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Chinese Journal of Management Science ›› 2023, Vol. 31 ›› Issue (8): 193-203.doi: 10.16381/j.cnki.issn1003-207x.2021.2187

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An Evolutionary Game Theoretic Approach to Analyze "Bilateral-Centralized" Power Market

Bo XU,Li-lin ZUO,Jia-yi JIN(),Xin-ming YUE,Zi-wei WANG   

  1. School of Business Administration,Northeastern University,Shenyang 110167,China
  • Received:2021-10-25 Revised:2021-12-23 Online:2023-08-15 Published:2023-08-24
  • Contact: Jia-yi JIN E-mail:812746292@qq.com

Abstract:

Encouraging power plants and large users to sign long-term stable bilateral contracts is one of the important measures of the power system reform in China. In order to explore its effectiveness, evolutionary game theory is adopted to model the power trading mechanism considering bilateral trading model, the power supply and demand model of power plants and large users is constructed, and the evolutionary process of market competition and equilibrium state of power plants is discussed. The model discusses four supply and demand scenarios according to the relationship between the rigid demand quantity of large users and the market equilibrium quantity, and uses the replicator dynamic theory to obtain the evolutionary stable state of the market. The results show that under different supply and demand scenarios, the introduction of bilateral transaction system may not necessarily improve the average profit of the market; under the determined market supply and demand, the reserved price of the power plant in the bilateral market will affect the overall profit level of the market.

Key words: bilateral market, concentrated market, evolutionary game, homogeneous generators, the direct power-purchase for the large users

CLC Number: