Modeling of six-phase Double Fed Induction Machine for autonomous DC voltage generation

Abstract

More and more applications requires DC voltage for operation. With growing demand comes a need for high power DC generators. One of the most popular machines used for AC power generation are Double-Fed Induction Machines (DFIG), due to fractional power rotor side converter. But such machine is not fit for DC voltage generation. Nonlinear load produces torque pulsation causing mechanical stresses and acoustic noise. One of the methods of reduction of this drawback is increasing stator phase number. The paper presents the model of Multi-Phase DFIG with stator connected rectifier and control algorithm. Simulation results of such system are presented.