Electric Power ›› 2023, Vol. 56 ›› Issue (2): 114-122.DOI: 10.11930/j.issn.1004-9649.202206104

• New Energy • Previous Articles     Next Articles

Optimization of Active Heat Storage in Heat-Supply Network Considering Curtailed Wind Power Consumption

WANG Nan1, ZHANG Chen2, HE Xudao1, YANG Yuwei1, CHEN Lian1, LIU Hao1, WANG Chenchen3, JIANG Xudong3, YE Cheng3   

  1. 1. State Power Investment Corporation Research Institute, Beijing 102209, China;
    2. Shandong Nuclear Power Company Ltd., Yantai 265116, China;
    3. Shanghai Nuclear Engineering Research & Design Institute Co., Ltd., Shanghai 200233, China
  • Received:2022-06-23 Revised:2022-12-02 Accepted:2022-09-21 Online:2023-02-23 Published:2023-02-28
  • Supported by:
    This work is supported by State Power Investment Corporation Overall R&D Project (Comprehensive Study on Regional Expansion of Advanced Nuclear Energy, No.TC2020HN02).

Abstract: To overcome the wind power curtailment caused by the thermoelectric coupling characteristics of combined heat and power units, this paper proposes an operation optimization strategy for integrated energy systems based on active heat storage of heat-supply networks by utilizing adjustable heat load. By analyzing the variations in unit output power, the heat storage effect of the heat-supply system, and the equivalent heat load in different scenarios, the paper explores the influences of passive heat storage of the heat-supply system and adjustable heat load on wind power consumption and system operation performance, respectively. The results show that both passive heat storage of the heat-supply system and flexible heat load can raise the level of wind power consumption, although the effect of the latter measure is better than that of the former one. In addition, adjustable heat load can be leveraged for positive heat storage in the heat-supply network to a certain extent.

Key words: integrated energy system, heat-supply network, heat storage, wind power consumption, flexible heat load