Model-Free Current Predictive Control Method for Switched Reluctance Motors
Guoqiang Han, Huimin Zhu, Lin Zhang, Jingwei Hong, Beibei Zhu
Abstract
It is difficult to obtain an accurate mathematical model of a switched reluctance motor (SRM). In this article, the current difference-based model-free predictive current control (CDB-MFPCC) strategy is proposed. A novel updated method of current difference is given considering the control delay. The beetle antennae search algorithm is applied to adjust the proportional and integral coefficients to increase the dynamic response. Only the phase current at two consecutive sampling points is required in this method. Moreover, the model predictive current control and the recursive least square-based model-free predictive current control strategies are investigated and compared with the CDB-MFPCC strategy. The advantages of the proposed method are validated with simulations and experiments.