Electric Power ›› 2025, Vol. 58 ›› Issue (11): 111-121.DOI: 10.11930/j.issn.1004-9649.202501049

• Key Technologies of Local Energy System Operation Under Electric-Carbon Coordination • Previous Articles     Next Articles

Impacts of Diverse Operational Modes and Flexibility of Distributed Energy Systems within Electricity Market

SONG Zhuoran1(), ZHANG Yanni1, WANG Yang1, JIANG Haiwei1, LI Jiayu2, GAO Hongchao2()   

  1. 1. State Grid Liaoning Electric Power Co., Ltd., Shenyang 110006, China
    2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2025-01-15 Revised:2025-02-17 Online:2025-12-01 Published:2025-11-28
  • Supported by:
    This work is supported by National Key Research and Development Program of China (No.2021YFB2401200).

Abstract:

Improving demand side collaboration capability is one of the key measures to accelerate the construction of new power systems. Unlike traditional resources, the flexibility of distributed resources is limited by the bounded rationality of users and the value transmission mechanism of the retail market. Exploring the interaction modes and flexibility impact mechanism between distributed energy systems and power grids has become a key issue. To this end, based on the user's perspective, we firstly sorted out the typical interaction modes between distributed resources and power systems, and analyzed the selection logic of users' different behavior patterns. Secondly, we analyzed the market transaction models available to resource users under current market mechanisms and their impact mechanism on users' behaviors. It was found that the direct transmission of spot price signals will maximally incentivize strategic behaviors among resource users, while their bounded rationality in decision-making simultaneously introduces operational risks to market stability. To mitigate these compounded effects, we proposed a split electricity volume bidding mechanism for resource users participating in spot markets. Finally, based on the real data of market price signals in a province in China, the rationality of the proposed method and the improved mechanism was demonstrated.

Key words: distributed energy resource, operation mode, flexibility, time-of-use price, electricity spot market