摘要
针对低速下永磁同步直线电机定位力导致推力波动显著,电流与速度波形畸变等问题,提出了一种基于线性自抗扰控制器的永磁同步直线电机推力波动抑制策略,以提高系统运行性能。该控制器利用线性扩张状态观测器实时观测系统所有未知扰动量,并通过线性状态误差反馈对总扰动量进行前馈补偿,从而改善电机速度与电流波形质量。低速工况下,仿真和实验结果表明:相比于传统PI控制器,所提控制器速度波动抑制率最高为60%,证明了该控制策略的有效性。
Aiming at the significant thrust fluctuation and current and speed waveform distortion caused by the positioning force of permanent magnet linear synchronous motor(PMLSM)at low speeds,a PMLSM thrust fluctuation suppression strategy based on a linear active disturbance rejection control was proposed in order to improve the system operational performance.The controller observed all unknown perturbations of the system in real time using a linearly expanding state observer and feed-forward compensated the total perturbations through linear state error feedback,thus improving the motor speed and current waveform quality.Simulation and experimental results under low-speed conditions show that compared with the traditional PI controller,the speed fluctuation rejection rate of the proposed controller is up to 60%,which verifies the effectiveness of the proposed control strategy.
作者
黄道吉日
易祥烈
袁志方
王文湛
高宇帆
HUANG Daojiri;YI Xianglie;YUAN Zhifang;WANG Wenzhan;GAO Yufan(Naval Univ.of Engineering,Wuhan 430033,China)
出处
《海军工程大学学报》
北大核心
2025年第6期21-27,共7页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(52107136)
湖北省自然科学基金资助项目(2022CFB506)。
关键词
永磁同步直线电机
线性自抗扰控制
推力波动抑制
速度控制
permanent magnet linear synchronous motor
linear active disturbance rejection control
thrust fluctuation suppression
speed control
