Double Optimization Three-vector-based Model Predictive Current Control for Permanent Magnet Synchronous Motors

作者：Xu Yanping; Wang Jibing; Zhou Qin; Zhang Baocheng

来源：Proceedings of the CSEE, 2018, 38(6): 1857-1864.

DOI：10.13334/j.0258-8013.pcsee.170901

• Control strategies
• Current ripples
• Effective voltage
• Model predictive
• Permanent Magnet Synchronous Motor
• Quadrature components
• Steady state performance
• Vector combinations

In the two-vector-based model predictive current control strategy, combinations of all optional voltage vectors are not evaluated, and the coverage range of candidate voltage vectors is limited. So direct and quadrature components of current still had large ripples. For this problem, a double optimization three-vector-based model predictive current control strategy for the permanent magnet synchronous motor was proposed in this paper. Two nonzero voltage vectors and one zero vector were applied in each sampling period, and the second effective voltage vector could be selected in the all optional voltage vectors. The optimal voltage vector was selected by evaluating all the optional five groups of three vector combinations, and the coverage range of candidate voltage vectors was expanded. Experimental results show that the proposed control strategy reduces effectively direct and quadrature current ripples and improves the steady-state performance.

• 出版日期2018