摘要
永磁无刷直流电动机是航空机电作动器(EM A)实现作动控制的关键部件,而电机控制方式的优劣则是决定航空EM A调速系统性能的重要因素。传统的滑模变结构控制策略由于存在抖振现象,对永磁无刷直流电机的控制精度和稳定性不利。针对航空EM A调速控制精度要求高的特点,将模糊控制和滑模控制相结合,把开关函数及其微分作为输入量,通过模糊推理获得滑模控制的控制量,该控制器既保持了常规模糊控制器的优点,又减弱了滑模控制的抖振现象。仿真及实验表明:该控制器稳定性好,对参数变化有很强的鲁棒性,系统响应速度快,具有较高的控制精度。
Permanent Magnet Brushless DC Motor（BLDCM）is a key sector of Electro-Mechanical Actuators（EMA） in Aircraft,and its control method is an important factor for the performance of EMA.Traditional sliding mode control has its disadvantages for the control precision and stability of BLDCM due to its chattering.To improve the control performance of EMA,fuzzy control and sliding mode control are integrated in this paper.In this controller,switch function and its derivative act as the input of fuzzy controller,and the output is get from the fuzzy illation.By this way,the controller keeps the excellences of fuzzy control and weakens the chattering of sliding mode control.Simulation and experiment results show that the controller is of high performance of stability,robustness under parameter variation as well as preferable response speed and control precision.
出处
《火力与指挥控制》
CSCD
北大核心
2011年第8期64-66,70,共4页
Fire Control & Command Control
