Clearing Model for Inter-provincial Spot Electricity and Reserve Coupling Considering Reserve Sharing

doi:10.11930/j.issn.1004-9649.202305131

Abstract

Abstract: The installed capacity of new energy increases year by year, resulting in huge new energy accommodation pressure on the power system. The regional inter-provincial electricity spot market, as an important means for power sharing in regional power grid, still faces such problems as poor market operation efficiency and serious inter-provincial barriers. It is a key tool for constructing the inter-provincial electricity spot market to further tap the reserve sharing capacity of each province and alleviate the new energy curtailment problems in energy-rich provinces and the power shortage problems in energy-poor provinces. An inter-provincial electricity spot clearing model is constructed with the maximum social welfare of the inter-provincial market as the objective, which comprehensively considers the reserve shortage capacity, reserve capacity sharing, inter-provincial transmission cost and network loss. The optimal allocation of inter-provincial power resources is realized by the inter-provincial power spot clearing with consideration of reserve sharing, which effectively reduces the new energy curtailment within a province and alleviates the reverse distribution of power resources in a region. A case study of an IEEE 39-node system and a regional power grid for inter-provincial power transaction clearing has verified the rationality and practicability of the proposed model.

Key words: inter-provincial transaction, electricity spot market, reserve sharing, social welfare, new energy accommodation

XU Ling, ZHANG Xipeng, CAO Yiqi, ZHANG Bingjin, DONG Cheng, TAN Zhenfei. Clearing Model for Inter-provincial Spot Electricity and Reserve Coupling Considering Reserve Sharing[J]. Electric Power, 2023, 56(9): 48-56.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202305131

https://www.electricpower.com.cn/EN/Y2023/V56/I9/48

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