利用基于有限差分的强跟踪 H∝ 滤波器的PMSM参数辨识

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关键词：永磁同步电机；电磁参数辨识；有限差分；强跟踪 H∞ 滤波器；渐消因子DOI：10.15938/j. jhust. 2025.04.004中图分类号：TM341 文献标志码：A 文章编号：1007-2683（2025）04-0030-09

Parameter Identification of PMSM with Finite-difference-based Strong Tracking H∝ Filter

YUAN Tianqing'， JIA Ke¹， SHUANG Yang² （1.KeyLaboratoryof ModernPower System Simulationand Control&RenewableEnergy Technology，MinistryofEducation， Northeast Electric Power University，Jilin 132012，China; 2.Gongzhuling Power Supply Company of State Grid Jilin Electric Power Co.，Ltd.，Changchun l3610o， China）

Abstract： The tracking maneuver process accuracy of traditional H∞ filter is not enough for high precision control fields.A finitedifference-based strong tracking H∞ filter（FD-STHF） is proposed for permanent magnet synchronous motor（PMSM），which can improve the electromagnetic parameters identification accuracy. The strong tracking H∞ filter（STHF） is obtained by introducing an asymptotic elimination factor to improve the H∞ filter.Furthermore，a finite difference algorithm is adopted to calculate the Jacobi matrixofthenonlinearfunctionintheSTHF，whichcanreduce theerorcausedbytheoriginalfrstorderTaylorexpansion.Compared to H∞ filter，theFD-STHFcanimprovetheparameteridentificationresult trackingaccuracyefctively.Finally，theefectivensand thesuperiorityof theproposedFD-STHFinidentifyingtheinductanceandresistanceparametersofthePMSMarestudiedthrough MATLAB/Simulink software.The simulation results show that the proposed finite-diference-based strong tracking H∞ filter can improve the parameter identification accuracy effectively.

Keywords ：permanent magnet synchronous motor;electromagnetic parameters identification;finitediference；strong racking H∞ filter；fading factor

0 引言

PMSM由于功率因数高、结构简单、效率高等优点被广泛应用于许多工业领域[1-3]。（剩余13145字）