Optimization of operation strategy for a grid interactive regional energy system

Wenfeng Chu, Wei He*, Qingyang Jiang, Sheng Zhang, Zhongting Hu, Gaofei Xu, Yanping Yuan, Jianhua Fan

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

With the rapid development of power demand response in grid interactive building, it is urgent for regional energy system with great power flexibility potential to realize the interaction with grid. The power flexibility of regional energy system can be divided into direct power flexibility and power flexibility transformed from thermal flexibility. The former comes from power generation system and power storage equipment, whereas the latter comes from cold (heat) storage system. To improve the power flexibility and economy of regional energy stations, this paper proposes a TOU-price-based optimization model for the operation strategy for a grid interactive regional energy system. The model optimizes the hourly load distribution of the direct energy supply system and the energy storage system to achieve load transfer without affecting user comfort requirements, to maximize the power flexibility, and to improve the economy of the system. The proposed model can serve as reference for the operation strategy optimization and the system design of other existing or new regional energy systems. On the basis of experimental comparison and simulation analysis, the accuracy and rationality of the optimization strategy are verified.

Original languageEnglish
Article number111294
JournalEnergy and Buildings
Volume250
Number of pages11
ISSN0378-7788
DOIs
Publication statusPublished - 2021

Keywords

  • Cold storage
  • Heat pump
  • Optimization strategy
  • Power demand response
  • Power flexibility
  • Regional energy system

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