An Electronic Load Controller for Self-Excited Induction Generators

This paper is aimed to the design of an electronic load controller (ELC) for a self-excited induction generator (SEIG) on stand alone applications. With constant input power and fixed value of capacitance, the induced voltage varies with the applied load. This paper proposes an ELC scheme whose control strategy is simple and reliable. Anti-parallel IGBT switches are used to control the connection and disconnection of dump load. The proposed ELC is tested under several critical situations, providing an excellent voltage and frequency regulation. Harmonic analysis is carry out to determine the total harmonic distortion (THD).