
1.中国南方电力调度控制中心,广东省广州市 510670
2.华南理工大学电力学院,广东省广州市 510641
3.南方电网科学研究院有限责任公司,广东省广州市 510663
Received:06 September 2025,
Revised:2026-03-01,
Online First:01 July 2026,
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吴问足,吴冕,唐翀等.交直流混联区域电网现货市场送受端价格特性分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250906003.
WU Wenzu,WU Mian,TANG Chong,et al.Analysis of Sending-end and Receiving-end Price Characteristics for Spot Markets in Hybrid AC/DC Regional Power Grids[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250906003.
吴问足,吴冕,唐翀等.交直流混联区域电网现货市场送受端价格特性分析[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20250906003. DOI:
WU Wenzu,WU Mian,TANG Chong,et al.Analysis of Sending-end and Receiving-end Price Characteristics for Spot Markets in Hybrid AC/DC Regional Power Grids[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20250906003. DOI:
对电力市场出清价格特性进行分析是保证电力现货市场运营的公平性和透明性的重要工作。南方区域电力现货市场出清需要兼顾交直流混联电网和直流联络线运行特性,其出清价格呈现复杂特性。文中针对交直流混联区域电网,提出了一种电力现货市场的送受端价格特性分析方法。首先,考虑跨省交易成分的输电价格和输电网损,构建了南方区域电力现货市场出清模型;然后,结合送受端省异步互联、交直流混联2种场景,基于出清模型最优性条件,推导得出送受端省电能量价差与各约束影子价格之间的关系;进一步结合典型市场运行场景,阐释了输电价格、跨省送电计划边界、直流联络线运行特性、断面阻塞、交直流混联特性对送受端省电能量价差影响的机理;最后,采用南方区域电力市场仿真系统进行测试,结果表明送受端省电能量价差可表示为输电价格与跨省送电计划边界约束、联络线运行特性约束和断面潮流约束对应影子价格的线性组合。基于理论推导和仿真分析结果,针对南方区域电力市场建设提出了优化建议。
Analyzing the characteristics of electricity market clearing price is an important task for ensuring the fairness and transparency of electricity spot market operation. The China Southern regional spot market clearing needs to considering the operational characteristics of AC/DC hybrid grids and DC tie-lines
and its clearing prices exhibit complex features. This paper proposes an analysis method for sending-end and receiving-end price characteristics in the spot market for regional AC/DC hybrid power grids. First
an electricity spot market clearing model for the China Southern regional power grid is developed
which incorporates transmission tariffs and transmission losses associated with inter-provincial trading components. Then
utilizing the optimal conditions of the clearing model
the relationship of electric energy price difference between the sending-end and receiving-end provinces and the shadow prices of various constraints is derived for two scenarios such as asynchronous interconnection
and AC/DC hybrid interconnection between sending-end and receiving-end provinces. Furthermore
combined with typical market operation scenarios
the influence mechanisms of transmission tariffs
inter-provincial power transmission plan boundaries
operation characteristics of DC tie-lines
interface congestion
and AC/DC hybrid characteristics on the electric energy price difference between the sending-end and receiving-end provinces are elaborated. Finally
tests are conducted using the China Southern regional electricity market simulation system
which verifies that electric energy price difference between the sending-end and receiving-end provinces can be expressed as a linear combination of transmission tariffs and the shadow prices corresponding to inter-provincial power transmission plan boundaries constraints
tie-line operation characteristic constraints
and interface power flow constraints. Based on the theoretical derivation and simulation analysis results
recommendations are proposed for the construction of the China Southern regional electricity market.
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