摘要
当永磁同步电动机(PMSM)工作在某些参数及条件下时会出现混沌现象,这将对系统的安全性和稳定性产生极大的威胁。因此为了消除PMSM系统中的复杂混沌行为,文章提出一种鲁棒自适应滑模控制方法。首先利用滑模控制技术构造了一种时变滑模面,然后在考虑PMSM系统中不确定因素和可能外界干扰的前提下,设计出具有带自适应增益的鲁棒滑模控制律,消除了PMSM系统中的混沌现象,且克服了滑模控制中的抖振,最后通过Lyapunov稳定理论证明了控制律的稳定性,仿真结果中通过与传统滑模控制的比较验证了该控制方法的有效性。
When system parameters falling into a certain area or under some working conditions,the permanent magnet synchronous motor（ PMSM） will appear chaos phenomenon,which threatens the secure and stable operation of drive system. So this paper proposes a robust adaptive sliding mode control strategy aiming at the complex chaotic behavior of PMSM. Using the sliding mode control technique,a time varying surface is constructed. Then an adaptive gain of the robust control lawis established considering uncertainty and disturbance in PMSM. So the phenomenon of chaos in PMSMsystem will be eliminated using proposed controller. The chattering in sliding mode control are also overcome. Finally,stability analysis will be given based on Lyapunov stability theory. Simulation results demonstrate the effectiveness of the proposed adaptive sliding mode control scheme.
出处
《组合机床与自动化加工技术》
北大核心
2016年第8期78-80,84,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(61433004)
关键词
永磁同步电动机
混沌系统
滑模控制
自适应控制
干扰
permanent magnet synchronous motor
chaotic system
sliding mode control
adaptive control
disturbance
