Voltage Vector Rapid Screening-Based Three-Vector Model Predictive Torque Control for Permanent Magnet Synchronous Motor
Li Xianglin1, Xue Zhiwei2, Yan Xueyu2, Feng Xingtian2, Zhang Lixia2
1. College of Electrical Engineering Qingdao University Qingdao 266071 China; 2. College of New Energy China University of Petroleum Qingdao 266580 China
Abstract：The torque ripple can be reduced in the duty cycle model predictive torque control (Duty-MPTC) by optimizing the duty cycle of the active voltage vector. However, obtaining the optimal active voltage vector needs six predictions, which requires a large amount of calculation, and the torque ripple is still large since the second voltage vector in the conventional Duty-MPTC can only be a zero vector. Therefore, in this paper, a new voltage vector rapid screening-based three-vector model predictive torque control (TV-MPTC) for permanent magnet synchronous motor (PMSM) is proposed. In order to minimize the control complexity and reduce the amount of calculation, the two active voltage vectors are selected directly from the new switching table. Also, a new duty cycle calculation method is proposed to achieve the deadbeat control of torque and flux. The experimental results show that compared with the Duty-MPTC method, the proposed TV-MPTC method can effectively reduce the torque ripple, thereby improving the steady-state performance.
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2022, Vol. 37 
