Fuzzy Logic Controller Based Performance Analysis of Autonomous Pv-Array Excited Wind-Driven Induction Generator

Abstract

This paper content the hybrid scheme generation uses wind and pv system in the expeditious growth of power electronics techniques which makes the viability for the better utilization of power. For the utility grid or to an isolated load, the renewable energy system can be used to provide power directly. Further, the stand alone system find the vast utilization as water pumps, for village electrification, supply of power to an isolated areas which are far away from the utility grid. Overall, fully- controlled wind turbine & pv techniques, are often compatible as the sunlit days are generally serene & strong winds are literally occurs on cloudy days. To improve the generating performance &implementation of power utilization, the hybrid PV-wind system has higher scope to distribute continuous power for better result than compare to individual sources. On the contrary side, PV hybrid system has environmental assets such as reduction of carbon emission due to use of renewable energy resources. The stand-alone wind power generation with the self-excited generator comprises of dynamically variable reactive power to control constant output voltage. But in the proposed scheme of PV hybrid scheme by replenishing the 3 phase fixed frequency PWM inverter fed from the PV array the mandatory reactive power under varying rotor speed can be accomplished. This paper describe the advance fuzzy logic controller to vary the duty cycle of DCDC converter such as to support the load voltage constant under varying rotor speed or load.