基于改进趋近率的感应电机分数阶滑模磁链观测器设计  

Design of fractional order sliding mode flux observer for induction motor based on improved reaching rate

作　　者：余现飞 缪仲翠[1] 张文宾 王志浩 李东亮 YU Xianfei;MIAO Zhongcui;ZHANG Wenbin;WANG Zhihao;LI Dongliang(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《传感器与微系统》2020年第3期98-101,108,共5页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61663022)。

摘　　要：针对高性能感应电机控制中的磁链观测问题,设计了一种基于改进Faln函数趋近律的分数阶积分转子磁链滑模观测器,滑模观测器采用分数阶积分滑模面和改进的Faln函数为趋近函数,并通过该磁链观测器进行了转速估计。仿真试验表明:改进趋近律的分数阶积分滑模观测器有效提高了观测精度和动态响应性能,抑制了滑模观测中的抖振,通过该磁链观测器的速度估计精度较高。Aiming at the problem of flux observation in high performance control of induction motor,a fractional order integral rotor flux sliding mode observer based on the improved law with Faln function is designed.Fractional-order integral sliding surface and improved Faln function are used as approximation function in sliding-mode observers.And rotating speed is estimated through the flux observer.Simulation results show that the fractional order integral sliding mode observer with improved reaching law can effectively improve the observational precision and dynamic response performance.And chattering in sliding mode observations is suppressed,precision of speed estimation through flux observer is high.

关 键 词：感应电机 磁链观测 分数阶滑模观测器 Faln函数 

分 类 号：TM272[一般工业技术—材料科学与工程] TP212[电气工程—电工理论与新技术]