开关磁阻电机的分数阶终端滑模控制  

Improved terminal sliding mode control strategy of switched reluctance motors based on fractional calculus

作　　者：高洁 王华宇 徐萌 GAO Jie;WANG Hua-yu;XU Meng(College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津300300

出　　处：《电机与控制学报》2022年第2期142-150,共9页Electric Machines and Control

基　　金：国家自然科学基金(51707195);中央高校基本科研业务费(3122014C009)。

摘　　要：针对开关磁阻电机常规滑模控制器的抖振问题,提出一种改进分数阶终端滑模控制器。不同于常规的滑模控制策略,该控制器可以保证系统全局具有较快的收敛速度,并可以显著改善系统的抖振情况。利用分数阶系统稳定性理论和李雅普诺夫稳定性理论分析了该分数阶系统的稳定性和有限时间收敛特性。为了验证提出方法的有效性和实用性,进行了仿真分析与实验验证,结果表明:与常规滑模控制相比,改进的分数阶终端滑模控制器使开关磁阻电机控制系统具有更良好的动态特性,在加速、加载的情况下均具有更加优良的动态性能,且换相过程中转矩脉动更小。In order to solve the chattering problem of switched reluctance motor under conventional sliding mode control,an improved fractional-order terminal sliding mode is proposed.Different from the traditional sliding mode,the improved fractional-order terminal sliding mode could ensure the global convergence speed of the system and reduce the chattering of the system significantly.The stability and finite time convergence characteristics of the system were proved based on the stability theory of fractional order system and Lyapunov method.In order to verify the effectiveness and practicability of the proposed method,simulation analysis and experimental verification were carried out,by comparing improved fractional-order terminal sliding mode control and conventional sliding mode control.Compared with the conventional sliding mode control,the improved fractional order terminal sliding mode controller makes the switched reluctance motor control system have better dynamic characteristics,better dynamic performance under acceleration and loading,and less torque ripple in the commutation process.

关 键 词：开关磁阻电机调速系统 终端滑模控制 分数阶微积分 分数阶系统稳定性理论 李雅普诺夫稳定性理论 抖振 

分 类 号：TM352[电气工程—电机]