摘要
针对感应电机的动态特性,在电机参数未知的前提下,研究了磁链与转速的渐近跟踪特性和整个系统的全局稳定性问题。应用反推技术设计了自适应控制器,对所有参数进行估计,实现了电机对给定信号的输出跟踪控制,保证了整个系统的全局稳定性。系统的转子磁链与转速能渐近跟踪给定的参考信号,仿真结果验证了该控制策略的有效性。
In accordance with properties of the flux linkage dynamic characteristics of induction motor system, the asymptotic tracking and the rotor speed and the global stability of the system have been studied without the priori knowledge of the induction motor＇ s parameters. The backstepping technique is applied in the design of the nonlinear controller and the estimation of the unknown induction motor＇ parameters. The output tracking of the induction motor for the given signals is realized by the proposed nonlinear adaptive controller. The global stability of the system as well as asymptotically track of the rotor flux linkage and the rotor speed of the system for reference signals is guaranteed. The simulation validates the efficiency of the control scheme.
出处
《电机与控制学报》
EI
CSCD
北大核心
2007年第4期375-379,共5页
Electric Machines and Control
基金
国家自然科学基金(60674027)
教育部高等学校博士点基金(20050446001)
关键词
反推技术
感应电机
参数不确定性
非线性自适应控制
backstepping technique
inductor motor
parameters uncertainty
nonlinear adaptive control
