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1.电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市 200240
2.上海非碳基能源转换与利用研究院,上海市 200240
3.浙江大学电气工程学院,浙江省杭州市 310027
Received:25 November 2023,
Revised:2024-06-16,
Published Online:16 August 2024,
Published:10 October 2024
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何光宇,肖居承,范帅等.适应新型电力系统的电力互替品市场——(二)商品形态及形成机理[J].电力系统自动化,2024,48(19):28-39.
HE Guangyu,XIAO Jucheng,FAN Shuai,et al.Substitute Power Product Market Suitable for New Power System —Part Two Product Form and Its Formation Mechanism[J].Automation of Electric Power Systems,2024,48(19):28-39.
何光宇,肖居承,范帅等.适应新型电力系统的电力互替品市场——(二)商品形态及形成机理[J].电力系统自动化,2024,48(19):28-39. DOI: 10.7500/AEPS20231125001.
HE Guangyu,XIAO Jucheng,FAN Shuai,et al.Substitute Power Product Market Suitable for New Power System —Part Two Product Form and Its Formation Mechanism[J].Automation of Electric Power Systems,2024,48(19):28-39. DOI: 10.7500/AEPS20231125001.
当前的电力现货市场基础理论是在新能源占比极低情况下提出的,其所依据的“分时交易”假设无法适应新型电力系统新能源占比日渐趋高、调节需求日益增加的新情况。为此,文中舍弃“分时交易”的基本假设,将功率曲线作为有机整体进行交易,探讨商品形态及形成机理。首先,分析对比“分时交易”与系列论文提出的“整体交易”中商品的形态,揭示“分时交易”中电力商品在各时段同质的假设在实际中不能成立的根本原因。其次,从市场组织者角度出发,探讨电力互替品的性质与形成过程,指出电力除具备生产使用价值外,还具有平衡价值,并定义互替电量、调节电量分别对这两种价值进行表征与量化。进而,从市场主体角度出发,以电力互替品的形成成本最小为目标,提出市场主体自主优化形成电力互替品的方法。进一步指出,各主体还可互补聚合形成电力互替品,适应海量分散的新型市场主体进入市场。最后,算例从量、质、价三个方面展示电力互替品的形成过程,分析了影响电力互替品形成成本的关键因素。电力互替品的形成过程,正是市场主体从计划式的“被动提供灵活性”变为市场化的“主动提供灵活性”的过程,也正是系统调节能力的挖掘提升过程。
The current theoretical foundation of the electricity spot market was established when the proportion of renewable energy was very low. The “time-of-use trading” assumption that the theretical foundation relies upon is unable to adapt to the new situation where the renewable energy is increasingly dominant and the regulation demand is growing in new power systems. Therefore
this paper abandons the basic assumption of “time-of-use trading” and proposes the power curve as an organic whole for trading
exploring the product form and its formation mechanism. Firstly
the forms of products in the “time-of-use trading” and the “holistic trading” proposed in this series of papers are analyzed and compared
revealing the fundamental reason why the assumption of homogeneity in power goods across different time periods in “time-of-use trading” does not hold true in practice. Secondly
from the perspective of market organizers
the nature and formation process of substitute power products are explored. It is pointed out that electricity has not only production and usage value but also balancing value
and the concepts of “substitute energy” and “regulating energy” are defined to characterize and quantify these two values
respectively. Furthermore
from the perspective of market entities
aiming to minimize the formation cost of substitute power products
a method for market entities to autonomously optimize the formation of substitute power products is proposed. It further notes that market entities can complement and aggregate to form substitute power products
adapting to the entry of a vast number of new
decentralized market entities. Finally
a case demonstrates the formation process of substitute power products in terms of quantity
quality
and price
analyzing the key factors affecting the formation cost of substitute power products. The formation process of substitute power products represents a shift for market entities from a planned “passive provision of flexibility” to a market-oriented “active provision of flexibility”
and it is also a process of exploring and enhancing the regulation capacity of systems.
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