Comparison of DFOC of Seven-Phase Induction Motor with PI and Fuzzy-Logic speed Controller under speed sensor fault

摘要

The paper presents the analysis of the Direct Field-Oriented Control of seven-phase squirrel-cage induction motor with the application of the PI and Fuzzy-Logic controller in the speed control loop and with MRAS~(CC) estimator. The encoder failure in the DFOC control system has been analyzed. The mathematical model of the seven-phase induction motor has been presented and the MRAS~(CC) estimator has been described. The descriptions of the Space Vector Modulation and Fuzzy-Logic controller have been shown. Results of simulation studies of the Direct Field-Oriented Control methods in the speed sensor fault condition are presented.