Dual-plane Flux-weakening Control for Five-phase Interior Permanent Magnet Synchronous Motor

This paper presents an improved flux-weakening method for five-phase interior permanent magnet synchronous motor (FP-IPMSM) drives using a dual-plane vector control strategy. By taking advantage of the extra degrees of freedom provided by the five-phase structure, the proposed method aims to achieve high performance and efficiency in the flux-weakening operation area. In this area, the fundamental plane and harmonic plane are coupled due to voltage and current limitations. The paper delves into the voltage limits under two planes, thereby obtaining the boundary of the flux-weakening operating region for FP-IPMSM. Two separate current regulators are used in the dual-plane control, one for the fundamental plane and one for the harmonic plane, both designed to optimize torque production in the flux-weakening operation area. The accuracy and viability of the suggested approach are confirmed by the simulation results.