Modeling of a Converter-Connected Six-Phase Permanent Magnet Synchronous Generator

A MATLAB/Simulink model of a six-phase permanent magnet synchronous generator is established for simulation purpose. The machine is part of a microturbine generation system and is to be connected with a rectifier and a grid-connected inverter. It has two sets of three-phase windings on the stator side, which are shifted by 30 electrical degrees with each other. The internal dynamics of the machine is derived in a stationary d-q frame and then realized in MATLAB/Simulink with a user-definable S-function. The electrical interface with the converter is realized with a combination of voltage measuring units and controlled current sources provided by Simulink itself.