基于改进型滑模观测器的PMSM无位置传感器控制 -- 西北工业大学学报,2018,36(4):754-760
论文:2018,Vol:36,Issue(4):754-760
引用本文:
华志广, 窦满峰, 赵冬冬, 颜黎明, 姬军鹏, 杨剑威. 基于改进型滑模观测器的PMSM无位置传感器控制[J]. 西北工业大学学报
Hua Zhiguang, Dou Manfeng, Zhao Dongdong, Yan Liming, Ji Junpeng, Yang Jianwei. Sensorless Control of Permanent Magnet Synchronous Motor Based on the Improved Sliding Mode Observer[J]. Northwestern polytechnical university

基于改进型滑模观测器的PMSM无位置传感器控制
华志广1, 窦满峰1, 赵冬冬1, 颜黎明1, 姬军鹏2, 杨剑威1
1. 西北工业大学 自动化学院, 陕西 西安 710072;
2. 西安理工大学 自动化与信息工程学院, 陕西 西安 710048
摘要:
针对经典滑模观测器在永磁同步电机无位置传感器控制过程中的抖振问题,研究了一种改进型滑模观测器。分析了经典滑模观测器产生抖振的原因,采用饱和函数代替符号函数实现抖振的抑制,结合磁场定向控制技术实现永磁同步电机的转速估计,在1台2.7 kW,10 000 r/min的永磁同步电机硬件平台上进行实验验证。仿真分析和实验结果表明,改进后的滑模观测器能够准确估计转速并减弱转子位置估计过程中的抖振。
关键词:    永磁同步电机    无位置控制    滑模观测器    抖振    实验设计   
Sensorless Control of Permanent Magnet Synchronous Motor Based on the Improved Sliding Mode Observer
Hua Zhiguang1, Dou Manfeng1, Zhao Dongdong1, Yan Liming1, Ji Junpeng2, Yang Jianwei1
1. School of Automation, Northwestern Polytechnical University, Xi'an 710072, China;
2. School of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China
Abstract:
Sliding mode observer (SMO) which has a strong robustness is used in the sensorless control system of permanent magnet synchronous motor (PMSM). The method is usually used to estimate the rotor position although it has the chattering problem. According to the causes of the chattering in traditional SMO, the method of improved sliding mode observer (ISMO) is proposed in this paper. Sign function is replaced by the saturation function to suppress the chattering problem, and the speed of PMSM is estimate when combined with field oriented control (FOC) method. A hardware platform of 2.7 kW, 10 000 r/min PMSM is built to verify the control effectiveness of ISMO. Simulation analysis and experimental result show that ISMO can estimate the rotor speed accuracy and reduce the chatting at the same time.
Key words:    permanent magnet synchronous motor    sensorless control    sliding mode observer    chattering    design of experiments   
收稿日期: 2017-05-10     修回日期:
DOI:
基金项目: 国家自然科学基金(51507143)、中央高校基本科研业务费(3102017zy014)与陕西省高校科协青年人才托举计划资助
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作者简介: 华志广(1990-),西北工业大学博士研究生,主要从事现代电机控制及燃料电池供气技术研究。
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1.杨剑威, 窦满峰, 赵冬冬, 颜黎明, 方淳.基于自适应滑模观测器的五相永磁同步电机无位置传感器控制[J]. 西北工业大学学报, 2016,34(6): 1057-1064