The Effect of One-Step Delay on the Model Predictive Current Control for Three-Phase Induction Machine and the Delay Compensation Methods
Wang Zhiguo1, 2, Zheng Zedong1, Li Yongdong1, 3, Peng Zhong1, Deng Zhichang4
1. Depterment of Electrical Engineering Tsinghua University Beijing 100084 China; 2. Department of Control Engineering Academy of Army Armored Forces Beijing 100072 China; 3. School of Electrical Engineering Xinjiang University Urumqi 830047 China; 4. Military Representative Office in the 617 Plant Baotou 014032 China
Abstract：Recently, model predictive control (MPC) has been a hot research topic in electric drives for its advantages of clear concepts and easy consideration of multivariable case with constraints. In this paper, the effect of one-step delay on continuous control set model predictive current control (CCS-MPCC) for three-phase induction machine is investigated by the closed-loop system and the distribution of the closed-loop poles. Four model-based delay compensation methods are compared from the static and dynamic characteristics of the prediction, and the sensitivity to the motor parameters. Firstly, the basic principle of CCS-MPCC for three-phase induction machine is introduced. Then, the effect of one-step delay on CCS-MPCC is analyzed by using closed-loop model of the system, and four model-based prediction compensation methods are presented. Finally, the effect of one-step delay on CCS-MPCC characteristics is verified by simulation and experiment, and the characteristics of four compensation methods are compared. The experimental results show that the improved reduced order observer can effectively reduce the current overshoot, oscillation and current ripple, improve dynamic response speed and control stability of CCS-MPCC.
王治国, 郑泽东, 李永东, 彭忠, 邓智昌. 一拍滞后对三相异步电机模型预测电流控制的影响及补偿方法[J]. 电工技术学报, 2018, 33(21): 4928-4940.
Wang Zhiguo, Zheng Zedong, Li Yongdong, Peng Zhong, Deng Zhichang. The Effect of One-Step Delay on the Model Predictive Current Control for Three-Phase Induction Machine and the Delay Compensation Methods. Transactions of China Electrotechnical Society, 2018, 33(21): 4928-4940.
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2018, Vol. 33 
