Power management of a stand-alone hybrid wind-microturbine distributed generation system

As generation and transmission costs, system stability, and security issues continue to be complicated by growing electricity demand that relies primarily on centralized electricity production, alternative distributed generation (DG) systems show promise as a solution. This paper presents a hybrid wind-microturbine generation (MTG) system for stand-alone applications. The Wind-MTG hybrid mainly consists of a wind energy conversion system that utilizes a self-excited induction generator and a split-shaft microturbine that incorporates a self-excited induction generator. The system component models and an overall power management scheme are presented in the paper. A simulation model for the hybrid energy system has been developed using Matlab/Simulink^reg. Actual wind data and a practical load profile are used to evaluate the system performance through a simulation case study. The simulation results indicate the suitability of the hybrid DG system for DG applications.