An Improved Model Predictive Torque Control for PMSM Drives Based on Discrete Space Vector Modulation
An Improved Model Predictive Torque Control for PMSM Drives Based on Discrete Space Vector Modulation
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DOI：
10.1109/tpel.2023.3257399
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发表时间：
2023-06
影响因子：
6.7
通讯作者：
Wei Zhang;Yong Yang;Mingdi Fan;Liqun He;Aiming Ji;Yang Xiao;H. Wen;Xinan Zhang;Tao Yang;S. Mekhilef;José Raúl Rodríguez Rodríguez-José-Raúl-Rodríguez-Rodríguez-50388497
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作者：
Wei Zhang;Yong Yang;Mingdi Fan;Liqun He;Aiming Ji;Yang Xiao;H. Wen;Xinan Zhang;Tao Yang;S. Mekhilef;José Raúl Rodríguez Rodríguez-José-Raúl-Rodríguez-Rodríguez-50388497
提出了一种基于离散空间矢量调制（DSVM）的永磁同步电机（PMSM）模型预测转矩控制（MPTC）的改进方法。针对传统MPTC存在的转矩脉动大和计算复杂度高的问题，采用二次优化和一种新的简化搜索策略。二次优化的核心思想是使输出电压矢量更接近实际最优解。在这种情况下，在每个采样周期中施加更合适的电压矢量。简化的搜索策略通过减少候选电压矢量的数量来减少计算时间，而不影响驱动器的性能。与传统的无DSVM和有DSVM的MPTC相比，该方法可以产生上级稳态性能和较低的计算复杂度。仿真和实验结果验证了该方法的有效性和可行性。
In this article, an improved model predictive torque control (MPTC) method based on discrete space vector modulation (DSVM) is proposed for permanent magnet synchronous motor (PMSM) drives. Aiming at solving the two problems of large torque ripples and high computational complexity in conventional MPTC, the proposed method adopts a second optimization and a new simplified search strategy. The key idea of second optimization is to make the output voltage vector closer to the actual optimal solution. In this case, a more suitable voltage vector is applied in each sampling period. The simplified search strategy reduces the calculation time by cutting down the number of candidate voltage vectors without affecting drives performance. Compared to the conventional MPTC without DSVM and with DSVM, the proposed method can produce superior steady-state performance and lower computational complexity. Simulation and experimental results are presented to validate the effectiveness and feasibility of the proposed method.