可再生能源消纳背景下直接交易中的二次出清与定价

doi:10.12204/j.issn.1000-7229.2020.10.004

电力建设 ›› 2020, Vol. 41 ›› Issue (10): 30-37.doi: 10.12204/j.issn.1000-7229.2020.10.004

可再生能源消纳背景下直接交易中的二次出清与定价

曾佳妮¹^,², 林晓凡¹^,², 钟桦³, 刘畅¹^,², 冯冬涵¹^,², 周云¹^,², 陈春逸³

1.上海交通大学电子信息与电气工程学院, 上海市 200240
2.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
3.上海电力交易中心有限公司,上海市 200122

收稿日期:2020-03-31 出版日期:2020-10-01 发布日期:2020-09-30
通讯作者: 冯冬涵
作者简介:曾佳妮(1996),女,硕士研究生,主要研究方向为电力市场;|林晓凡(1997),男,硕士研究生,主要研究方向为电力市场;|钟桦(1977),男,高级工程师,主要研究方向为电力系统和电力市场;|刘畅(1995),男,硕士研究生,主要研究方向为电力市场;|周云(1990),男,博士,主要研究方向为电力/综合能源系统应急(恢复)和用电能效管理(电动汽车)等;|陈春逸(1987),男,高级工程师,主要研究方向为电力系统和电力市场。
基金资助:
国家自然科学基金项目(51677115);国家自然科学基金项目(52077139);上海市浦江人才计划(17PJD018)

Secondary Clearing Rules and Price Determination in Direct Electricity Trading with Renewable Energy Consumption

ZENG Jiani¹^,², LIN Xiaofan¹^,², ZHONG Hua³, LIU Chang¹^,², FENG Donghan¹^,², ZHOU Yun¹^,², CHEN Chunyi³

1. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2. Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Shanghai Jiao Tong University), Shanghai 200240, China
3. Shanghai Electric Power Trading Center Co., Ltd. , Shanghai 200122, China

Received:2020-03-31 Online:2020-10-01 Published:2020-09-30
Contact: FENG Donghan
Supported by:
National Natural Science Foundation of China(51677115);National Natural Science Foundation of China(52077139)

摘要/Abstract

摘要：

为了促进可再生能源电力消纳,可再生能源优先发电企业在参与受端省电力市场直接交易时,所有交易电量需要全部成交。为了满足这一要求,部分省市采用了二次出清的交易机制,该机制目前没有相关研究,因此有必要对该机制的交易流程和定价方法进行研究。以双侧竞价、统一边际电价出清的电力市场模型为基础,建立了匹配出清与二次出清相结合的电力市场数学模型,提出二次出清定价应当符合的3条原则。在此基础上分析了统一边际价格在二次出清定价时存在的问题,并提出一种新的定价方式,最后用算例进行了阐述。

关键词: 电力市场, 电力直接交易, 二次出清, 最优化

Abstract:

To promote the accommodation of renewable energy, when renewable energy power generation enterprises participate in the direct purchase of Shanghai power market, all their power needs to be purchased. To satisfy this policy, some provinces use a trading mechanism called secondary clearing, which lacks of relevant research. Therefore, it is necessary to study the transaction process and pricing method of this mechanism. According to the power market model of bilateral bidding and marginal clearing price, this paper establishes a mathematical model of power market which combines matching clearing and secondary clearing, puts forward three principles that pricing of secondary clearing should conform to, and analyses the problems existing in marginal price. A new pricing method is put forward by illustrating with an example.

Key words: power market, direct power purchase, secondary clearing, optimization

中图分类号:

TM71

曾佳妮, 林晓凡, 钟桦, 刘畅, 冯冬涵, 周云, 陈春逸. 可再生能源消纳背景下直接交易中的二次出清与定价[J]. 电力建设, 2020, 41(10): 30-37.

ZENG Jiani, LIN Xiaofan, ZHONG Hua, LIU Chang, FENG Donghan, ZHOU Yun, CHEN Chunyi. Secondary Clearing Rules and Price Determination in Direct Electricity Trading with Renewable Energy Consumption[J]. ELECTRIC POWER CONSTRUCTION, 2020, 41(10): 30-37.

图/表 15

图1 单过程边际价格—优先发电企业匹配出清

Fig.1 Price of single process with out-of-town power generation enterprise matching cleared

图2 单过程边际价格—优先发电企业二次出清

Fig.2 Price of single process with out-of-town power generation enterprise secondary cleared

图3 两阶段边际价格示意图

Fig.3 Marginal price of two stages

图4 匹配出清边际价格示意图

Fig.4 Marginal price of matching clearing

表1 边际定价方法评价

Table 1 Evaluation of marginal pricing methods

图5 匹配出清边际价格的一种情况

Fig.5 A situation with marginal price of matching clearing

图6 新定价方式示意图

Fig.6 New pricing method for secondary clearing

图7 算例出清示意图

Fig.7 Clearing process of the example

表2 发电企业竞价信息

Table 2 Information of generators

表3 购电用户竞价信息

Table 3 Information of buyers

表4 匹配出清情况

Table 4 Matching clearing

表5 二次出清情况

Table 5 Secondary clearing

表6 不同定价方式下的二次出清价格

Table 6 Secondary clearing price of each method

图8 二次出清与定价示意图

Fig.8 Secondary clearing process and pricing

图9 二次出清价格对发电机1价格变化的响应

Fig.9 Response of secondary clearing price to bidding price of generator 1

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可再生能源消纳背景下直接交易中的二次出清与定价

Secondary Clearing Rules and Price Determination in Direct Electricity Trading with Renewable Energy Consumption

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