FUZZY-PI BASED SEIG FOR RURAL ELECTRIFICATION

Abstract

The conventional energy resources are depleting considerably. It has become confronts to fulfil the remarkable growth in demand of electrical power. The renewable energy resources (RES) include solar, wind, hydro, biomass, etc are eco-friendly and provide clean output. This paper deals with the Battery energy storage system (BESS) based Distributed Static Compensator (DSTATCOM) to control the voltage and frequency of constant speed prime mover driven self excited induction generator (SEIG) for feeding 3-phase 4-wire loads. Further, this paper also presents the comparison of Proportional Integral (PI) controller and Fuzzy Logic (FL) controller for voltage and frequency regulation. The FL controller works faster than PI and improves the performance of SEIG. The drawback of SEIG is poor voltage regulation and it requires an adjustable reactive power source with varying loads to maintain constant terminal voltage. A three phase insulated gate bipolar transistor based current controlled voltage source converter working as a DSTATCOM is used for harmonic mitigation, load leveller, load balancing and neutral current compensator. The proposed system is modelled and simulated in MATLAB/ simpower system.