Electric Machines & Control Application
1673-6540
2020
47
1
1
7
10.12177/emca.2019.116
article
表贴式永磁同步电机磁链和转矩无差拍控制系统
Deadbeat Stator Flux and Torque Control System of Surface Permanent Magnet Synchronous Motor
建立了基于定子磁链坐标系的表贴式永磁同步电机(SPMSM)下一时刻的磁链和转矩计算简化模型，验证了可以采用简化模型来计算下一时刻的磁链和转矩，从而降低无差拍控制计算复杂程度，提高系统实时性能，并得到实现磁链和转矩无差拍控制的理想输出电压矢量。采用模型预测控制(MPC)选择最接近理想电压矢量的基本电压矢量作为输出电压矢量。仿真验证了所提SPMSM磁链和转矩无差拍控制系统的可行性。为了进一步提高系统实时性能，提出2种无需MPC的基本电压矢量简化选择方法。仿真结果表明所提出的电压矢量简化选择方法控制效果与传统MPC非常接近，但省却了MPC计算，减小了系统计算负担。
Simplified models for calculating stator flux and torque of surface permanent magnet synchronous motor (SPMSM) at the next moment in the stator flux coordinate system are proposed. It is verified that these models can be used in deadbeat stator flux and torque control system. Moreover, the complexity of the deadbeat control calculation is reduced and the real-time performance of the system is improved. Model predictive control (MPC) is used to select a basic voltage vector as output voltage vector, which is the nearest to ideal output voltage vector calculated in deadbeat torque and stator flux control system. Simulation results testify the effectiveness of the proposed control system. In order to further improve the real-time performance, two simplified methods to determine the basic voltage vector are given. Simulation results show that the control performance using these simplified methods is almost the same as using MPC. As the calculation in MPC is not needed, the system calculation burden is reduced.
永磁同步电机; 无差拍控制; 模型预测控制; 转矩脉动
permanent magnet synchronous motor (PMSM); deadbeat control; model predictive control (MPC); torque ripple
李耀华,周逸凡,赵承辉,秦玉贵,杨启东,任佳越
LI Yaohua, ZHOU Yifan, ZHAO Chenghui, QIN Yugui, YANG Qidong and REN Jiayue
/djykzyy/article/abstract/20200101