Impacts and Countermeasures of Generators' Strategic Bidding on Inter-Provincial and Intra-Provincial Spot Markets

SHANG Jingyi; ZHANG Yihan; YANG Fuwang; XIANG Mingxu

doi:10.11930/j.issn.1004-9649.202503108

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Impacts and Countermeasures of Generators' Strategic Bidding on Inter-Provincial and Intra-Provincial Spot Markets

更新时间：2025-12-20

- Impacts and Countermeasures of Generators' Strategic Bidding on Inter-Provincial and Intra-Provincial Spot Markets
- Vol. 58, Issue 11, Pages: 1-13(2025)
- 作者机构：
  
  1. 国网河南省电力公司经济技术研究院,河南,郑州,450052
  2. 输变电装备技术全国重点实验室（重庆大学）,重庆,400044
- 作者简介：
- 基金信息：
- DOI：10.11930/j.issn.1004-9649.202503108
  CLC：
- Published Online：01 December 2025，
  
  Published：01 December 2025
- 稿件说明：
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尚静怡, 张艺涵, 杨福旺, 向明旭. 发电商策略性竞价对省间-省内现货市场影响与应对策略[J]. 中国电力, 2025, 58(11): 1-13.

SHANG Jingyi, ZHANG Yihan, YANG Fuwang, et al. Impacts and Countermeasures of Generators' Strategic Bidding on Inter-Provincial and Intra-Provincial Spot Markets[J]. 2025, 58(11): 1-13.
尚静怡, 张艺涵, 杨福旺, 向明旭. 发电商策略性竞价对省间-省内现货市场影响与应对策略[J]. 中国电力, 2025, 58(11): 1-13. DOI： 10.11930/j.issn.1004-9649.202503108.

SHANG Jingyi, ZHANG Yihan, YANG Fuwang, et al. Impacts and Countermeasures of Generators' Strategic Bidding on Inter-Provincial and Intra-Provincial Spot Markets[J]. 2025, 58(11): 1-13. DOI： 10.11930/j.issn.1004-9649.202503108.

摘要

电力现货市场价格是反映市场供需关系、引导资源优化配置的重要信号。但在市场资源稀缺时，部分发电商存在滥用市场力以谋求更大收益的动机，从而导致市场价格信号失灵、用户侧过度支付等后果。建立合理的市场力监管防控机制、引导市场主体充分竞争是解决该问题的关键。为此，根据国内两级电力市场运作的实际情况，首先建立发电商参与两级现货市场的竞争均衡模型；然后，基于资源稀缺时发电商策略性行为的相关性，对发电商策略性竞价行为进行扫描，分析发电商的策略性竞价空间，量化市场力滥用的影响，并对极端保供场景下当前市场机制存在的问题进行模拟分析；最后，基于算例分析结果，对发电商策略性行为机理进行了剖析，提出从优化市场申报机制、完善市场监管与惩罚体系、建立双边竞价引导的市场竞争均衡三方面完善两级现货市场交易机制。

Abstract

Electricity spot-market price serve as a crucial signal that reflects supply-demand dynamics and guides optimal allocation of resources. However

when market resources become scarce

some generators may exploit their market power to secure higher profits

resulting in distorted market price signals and excessive costs for end users. Establishing a robust mechanism for monitoring and constraining market power

and fostering vigorous competition among market participants

is therefore essential. Accordingly

based on the operational realities of the two-tier electricity market in China

a competitive equilibrium model is first established to represent generators' participation in the two-level spot markets. Next

based on the correlation of generators' strategic behaviors during resource scarcity

their strategic bidding practices are scanned

the scope of their bidding strategies is analyzed

the impacts of market-power abuse are quantified

and a simulation analysis is conducted on the problems existing in the current market mechanism under extreme supply-security scenarios. Finally

based on the case study results

the mechanisms of generators' strategic behavior is analyzed

and recommendations are proposed to improve the two-tier spot market trading mechanism from three aspects: optimizing the market bidding mechanism

enhancing the market supervision and penalty system

and establishing a bilateral bidding-guided market competition equilibrium.

关键词

Keywords

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