新型感应电动机控制器设计与仿真  

Design and Simulation of Flux Observer Controller for New type of Induction Motor

作　　者：罗金盛[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建厦门361021

出　　处：《计算机仿真》2015年第9期237-240,共4页Computer Simulation

基　　金：厦门市科技计划项目(3502Z20111008);华侨大学科研基金(10HZR04)

摘　　要：研究感应电动机控制器优化设计,由于当感应电动机运行过程中的参数发生变化时,磁场定向控制和解析逆控制所实现的解耦线性化遭到破坏,无法实现感应电动机的自适应解耦线性化,造成无法弱化转子磁链与转速之间的耦合,不能进行精确跟踪控制,无法解决感应电动机模型非线性系统设计的难题。提出一种采用非线性正交反馈补偿的新型感应电动机磁链观测器控制器,将新型感应电动机的磁链观测器作为一个控制器,将转子速度以及定子电阻作为时变参数,对检测的定子电压进行测试,通过输出反馈控制器设计令系统干扰输入与系统的干扰输出之间的诱导范数最优,保证感应电动机的解耦线性化,为新型感应电动机磁链观测器控制器的设计提供可靠依据。分析了新型感应电动机的非线性正交反馈补偿磁链观测器控制器算法,求出磁链矢量以及反电势矢量之间的夹角余弦值,对反电势进行平滑操作,解决非线性系统建模问题,完成磁链与反电势正交程度的检测,从而获取适用于新型感应电动机的非线性正交反馈补偿磁链观测器控制器。仿真结果表明,所提磁链观测器控制器具有很高的准确性。A flux observer controller for new type of induction motor is designed based on orthogonal nonlinear feedback compensation. The new flux observer of induction motor is taken as a controller, and the rotor speed and stator resistance as a time-varying parameter. The stator voltage is tested for detection. The output feedback control- ler is designed to optimize the induced norm of disturbance input and output for interference system. The decoupling linearization of induction motor is guaranteed. The flux observer control algorithm of new orthogonal nonlinear feed- back compensation of induction motor is analyzed, the cosine value of the angle between the flux linkage vector and the back EMF vector, the smooth operation is made for the back EMF, and the problem of nonlinear system modeling is solved. The orthogonal degree of the flux and the back EMF is tested, and the flux observer controller of induction motor with new orthogonal nonlinear feedback compensation is implemented. The simulation results show that the pro- posed flux observer controller has high accuracy.

关 键 词：电动机 磁链观测器 控制器 

分 类 号：TP22[自动化与计算机技术—检测技术与自动化装置]