Abstract：In the duty cycle model predictive current control, there are still large current ripples because the second voltage vector is always zero-voltage vector and the voltage vector is selected in six fixed directions in each sampling period. In this paper, a two-vector based model predictive current control strategy is proposed. This method performs two voltage vector selections in each sampling period, and the range of voltage vector selection is expanded to arbitrary directions and amplitudes because the second voltage vector is not fixed to zero-voltage vector yet. Besides, the duration of voltage-vector is evaluated simultaneously in cost function, which makes the selection of voltage vector more accurate. Experimental results show that the proposed method has good steady-state and dynamic performance. Compared with the duty cycle model predictive current control, the proposed method can reduce the current ripples effectively.
徐艳平, 张保程, 周钦. 永磁同步电机双矢量模型预测电流控制[J]. 电工技术学报, 2017, 32(20): 222-230.
Xu Yanping, Zhang Baocheng, Zhou Qin. Two-Vector Based Model Predictive Current Control for Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 2017, 32(20): 222-230.
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2017, Vol. 32 
