基于反馈线性化的感应电机H∞鲁棒控制  

H~∞ Control Approach for Induction Motors Based on the Feedback Linearization

作　　者：王勋先[1] 丁刚[1] 韩曾晋[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《控制与决策》1999年第5期413-417,共5页Control and Decision

基　　金：国家教委 211 工程基金

摘　　要：利用 Ｈ ∞控制理论设计鲁棒控制器，以提高感应电机的调速性能。首先分析了当转子电阻和负载转矩未知，转子磁通不可准确观测时，线性化后的感应电机数学模型的形式，得出了转速与磁通子系统间仍存在耦合的结论；然后用 Ｈ ∞鲁棒控制理论设计控制器，同时抑制两个子系统间的耦合影响及参数扰动，并在此基础上设计控制外环镇定跟随性能。仿真结果表明，该方法具有较好的跟随性及抗扰性。The H ∞ control approach is used to improve the performance of the speed regulation of induction motors. the real linearised model of induction motors is analysed, it is concluded that coupling effect still existing between rotor speed and flux subsystems due to the unknown of the values of the rotor resistant, flux and load torque. H ∞ control approach is applied to the linearised system to decrease the coupling effect and the perturbation of the parameters. On the basis of this, servo controller is added to guarantee the servo performance of the closed loop system. The simulation results show the efficient of the approach.

关 键 词：感应电机 鲁棒控制 反馈线性化 H∞控制 

分 类 号：TM346.012[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]