最小磁场存储能量条件下的感应电机定子磁通幅值效率优化  

Passivity-based efficiency optimization control for induction motor based on minimum magnetic energy

作　　者：季筱隆[1] 沈传文[1] 孟永庆[1] 苏彦民[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工电能新技术》2008年第3期26-30,共5页Advanced Technology of Electrical Engineering and Energy

摘　　要：本文借鉴互联和阻尼分配的基于无源性控制器设计的基本思想和设计方法,依据最小磁场能量原则,设计了一种新的转矩跟踪效率优化控制器。由于只针对分解后得到的电气子系统进行最小磁场能量优化和转矩跟踪控制器设计,得到的定子磁通幅值优化律不受转子电阻的影响,因此具有更强的参数鲁棒性。且控制器不需要观测转子侧的系统状态变量,控制律是全局定义的,不存在发散奇点,能够跟踪快速变化的转矩和磁通给定,从而保证了系统的动静态性能。仿真实验结果证实该控制器在保证系统具有良好的动静态性能的同时,能有效地提高感应电机轻载时功率因数,并取得良好的节能效果。Following the idea and approach of interconnection and damping assignment passivity-based controller design, and according to the minimum magnetic energy criterion, a new torque tracking and effficiency-optimizing controller is presented. Because the efficiency optimizing and torque tracking is aimed at the electrical subsystem, the optimizing law of the rotor-flux norm is independent of rotor resistance, then the robustness of the control system is enhanced. Furthermore, because the controller needn＇t the measurements of rotor variables, its control law is defined globally and has no controller singularities, the dynamic and static performances are guaranteed by the fast tracking of torque and rotor-flux norm. The results of simulation validate that the power factor could be improved effectively, and the system has the satisfactory dynamic and static performance still.

关 键 词：互联和阻尼分配 基于无源性的控制 感应电机 效率优化控制 功率因数 磁场能量 

分 类 号：TM301.2[电气工程—电机]