A Novel Complex Vector Decoupling Control Method of IPMSM with Fuzzy Strategy

This paper establishes a novel complex vector decoupling control (NCVDC) for MTPA of interior permanent magnet synchronous motors (IPMSMs). Then, combined with fuzzy strategy, a novel fuzzy complex vector decoupling control (NFCVDC) method is further proposed. Compared with the traditional complex vector decoupling control, the NCVDC model and the NFCVDC method are more flexible in the selection of
$d-q$
axis current regulator parameters. Considering the parameter variation under different load conditions, the fuzzy strategy is adopted to adaptively adjust decoupling terms and compensation terms to increase the robustness of the system. Simulation results confirm that the proposed NFCVDC method improves dynamic response performance of the current loop and has low dependence on motor parameters.