摘要
针对开关磁阻电机(SRM)因严重非线性特性的建模误差引起的转矩脉动较大、速度难以稳定等问题,对开关磁阻电机的控制算法等进行了研究,引入模糊自适应滑模变结构控制,以电流偏差作为开关函数,设计合理的自适应律,采取模糊自适应的智能控制规则调节滑模控制的切换控制增益,削弱抖振,解决了系统不确定性及干扰对控制精度影响的问题,使控制器的设计不依赖于精确模型,进而利用李雅普诺夫定理证明系统的稳定性。在Simulink中建立仿真模型,对方案的有效性进行验证。结果表明:电机在工作转速范围内转矩脉动抑制效果良好,设计的自适应模糊滑模控制器具有优良的控制效果及较强的鲁棒性。
In order to solve the problem of large torque ripple caused by modeling error of the switched reluctance motor(SRM)and the speed that is difficult to stabilize,the control algorithm of the switched reluctance motor was studied,and fuzzy adaptive control was introduced.Sliding mode variable structure control taking the current deviation as the switching function designs a reasonable adaptive law,adopts a fuzzy adaptive intelligent control rule to adjust the switching control gain of the sliding mode control,weakens the chattering,and solves the system uncertainty and existence.The influence of interference on the control precision makes the controller design independent of the exact model,and then it uses Lyapunov theorem to prove the stability of the system.A simulation model is established in Simulink to verify the effectiveness of the proposed scheme.The results show that the torque ripple suppression effect of the motor is good in the working speed range,and the designed adaptive fuzzy sliding mode controller has excellent control effect and strong robustness.
作者
米林
周鹏
谭伟
MI Lin;ZHOU Peng;TAN Wei(Key Laboratory of Advanced Manufacturing and Test Technologies for Automotive Partsof Ministry of Education,Chongqing University of Technology,Chongqing 400054,China)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2018年第12期162-169,共8页
Journal of Chongqing University of Technology：Natural Science
基金
国家自然科学基金资助项目(51305475)
重庆市教育委员会科学技术研究项目(KJ1709231)
关键词
开关磁阻电机
转矩脉动
模糊自适应
滑模控制
鲁棒性
switched reluctance motor(SRM)
torque ripple
fuzzy adaptive
sliding mode control
robustness
作者简介
米林,男,博士,教授,主要从事机电测控方面的研究,E-mail:linmi@cqut.edu.cn。
