中国电机工程学报2024，Vol.44Issue(8)：3269-3277,中插28,10.DOI:10.13334/j.0258-8013.pcsee.230215
基于改进型积分滑模观测器的PMSM无位置传感器控制
Sensorless Control of Permanent Magnet Synchronous Motor Based on Improved Integral Sliding Mode Observer
摘要
Abstract
To solve the chattering problem of traditional sliding mode observer in the process of position estimation,a piecewise square root switching function is proposed to replace the traditional switching function,and its stability is analyzed by using Lyapunov stability criterion.To solve the poor tracking ability caused by the traditional adopted phase-locked loop(PLL)under speed changing conditions,an improved PLL scheme is proposed to improve the recognition speed by adding a differentiation element and to enhance the dynamic performance by adding a speed negative feedback part.Furthermore,a full compensation algorithm is proposed based on the phase-locking and position error identification mechanism,which can solve the problem of position estimation error caused by phase delay links such as filter and zero-order state holder.In addition,the sliding mode observer is established by using the simple d-q coordinate system voltage equation;and when using PLL for position estimation,it is not necessary to construct the position error as in the α-β coordinate system.Simulation and experiments validate the feasibility and effectiveness of the proposed strategy.关键词
永磁同步电机/积分滑模观测器/锁相环/位置误差补偿/无位置传感器Key words
permanent magnet synchronous motor/integral sliding mode observer/phase locked loop/position error compensation/sensorless control分类
信息技术与安全科学引用本文复制引用
孙庆国,朱晓磊,牛峰,刘旭,李珊瑚..基于改进型积分滑模观测器的PMSM无位置传感器控制[J].中国电机工程学报,2024,44(8):3269-3277,中插28,10.基金项目
国家自然科学基金(52207045) （52207045）
河北省省级科技计划项目(225676163GH). Project Supported by National Natural Science Foundation of China(52207045) （225676163GH）
Science and Technology Program of Hebei Province(225676163GH). （225676163GH）
