基于无源化的感应电机能量最优控制  

Energy optimized control of induction motors based on passivity theory

作　　者：林飞[1] 刘晓敏[2] 郑琼林[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]华北电力调度局,北京100053

出　　处：《电力自动化设备》2005年第1期28-31,共4页Electric Power Automation Equipment

基　　金：北京交通大学科技基金(2004RC013)

摘　　要：提出了一种考虑运行效率优化的感应电机无源化控制方法。在动态系统无源性的基础上,从能量的角度应用无源化方法设计了感应电机调速系统。利用系统的能量函数作为Lyapunov函数,保证电机的转速和磁链能够渐进跟踪其给定值。根据电机的能量平衡关系,得出使得电机能量损耗最小的转子磁链给定值。仿真结果表明,该控制器具有良好的性能。电机轻载时,损耗明显降低。A passivity-based controller taking account of efficiency optimization for induction motor is proposed. Based on the passivity theory of dynamic system,in which the energy exchange plays a central role,the speed control system of induction motor is designed. The rotor speed and flux converge to the given value asymptotically with the energy function as Lyapunov function. From the energy-balance equation of passive system,the optimal rotor flux is obtained to minimize the energy loss.Simulative results show a perfect performance of drive system,and the power loss is reduced re-markably under light load. This project is supported by Sci. and Tech. Fund of Beijing Jiaotong University(2004RC013).

关 键 词：感应电机 非线性控制 无源化控制 能量优化 

分 类 号：TM346[电气工程—电机]