基于滑模控制的异步电机全阶观测器研究  

Study on Full Order Observer Based on Sliding Mode Control for Asynchronous Motor

作　　者：蒋林[1] 刘梁鸿 李坤[1] 张玉翠 JIANG Lin;LIU Lianghong;LI Kun;ZHANG Yucui(School of Electrical Engineering and Information,Southwest Petroleum University,Chengdu 610500,Sichuan,China)

机构地区：[1]西南石油大学电气信息学院,四川成都610500

出　　处：《电气传动》2019年第4期19-22,共4页Electric Drive

基　　金：国家自然科学基金(51607151);四川省教育厅科技项目(13ZB0199)

摘　　要：针对基于全阶观测器的异步电机矢量控制系统的低速稳定运行和宽调速范围等问题,提出了一种基于滑模控制的改进型异步电机全阶观测器方法。该方法利用全阶磁链观测器来估计电机的转速、转子磁链,提高电机低速时的带载能力,并合理设计滑模转速控制器来达到拓宽调速范围的目的,增强系统鲁棒性。最后,基于Matlab搭建系统仿真模型和基于DSP28055搭建了物理实验平台。仿真实验结果表明,所提控制策略拓宽了电机调速范围,提高了低速带载能力,验证了方法的可行性。For the low speed stable operation and widening speed range of the vector control system of asynchronous motor based on the full order observer, an improved full order observer method based on sliding mode control for asynchronous motor was presented. The full order flux observer was used to estimate motor speed and rotor flux and improve the ability of carrying capacity at low speed. Simultaneously, the sliding mode controller was properly designed to widen the range of speed adjustment, as well as enhanced systemic robustness. Finally, the simulation model was built in Matlab,and the physical experiment platform was built in DSP28055. The simulation and experiment results show that the proposed control strategy broadens the speed range of the motor , improves the low speed load capacity, and verifies the feasibility of the method.

关 键 词：异步电机 全阶磁链观测器 矢量控制 电机控制 滑模控制 

分 类 号：TM343[电气工程—电机]