Steady State Analysis of a Stand-alone Induction Generator with AC Rotor Excitation

회전자 문류\ulcorner\ulcorner방식의 자립형 유도발전기의 정상상태 해석

In this paper, a stand-alone wound rotor induction generator system is proposed and its steady state characteristics are analyzed. It is shown that the self-excitation of the system can be acheined by exciting the rotor through the PWM inverter. The analysis is based upon the eguivalent circuit and the steady state dq model of the mahine. The results show that the proposed system can be made to generate constant voltage constant frequency power for various speed and load conditions.