Exergy Analysis of Cogeneration System for the Wind–Solar–Gas Turbine Combined Supply

Abstract

The purpose of this study is to perform an exergy analysis of a combined cooling, heating and power (CCHP) system driven by hybrid wind–solar–gas turbine. And use compressed air energy storage technology to solve the problem of network fluctuation caused by renewable energy instability. The triple supply system equipment proposed in this paper includes energy supply equipment, heat recovery equipment, cooling equipment and energy storage equipment. The energy balance model of the energy storage system is established, and the working characteristics are simulated by specific numerical values to find out the optimal design structure of the triple supply system, reduce the exergy loss of the equipment and improve the exergy efficiency of the system energy conversion.