Optimal Operation Strategy of a Community Integrated Energy System Constrained by the Seasonal Balance of Ground Source Heat Pumps

Jianan Liu, Hao Yu, Haoran Ji, Kunpeng Zhao, Chaoxian Lv and Peng Li
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Jianan Liu: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Hao Yu: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Haoran Ji: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Kunpeng Zhao: State Grid Customer Service Centre, Tianjin 300300, China
Chaoxian Lv: School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
Peng Li: Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China

Sustainability, 2020, vol. 12, issue 11, 1-24

Abstract: Ground source heat pumps (GSHPs) are now widely used in community integrated energy systems (CIES) because of their high efficiency in energy conversion. However, the coefficient of performance (COP) of GSHPs is unstable if the soil temperature changes with seasonal imbalanced cooling and heating loads, thus downgrading the overall performance of CIES. In this paper, an annual optimization model for CIES that considers the seasonal balance of GSHPs is established. Then, a day-ahead operation strategy based on the pre-allocated load of the GSHP in the yearly balance is proposed while considering the uncertainties in daily conditions. The proposed strategy is validated on a practical CIES in China and assessed on a year-round time scale. The results show that the operation of CIES can be stable, economical and sustainable while ensuring the seasonal balance of the GSHP.

Keywords: community integrated energy system (CIES); ground source heat pump (GSHP); seasonal balance; uncertainties; coefficient of performance (COP); optimal operation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:11:p:4627-:d:367833

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