Abstract：Researching instantaneous active power and instantaneous reactive power for permanent magnet synchronous motors, a predictive instantaneous power control strategy is proposed, which is based on analyzing vector control and direct torque control. By using coordinates transformation and decoupling thought id=0 for vector control, directive values of stator current in rotary two-phase coordinate is calculated. The expressions for instantaneous active and reactive power are built and discretized, and directive values of instantaneous power are achieved through minimizing cost function, which is constituted of instantaneous power tracing error. Expected switching voltage vector is chosen according to no mutation for stator current. The strategy is checked with simulation and experiment, and both results show that there are preferable dynamic and steady state for stator current, rapid tracing for torque and speed, and small ripple for stator flux linkage. Finally, the results illustrate effectiveness and feasibility for predictive instantaneous power control.
李昆鹏, 万健如, 朱琳. 永磁同步电机瞬时功率预测控制[J]. 电工技术学报, 2015, 30(1): 38-44.
Li Kunpeng, Wan Jianru, Zhu Lin. Predictive Instantaneous Power Control for Permanent Magnet Synchronous Motors. Transactions of China Electrotechnical Society, 2015, 30(1): 38-44.
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