Journal of Shanghai Jiao Tong University ›› 2025, Vol. 59 ›› Issue (11): 1647-1659.doi: 10.16183/j.cnki.jsjtu.2023.628

• New Type Power System and the Integrated Energy • Previous Articles     Next Articles

Transaction Mechanism of Medium- and Long-Term Continuous Centralized Auction Considering Available Transmission Capacity

YANG Kaitao1, LUO Xi2, XUE Bike3, GUO Yanmin3, FU Xueqian1()   

  1. 1 College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
    2 Zhejiang Electric Power Trading Center Co., Ltd., Hangzhou 315000, China
    3 China Electric Power Research Institute, Nanjing 210037, China
  • Received:2023-12-15 Revised:2024-01-10 Accepted:2024-01-29 Online:2025-11-28 Published:2025-12-02
  • Contact: FU Xueqian E-mail:fuxueqian@cau.edu.cn

Abstract:

With the advancement of the construction of the national unified electricity market system, the intra-provincial medium- and long-term electricity market adopts the trading mode of unrestricted clearance before security assessment, which is unable to meet the needs of the future medium and long-term market continuous market opening and high-frequency trading requirements. Therefore, this paper establishes a continuous centralized bidding trading mechanism and clearing model for the medium- and long-term electricity market. The continuous opening of the medium and long-term market is achieved through daily continuous trading, and the available transmission capacity is considered in the clearing model to improve the enforceability of trading results. Then, based on the marginal clearing price, it establishes a Marginal-Vickrey-Clarke-Groves mechanism to meet the balance of payments, which quantifies the contribution of market entities in the transaction through market efficiency coefficient, and distributes the market value, promoting the market participants to declare the true price information. Finally, based on medium- and long-term as well as spot electricity market trading data from a certain province in central China, a simulation analysis is conducted on the transaction data including three power generation enterprises and five power users. The clearing price is 399.64 yuan/(MW·h), which verifies the effectiveness and feasibility of the mechanism.

Key words: medium- and long-term electricity market, centralized auction transaction, Vickrey-Clarke-Groves mechanism, available transmission capacity, market clearing

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