Optimal Planning of Integrated Energy Systems Based on Coupled CCHP

Xiaofeng Dong, Chao Quan and Tong Jiang
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Xiaofeng Dong: School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
Chao Quan: School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
Tong Jiang: School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

Energies, 2018, vol. 11, issue 10, 1-27

Abstract: With the widespread attention on clean energy use and energy efficiency, the integrated energy system (IES) has received considerable research and development. This paper proposed an electricity-gas IES optimization planning model based on a coupled combined cooling heating and power system (CCHP). The planning and operation of power lines and gas pipelines are considered. Regarding CCHP as the coupled hub of an electricity-gas system, the proposed model minimizes total cost in IES, with multistage planning and multi-scene analyzing. Renewable energy generation is also considered, including wind power generation and photovoltaic power generation. The numerical results reveal the replacing and adding schemes of power lines and gas pipelines, the optimal location and capacity of CCHP. In comparison with conventional separation production (SP), the optimization model which regards CCHP as the coupled hub attains better economy. At the same time, the influence of electricity price and natural gas price on the quantities of purchasing electricity and purchasing gas in the CCHP system is analyzed. According to the simulation result, a benchmark gas price is proposed, which shows whether the CCHP system chooses power generation. The model results and discussion demonstrate the validity of the model.

Keywords: distribution power network; distribution gas network; IES; optimization; planning (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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