混合动力汽车凸极式永磁同步电机电流解耦控制

doi:10.13229/j.cnki.jdxbgxb201703001

摘要/Abstract

摘要： 针对电机旋转坐标系下直轴与交轴电流耦合的问题,采用对角矩阵解耦控制方法,通过在电机的电流环中增加一个解耦器矩阵,将励磁电流i_d与转矩电流i_q解耦成互不干扰的量,保证电机输出转矩的精准性。仿真试验结果表明:与前馈解耦控制方法、反馈解耦控制方法相比,该方法在电机转速较高或电机参数发生变化时,鲁棒性更好,解耦效果显著。

关键词: 车辆工程, 混合动力汽车, 凸极式永磁同步电机, 电流解耦, 对角矩阵解耦控制

Abstract: For the coupling problems of d-axis and q-axis currents in the synchronous rotating frame, the diagonal matrix decoupling control method is proposed. The field current i_d and torque current i_q are decoupled into no-interfering variables by increasing a decoupling compensator in the motor current loop, so as to ensure the accuracy of PMSM's output torque. Furthermore, this method is compared with the feedforward decoupling control method and the feedback decoupling method. It is shown that the proposed method has better robustness and decoupling effect when the motor speed is high or the motor parameters change.

Key words: vehicle engineering, hybrid electric vehicle, salient-pole permanent magnet synchronous motor(SPMSM), current decoupling, diagonal matrix decoupling control

中图分类号:

U469

王伟华, 穆嘉毅, 符容, 范永凯, 王文楷. 混合动力汽车凸极式永磁同步电机电流解耦控制[J]. 吉林大学学报(工学版), 2017, 47(3): 693-700.

WANG Wei-hua, MU Jia-yi, FU Rong, FAN Yong-kai, WANG Wen-kai. Current decouple control of salient-pole permanent magnet synchronous motor for hybrid electric vehicle[J]. 吉林大学学报(工学版), 2017, 47(3): 693-700.

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