基于频率自适应ADRC的PMSM不确定电流扰动抑制策略

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DOI：10.15938/j. emc.2025.04.012

中图分类号：TM341 文献标志码：A 文章编号：1007-449X（2025）04-0124-11

Suppression strategy for uncertain current disturbances in PMSM based on frequent adaptive active disturbance rejection controller

KANG Erliang1， SHI Shengjin'， LI Sheng² （1.EngineringTechnologyResearch CenterofHighEficiencyDirect-Drive SysteminUniversities in Heilongjiang，Harbin University of Science and Technology，Harbin 150080，China;2.Chengdu Electric MFG.Co.，Chengdu 61000，China）

Abstract： Permanent magnet synchronous motor （PMSM） has complex current disturbance during operation.These disturbances include not only the disturbance caused by external load，but also the disturbance caused by its own operating characteristics. In order to suppress these disturbances，a frequency adaptive active disturbance rejection controllr was proposed. Firstly，the mathematical model of PMSM under disturbance was analyzed，and the problems of traditional linear active disturbance rejection control （LADRC） were analyzed. Secondly，a frequency adaptive resonant controller was added to the extended state observer （ESO） of the traditional self LADRC. The traditional ESO was used to estimate the DC disturbance，and the frequency adaptive resonant controler was introduced to estimate the AC disturbance，so that the traditional LADRC can simultaneously suppress the uncertain periodic disturbance and aperiodic disturbance. This improved ESO estimates the uncertain frequency through the least square estimation，so it does not need the accurate information of disturbance.Finally，the simulation and experiments show that the controller using this method can efectively suppress the current ripple. Keywords： permanent magnet synchronous motor; active disturbance rejection control; extended state observer；current disturbance suppression；frequency adaptation； least squares estimation

0引言

随着电动汽车和人工智能的发展，永磁同步电机被广泛应用到电力推进[1]、机器人[2]和航空航天[3]等高精确度系统。（剩余13438字）