Field Oriented Control with Variable Switching Frequency for Symmetrical Six-Phase Induction Machines

The investigation in this study focuses on the advantages of symmetrical six-phase induction machines and introduces a novel control strategy, termed field-oriented control with a novel modulator (FOC-M). Six-phase machines provide the advantages of multiphase machines while implementing modular three-phase structures, resulting in a cost-effective and smooth transition. The proposed FOC-M method focuses on the control of symmetrical six-phase machines, providing a significant advantage by producing voltage vectors with high torque/flux production and null current harmonic distortion. The control algorithm is characterized by its simplicity, as it does not require system parameters, imposes a low computational burden, and exhibits excellent overall performance. These characteristics make it an attractive control option for this particular type of machines. The effectiveness of the proposed method is verified through experimental data.