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Modeling and optimal operation of community integrated energy systems: A case study from China

Wang, Chengshan, Lv, Chaoxian, Li, Peng, Song, Guanyu, Li, Shuquan, Xu, Xiandong ORCID: and Wu, Jianzhong ORCID: 2018. Modeling and optimal operation of community integrated energy systems: A case study from China. Applied Energy 230 , pp. 1242-1254. 10.1016/j.apenergy.2018.09.042

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The operation of community integrated energy systems (CIESs) is challenging because it is necessary to couple energy production, conversion and consumption on the end-user side. Multiple energy demands need to be fed simultaneously with the goal of economy and reliability. This paper formulates the optimal scheduling problem based on a real community integrated energy system in China. The system has multiple chillers (i.e. three ground source heat pumps, two conventional water-cooled chillers and two double-duty chillers) and two types of thermal storage devices (i.e. two cold water tanks and an ice-storage tank). Based on detailed device modeling, a community integrated energy system operation strategy considering unit commitment is proposed, and then is transformed into a mixed-integer linear programming model by linearization of nonlinear items. Case studies are conducted based on the data for a typical day in summer. The results show that the proposed strategy can utilize the flexibility of the energy storage devices and realize an economic and reliable operation of the community integrated energy system by coordinating various energy devices. The strategy can also reduce the startup/shutdown frequency of chillers significantly.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0306-2619
Date of Acceptance: 5 September 2018
Last Modified: 25 Oct 2022 13:55

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