Design and implementation of induction generator controller for single phase self excited induction generator

Abstract

This paper presents design and implementation of Digital Signal Processor (DSP) based induction generator controller (IGC) to regulate the voltage and frequency of single phase self excited induction generator (SEIG) which employs a three phase squirrel cage induction machine, suitable for stand alone power mode employing unregulated turbine such as micro-hydro power generation. A three phase induction machine can be used to generate single phase supply at constant voltage and frequency if the electrical load is maintained constant at its terminals. A prototype model of single phase self excited induction generator is developed such that the load on the SEIG remains constant despite change in the consumer load. The developed prototype model is cost effective, reliable, flexible and capable of network based application for remote configuration with TCP/IP stack. The transient behavior of developed DSP based SEIG-IGC system at different operating conditions such as application and removal of static (resistive and reactive) load is investigated to demonstrate the capabilities of the proposed IGC.