Operation Strategy and Power Storage Strategy of CCHP System

Abstract

Based on the analysis of the operation strategy of CCHP systems using two refrigeration methods, this paper studies the cost changes caused by battery charging and discharging. and forms the operation strategy of the CCHP system with battery, the results of the study examined changes in operating costs, primary energy consumption, and carbon dioxide emissions of CCHP systems before and after adding batteries. Studies have shown that the strategy adopted in this paper reduces operating costs, but increases primary energy consumption and carbon dioxide emissions. After adding the battery, the increased annual investment cost is greater than the reduced operating cost, which will lead to an increase in the annual total cost, and it is uneconomical to use the battery to store energy.