感应电动机的Hopf分岔及PI速度调节器的设计  

Hopf Bifurcation and Design of PI Speed Controller in Induction Motors

作　　者：陆益民[1] 张波[2] 毛宗源[1] 

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510640 [2]华南理工大学电力学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2004年第9期6-9,共4页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (5 0 1770 0 9) ;广东省自然科学基金资助项目 (0 116 5 2 )

摘　　要：在感应电动机间接磁场定向控制系统中 ,若转子电阻不能正确估计且PI速度调节器参数设置不当 ,系统可能因出现Hopf分岔而导致振荡 .文中根据Lyapunov稳定性理论分析了Hopf分岔产生的条件 ,推导出对PI速度调节器参数的合理选择具有普适性的依据 .同时讨论了定子电流励磁分量给定信号对分岔条件的影响 .仿真结果证实了理论分析的正确性 .Hopf分岔条件可作为PI速度调节器设计的指导 ,以提高系统的稳定性和可靠性 .In the indirect-field oriented control (IFOC) sys tem of induction motor with poor PI speed controller setting,oscillation may occur due to the existence of Hopf bifurcation if the motor rotor resistance can not be exactly estimated.In this paper,conditions of Hopf bifurcation happening were analyzed according to the Lyapunov stability theory,and principles for proper PI speed controller setting were deduced. Influence of d axis stator current reference on Hopf bifurcation was also discussed.The validity of the above analyses was finally proved by simulation results.The conditions of Hopf bifurcation happening can be used as the guidance for PI speed controller design for the purpose of improving the stability and reliability of IFOC system.

关 键 词：HOPF分岔 感应电动机 间接磁场定向控制 PI速度调节器 

分 类 号：TM301.2[电气工程—电机]