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基于矩阵不等式的永磁同步电机鲁棒H∞控制 预览

Research on Robust H∞ Control of Permanent Magnet Synchronous Motor Based on LMI
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摘要 针对永磁同步电机(PMSM)的鲁棒H∞控制问题,构建了基于dq旋转坐标系的状态空间模型,通过静态解耦控制思想,将强耦合非线性的永磁同步电机模型转化为线性系统。设计了鲁棒H∞控制器,将控制器的求解问题转化为矩阵不等式可行解,利用线性矩阵不等式(LMI)工具箱求解得到永磁同步电机的调速过程的状态信息。仿真结果表明,与传统PI方式比较,采用鲁棒控制器的永磁同步电机系统响应速度快、控制性能优异、对负载变化不敏感,具有很好的鲁棒性,可满足设计要求。 To solve the problem of robust H∞ control for permanent magnet synchronous motor (PMSM), a state space model based on dq rotating coordinate system was constructed. Through static decoupling control, the strongly coupled nonlinear PMSM model was transformed into a linear system. A robust H∞ controller was designed. The solution of the controller was transformed into the feasible solution of matrix inequality, and the state information of the speed regulation process of PMSM was obtained by using the linear matrix inequality (LMI) toolbox. The simulation results showed that the PMSM system with robust controller had the advantages of fast response speed, excellent control performance and insensitive load variation, which could meet the design requirements.
作者 董新勇 肖伸平 张晓虎 郑伟航 DONG Xinyong;XIAO Shenping;ZHANG Xiaohu;ZHENG Weihang(School of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China;Key Laboratory for Electric Drive Control and Intelligent Equipment of Hunan Province,Zhuzhou 412007,China)
出处 《电工技术》 2019年第7期4-6,9共4页 Electric Engineering
关键词 H∞控制 PMSM PI控制 LMI H∞ control PMSM PI control LMI
作者简介 董新勇(1992-),硕士研究生,研究方向为永磁同步电机鲁棒控制。
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