An optimal operating strategy for CCHP in multi-energy carrier system

Abstract

Combined cooling, heating and power technique is an important developing trend of future energy supply systems, which contains several modules relating to energy conversion, storage and management in multi-energy carrier system. In this paper an optimized operation strategy for CCHP based on economy is presented. The output of CCHP system is supposed to change in real time for the high efficiency and operating incomes by way of unit commitment and changing operating state of gas turbine, hence a study on the economic operation of CCHP system is significant. This paper mainly aims at establishing the Annual operating income model of CCHP system running over a finite-time horizon with thermal energy storage, and the maximum of this optimization problem will be the reference of the economic operation of CCHP system. A numerical study is running to confirm the effectiveness of the approach.