CCHP Operation with Phase-Change Energy Storage Technology Optimization

doi:10.3969/j.issn.1000-7229.2015.10.014

Abstract

Abstract:

Energy internet is an important development direction of future energy supply systems, and combined cooling, heating and power （CCHP）, which is one of the fundamental elements of energy internet, builds a conversation relationship between heating/cooling and power. When considering the operation of concentrated CCHP, the unit startup and shutdown method of gas-steam combined cycles and its operating state will impact the running efficiency and operating income of concentrated CCHP. So the reasonable unit startup strategy is the promise and foundation for the economic operation of CCHP. This paper analyzed the CCHP that used gas-steam combined cycle as power plant, lithium bromide absorption refrigeration technology and phase-change energy storage devices. According to relevant operating parameters of CCHP units, the economy objective function of concentrated CCHP operating was established based on the investigation of cooling-heating-power load in a region；and a unit startup and shutdown strategy of CCHP under economic operation was proposed, in order to improve the work efficiency and increase the operating income.

Key words: combined cooling, heating and power （CCHP）, economic operation, unit startup and shutdown strategy, lithium bromide absorption refrigeration, phase-change energy storage

CLC Number:

TM 731

GAO Feng, CHENG Lin, LIU Chen, TIAN Hao, SONG Yunting. CCHP Operation with Phase-Change Energy Storage Technology Optimization[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(10): 93-98.

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