电动汽车永磁同步轮毂电机无差拍预测电压补偿控制

doi:10.13229/j.cnki.jdxbgxb20210227

摘要/Abstract

摘要：

针对传统的无差拍预测电流控制依赖数学模型，温度变化引起的参数失配会导致电流响应误差和电流脉动增大的问题，提出了一种基于复合滑模扰动观测器（CSMDO）的无差拍预测电压补偿控制（DPVCC）策略。该观测器可以同时估计未来电流值和系统的集总扰动，并将其补偿到电压矢量中来提高鲁棒性。基于30 kW永磁同步轮毂电机的MATLAB/Simulink仿真和实验结果显示，DPVCC可将电流误差降低60%以上，可以抑制电流脉动，提高控制系统精确性和鲁棒性。

关键词: 车辆工程, 永磁同步轮毂电机, 无差拍预测控制, 滑模扰动观测器, 电压补偿, 鲁棒控制

Abstract:

The traditional deadbeat predictive current control is dependent on mathematical model. The parameter mismatch caused by temperature change will increase the current response error and current pulsation. To solve these problems， a deadbeat predictive voltage compensation control （DPVCC） strategy based on composite sliding mode disturbance observer （CSMDO） was proposed. The observer can estimate the future current value and the lumped perturbation of the system simultaneously and compensate them into the voltage vector to improve the robustness. The MATLAB/Simulink simulation and experimental results based on a 30 kW permanent magnet synchronous hub motor show that DPVCC can reduce the current error more than 60%， which can restrain current pulsation， improve the accuracy and robustness of the control system.

Key words: vehicle engineering, permanent magnet synchronous hub motor, deadbeat predictive control, sliding mode disturbance observer, voltage compensation, robust control

中图分类号:

TM341

孙晓东,张瑶,陈龙. 电动汽车永磁同步轮毂电机无差拍预测电压补偿控制[J]. 吉林大学学报(工学版), 2022, 52(10): 2213-2224.

Xiao-dong SUN,Yao ZHANG,Long CHEN. Deadbeat predictive voltage compensation control for permanent magnet synchronous hub motors of electric vehicles[J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(10): 2213-2224.

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参数	符号	数值
极对数	p_n	22
定子电阻/Ω	R_s	0.8
d?轴电感/mH	L_s	4.5
q?轴电感/mH	L_s	4.5
永磁体磁链/Wb	ψ_f	0.215
转动惯量/（kg·m²）	J	0.03
额定转速/（r·min^-1）	N	360
额定功率/kW	P_N	30

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