1 School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
2 National Key Laboratory of Electromagnetic Energy (Naval University of Engineering), Wuhan 430030, China
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文章历史+
Received
Published
Revised
2025-05-29
2026-08-18
2025-12-09
Online Date
2026-09-04
PDF (4447K)
摘要
轴向磁通永磁电机在运行中易受轴向力影响,导致气隙波动和参数变化,从而引发转速稳定性差、抗扰动能力不足等问题。提出一种结合扩展卡尔曼滤波器(extended Kalman filter,EKF)与自适应管状模型预测控制(tube model predictive control,Tube-MPC)的复合策略。EKF用于在线估计电机状态与参数,Tube-MPC基于动态最小扰动不变集(minimal robust positively invariant,mRPI)实时调整扰动边界和Tube半径,确保状态轨迹始终处于鲁棒可行域内。仿真结果表明,该方法在参数突变和外界扰动下仍能保持较高的跟踪精度和稳定性,显著提升了系统的适应性与鲁棒性。
Abstract
Axial flux permanent magnet (AFPM) motors are rendered susceptible to axial forces during operation, by which air gap fluctuations and parameter variations are induced. Consequently, issues such as diminished speed stability and inadequate disturbance rejection capabilities are precipitated. To address these challenges, a composite control strategy integrating an extended Kalman filter (EKF) with adaptive tube model predictive control (Tube-MPC) was proposed. The motor states and parameters were estimated online utilizing the EKF. Concurrently, the disturbance boundaries and tube radii were adjusted in real-time by the adaptive Tube-MPC based on dynamic minimal robust positively invariant (mRPI) sets, ensuring that the state trajectories are maintained within the robust feasible region. It is demonstrated by simulation results that high tracking accuracy and stability are sustained under conditions of abrupt parameter changes and external disturbances, whereby the adaptability and robustness of the system are significantly enhanced.
BAO Chang, CHEN Li-xue, ZHAI Xiao-fei, LIU Yong.
Adaptive Tube Model Predictive Control for Speed Regulation of Axial Flux Permanent Magnet Motor[J].
Science Technology and Engineering, 2026, 26(23): 9965-9972 DOI:10.12404/j.issn.1671-1815.2506975
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