IFOC感应电动机分岔混沌的单双时滞反馈控制  

Bifurcation and the single and double time-delayed feedback control of chaos in IFOC induction motors

作　　者：王东东[1] 陆益民[2] 张波[1] 

机构地区：[1]华南理工大学电力学院,广东广州510641 [2]广西大学电气工程学院,广西南宁530004

出　　处：《电机与控制学报》2014年第10期55-59,67,共6页Electric Machines and Control

基　　金：国家自然科学基金重点项目(50937001)

摘　　要：为了研究间接磁场定向控制感应电动机系统的失稳机理,采用分岔图分析了感应电动机系统的动力学特性以及通往混沌的路径,同时,利用最大李雅普诺夫指数给出了混沌产生的参数区间,从而预测感应电动机系统的不规则振荡行为。混沌现象的产生使得感应电动机系统振荡加剧,为抑制这种不规则振荡现象,在感应电动机系统中加入时滞反馈控制项,利用分岔图分析了时滞反馈控制项对整个感应电动机系统的影响,并从中选取合适的控制参数,使感应电动机系统达到平衡点并进入稳定运行状态,数值仿真分析结果表明加入双时滞反馈项可以使系统过渡过程变短,收敛速度变快,控制效果更优。Aiming at investigating how the indirect field-oriented induction motor loses its stability,the dynamic characteristics and the route into chaos of the induction motor were analyzed through the bifurcation diagram.At the same time,the chaotic parameter intervals were acquired from the largest Lyapunov exponent diagram and so the chaotic oscillations were predicted.The chaotic phenomenon made the irregular oscillations worse in the induction motors.In order to suppress the irregular oscillations the time-delayed feedback were added into the induction motor system.The bifurcation diagram was utilized to ascertain the proper parameter of the control ter.And the induction motors were stabilized into the equilibrium point.The mathematical results show that the double time-delayed feedback shortens the transient process and has better control performance.

关 键 词：感应电动机 间接磁场定向 分岔混沌 时滞反馈 倍周期分岔 

分 类 号：TM346[电气工程—电机]