Efficient Modeling of Six-Phase Synchronous Machines for Simulations of Renewable Energy Generation Systems

Multi-phase machines are being increasingly utilized in renewable energy systems due to their advantages in performance and reliability. Electromagnetic transient (EMT) simulations are essential for design and analysis of modern power systems. Therein, efficient and accurate models of multi-phase electrical machines are required. This paper extends the prior work, and presents an efficient decoupled constant-parameter voltage-behind-reactance (DCPVBR) model of saturable six-phase machines for implementation in offline and real-time fixed timestep EMT simulation programs. The proposed model is shown to have superior computational performance with minimal accuracy compromise compared to the existing state-of-the-art models.