无刷同步电动机智能励磁系统研究  

Research on intelligence excitation system for brushless synchronous motor

作　　者：李辉[1] 杨永立[1] 邹缙[1] 

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081

出　　处：《电子设计工程》2012年第24期114-117,共4页Electronic Design Engineering

摘　　要：针对同步电动机的非线性、参数时变及数学模型的复杂性,单纯的对励磁系统采用PID控制其响应速度慢,动态稳定性较差。提出了采用模糊PID控制,并引入辅助控制环节-偏差控制,通过建立基于MATLAB/Simulink同步电动机无刷励磁系统仿真模型,模拟了同步电动机在负载变化时的运行特性。仿真结果表明:与PID控制方法相比,在功率因数调节中获得了比较理想的动态和静态特性,优越性明显。该励磁系统已在武钢一热轧厂运行,效果良好。The synchronous motor has the nonlinear time-varying parameters and the complexity of mathematical modeL However, the excitation system which takes the measures of PID control has a slow response and poor dynamic stability. Then, fuzzy PID control is introduced in this issue. And this system still includes the auxiliary control links-deviation control. The basis of MATLAB/Simulink on synchronous brushless motor excitation system attributes to the simulation model on the synchronous motor load changes in the run characteristics. The results indicate that the power factor of regulation has the ideal and static state and the obvious advantages compared with the PID control. This excitation system has been used in the hot rolling mill in Wuhan Iron and Steel, and the effect is good.

关 键 词：同步电动机 无刷励磁 模糊PID控制 偏差控制 仿真 

分 类 号：TM341[电气工程—电机]