Voltage Regulation of a Stand Alone 3-Ø Self-Excited Induction Generator Using AC/DC/AC Converter Fed RLC Series Circuit

Abstract: This paper presents the voltage regulation of a stand-alone 3-Ø self-excited induction generator (SEIG) using AC/DC/AC converter fed series RLC circuit. The effects of change in inverter frequency on the terminal voltage of the SEIG and the current, drawn by the rectifier circuit have been analyzed. The frequency variation in series RLC circuit obtained by inverter produces the phenomenon of an inductive, capacitive reactance and resistive effect at the point of common coupling (PCC) of the generator terminal. This is equivalent to injecting leading/lagging reactive power into SEIG. Further the performance study of SEIG has been carried out. The proposed system has been simulated using power system tool box in Matlab/Simulink software. Keywords: Self-excited induction generator, AC/DC/AC converter, PWM inverter, RLC series circuit, voltage regulation.