Power Quality Improvement for Hybrid Energy in Distribution System

Abstract

MPPT controller is proposed for hybrid power generation scheme using solar and wind energy for isolated applications. The MPPT controller is designed to vary the duty-cycle of the SAZZ converter automatically such that to maintain the load voltage constant. The hybrid scheme comprises one set of fixed capacitor bank and a parallel connected three-phase fixed frequency pulse width modulation (PWM) inverter fed from the solar panels which provide the reactive power requirements to the induction generator. The PV-wind hybrid system returns the lowest unit cost values to maintain the same level of DPSP. For all load demands the levelised energy cost for PV-wind hybrid system is always lower than that of standalone solar PV or wind system. The PV-wind hybrid option is techno-economically viable for rural electrification. The simulation results are shown that voltage output is able to be control in steady state condition for SAZZ converter by using this methodology.