明:模糊自整定PID复合控制器能够明显改善系统的调速性能,克服了模糊控制存在的静差的缺点,并且降低了转矩脉动。从而证明上述方法的正确性,能够提高控制系统的性能。
Switched Reluctance Motor has the characteristics of severe nonlinearity, variable structure, variable parameters and the torque ripple. To overcome those defects and reduce the torque ripple, a strategy of fuzzy self-turning PID control of switched reluctance motor drive system was proposed. Simulation results show that this control-ler can improve the timing property of system evidently, reduce the steady-state error of speed in classical fuzzy con-troller and the torque ripple. The strategy is proved correct and can improve the accuracy of control system.
出处
《计算机仿真》
CSCD
北大核心
2012年第9期178-181,共4页
Computer Simulation
基金
上海市高等学校本科高地建设项目(52-09-302-001)
