TENG Qing-fang1,2,3, LU Chang1
(1. School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China； 2. Key Laboratory of Opto-Technology and Intelligent Control of Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China; 3. Rail Transit Electrical Automation Engineering Laboratory of Gansu Province,
Lanzhou Jiaotong University, Lanzhou 730070, China)
Abstract： Employing matrix converter (MC) as driving mode, the strategy of model predictive torque control (MPTC) is proposed for three-phase permanent magnet synchronous motor (PMSM) system. MC is applied instead of conventional AC-DC-AC converter to increase the power factor (PF) of the system input side. MPTC is used to select optimal voltage space vector to enable the system to have satisfactory torque and flux control effect. The resultant MPTC strategy not only makes the MC-fed PMSM system operate reliably and have perfect control performance, but also makes the PF of the system input side be 1. Compared with direct torque control (DTC), the proposed MPTC strategy guarantees that MC-fed PMSM has better command-following characteristics in the presence of variation of load torque and tracking reference speed. Simulation results verify the feasibility and effectiveness of the proposed strategy.
Key words： permanent magnet synchronous motor (PMSM); matrix converter (MC); model predictive torque control (MPTC)
CLD number： TP273Document code： A
Article ID： 1674-8042（2018）03-0293-09doi： 10.3969/j.issn.1674-8042.2018.03.012
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矩阵变换器驱动永磁同步电机的模型预测转矩控制
滕青芳1,2,3， 陆畅1
（1. 兰州交通大学 自动化与电气工程学院， 甘肃 兰州 730070； 2. 光电技术与智能控制教育部重点实验室(兰州交通大学)， 甘肃 兰州 730070； 3. 甘肃省轨道交通电气自动化工程实验室(兰州交通大学)， 甘肃 兰州 730070）
摘要： 针对三相永磁同步电机(PMSM)系统， 采用矩阵变换器(MC)驱动方式， 设计了模型预测转矩控制(MPTC)的策略。 采用MC驱动替换常规交-直-交变换器， 以提高系统输入侧的功率因数(PF)， 而MPTC预测电压空间矢量保证了系统有良好的转矩和磁链控制效果。 在建立MC驱动PMSM系统的数学模型的基础上， 给出了MC驱动PMSM的MPTC设计方法。 MPTC策略不仅使MC驱动的PMSM系统稳定运行， 具有较好的转矩和磁链控制效果， 而且输入侧PF能够达到1。 与直接转矩控制（DTC）策略相比较， 该策略具有更强的抗负载干扰能力和跟踪给定转速变化的能力。 最后， 通过仿真实验验证了该方法的正确性和有效性。
关键词： 永磁同步电机； 矩阵变换器； 模型预测转矩控制
引用格式：TENG Qing-fang, LU Chang. Model predictive torque control of permanent magnet synchronous motor system driven by matrix converter. Journal of Measurement Science and Instrumentation, 2018, 9(3)： 293-301. ［doi：10.3969／j.issn.1674-8042.2018.03.012］
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