摘要
利用Lyapunov稳定性理论推导出了速度控制律,从而保证了整个过程的渐进稳定。为克服速度控制律受系统未知不确定性上界的影响,减少滑摸抖动,设计了一模糊控制滑模器。整个系统所需的磁通是利用一滑模模型参考自适应(MRAS)速度辨识器来获得。仿真和实验表明,提出的滑模速度控制器在整个控制过程中对系统的不确定性具有较好的鲁棒性。
The adaptive laws of the propcxsed controller are derived in the sense of Lyapunov stability theorem, such that the asymptotic stability of the controlled system can be guaranteed under the occurrence of uncertainties. But the adaptive law' s implement is influenced by the upper bound of the system uncertainties; a fuzzy control is proposed to estimate the upper botmd. The flux of the IM is estimated by the SMAS sliding model estimation. In addition, simulation results are provided to validate the proposed methodology.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2009年第9期84-89,共6页
Journal of Wuhan University of Technology
基金
湖南省教育厅科技项目(06C042)
973项目(2002CB312200)
国家自然科学基金重点项目(60634020)
博士点基金项目(20050533028)
关键词
滑模控制
鲁棒控制
磁场定向控制
速度控制器
感应电机
sliding model control(SMC)
robust control
field oriented control (FOC)
speed control
inductionmotor (IM)