省级现货市场出清结果对区域同步电网潮流越限的影响

doi:10.12204/j.issn.1000-7229.2022.06.004

电力建设 ›› 2022, Vol. 43 ›› Issue (6): 34-42.doi: 10.12204/j.issn.1000-7229.2022.06.004

• 双碳目标驱动下的能源电力经济与市场机制·栏目主特文福栓教授、刘敦楠教授 • 上一篇下一篇

省级现货市场出清结果对区域同步电网潮流越限的影响

李晓刚¹(), 杨立兵¹(), 吴敏¹(), 万家豪²(), 冯冬涵²(), 周云²

1.国家电网有限公司华东分部,上海市 200120
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

收稿日期:2021-01-21 出版日期:2022-06-01 发布日期:2022-05-31
通讯作者: 冯冬涵 E-mail:13916235981@139.com;yang_lb@ec.sgcc.com.cn;wu_m@ec.sgcc.com.cn;castlewan@sjtu.edu.cn;seed@sjtu.edu.cn
作者简介:李晓刚 (1975),男,博士,教授级高级工程师,从事电力市场与电力交易、电力经济研究,E-mail:13916235981@139.com
杨立兵 (1964),男,硕士,教授级高级工程师,从事电力市场与电力交易研究,E-mail:yang_lb@ec.sgcc.com.cn
吴敏 (1979),男,硕士,高级工程师,从事电力市场与电力交易研究,E-mail:wu_m@ec.sgcc.com.cn
万家豪(1997),男,硕士研究生,研究方向为电力市场等,E-mail:castlewan@sjtu.edu.cn
周云 (1990),男,博士,讲师,主要研究方向为电力/综合能源系统应急和用电能效管理
基金资助:
国家电网有限公司华东分部科技项目“促进长三角电力资源一体化的可再生能源消纳量区域协作市场交易机制研究”(520800200068);国家自然科学基金“现货市场背景下节点边际电价的存在性与唯一性研究”(52077139)

Impact of Provincial Spot Market Clearing Results on the Power Flow Violation of Regional Synchronous Grid

LI Xiaogang¹(), YANG Libing¹(), WU Min¹(), WAN Jiahao²(), FENG Donghan²(), ZHOU Yun²

1. East China Branch of State Grid Corporation of China,Shanghai 200120,China
2. Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Shanghai Jiao Tong University), Shanghai 200240, China

Received:2021-01-21 Online:2022-06-01 Published:2022-05-31
Contact: FENG Donghan E-mail:13916235981@139.com;yang_lb@ec.sgcc.com.cn;wu_m@ec.sgcc.com.cn;castlewan@sjtu.edu.cn;seed@sjtu.edu.cn
Supported by:
Science and Technology Foundation of East China Branch of SGCC (Research on the Trading Mechanism of Regional Cooperative Market for Renewable Energy Consumption to Promote the Integration of Power Resources in the Yangtze River Delta )(520800200068);National Natural Science Foundation of China (Research on the Existence and Uniqueness of Nodal Marginal Price in Spot Market)(52077139)

摘要/Abstract

摘要：

跨省互联大电网可以实现更大范围内的电力资源优化配置,并提高可再生能源消纳能力。在当前“统一市场,两级运作”的全国统一市场体系下,省级市场将以省间市场的跨省交易结果作为边界进行市场出清,然而在区域同步电网内直接将省间的交流联络线功率作为边界节点上的注入功率时省级市场的潮流模型将与实际情况产生偏差,甚至会出现潮流越限的问题。文章首先提出利用由区域调度机构直接调度的直调机组来改善上述潮流越限的问题,然后通过分析省级、省间市场潮流模型的差异,提出将省间联络线功率、边界节点的相角差同时作为省级市场的边界条件,实现了省级市场中对潮流的正确计算,从而避免了潮流越限问题。文章还基于IEEE 39节点验证和分析了以上两种解决方法的有效性和可行性。

关键词: 交流联络线, 省级市场, 省间市场, 直调机组, 潮流越限, 相角差

Abstract:

Inter-provincial interconnected large power grid can realize the optimal allocation of power resources on a larger scale and improve the consumption capacity of renewable energy. Under the current national unified market system of unified market and two-level operation, the inter-provincial transaction results of the inter-provincial market will be used as the boundary for the provincial market clearing. However, in a regional synchronous grid, if the power of AC inter-provincial tie lines is directly regarded as the injection power of boundary nodes in the provincial market, the power flow model will deviate from the actual power flow, and there will even be a problem of power flow violations. This paper firstly proposes the use of direct-dispatch units, which are directly dispatched by regional dispatch agencies to deal with the above-mentioned problem of power flow violations. Then, by analyzing the differences in the power flow models of the provincial and inter-provincial markets, this paper proposes to use the power of the inter-provincial tie lines and the phase angle differences of the boundary nodes as the boundary conditions of the provincial market at the same time, which realizes the correct calculation of power flow in the provincial market, thereby avoiding the problem of power flow violations. The effectiveness and feasibility of the above two solutions are verified and analyzed based on IEEE 39-bus system.

Key words: AC tie lines, provincial market, inter-provincial market, direct-dispatch unit, power flow violation, phase angle difference

中图分类号:

TM73

李晓刚, 杨立兵, 吴敏, 万家豪, 冯冬涵, 周云. 省级现货市场出清结果对区域同步电网潮流越限的影响[J]. 电力建设, 2022, 43(6): 34-42.

LI Xiaogang, YANG Libing, WU Min, WAN Jiahao, FENG Donghan, ZHOU Yun. Impact of Provincial Spot Market Clearing Results on the Power Flow Violation of Regional Synchronous Grid[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(6): 34-42.

图/表 13

图1 IEEE 39节点系统区域划分图

Fig.1 Zonal partition diagram of the IEEE 39-bus system

表1 Offering and bidding price scenario 1 元/MW

Table 1

图2 省间市场出清结果(报价场景1)

Fig.2 Results of inter-provincial market clearing (offering and bidding price scenario 1)

图3 省级市场出清结果(报价场景1)

Fig.3 Results of provincial market clearing (offering and bidding price scenario 1)

表2 使用两种解决方法后的潮流越限情况(报价场景1)

Table 2 Power flow violation situation after applying two solutions (offering and bidding price scenario 1)

表3 使用两种解决方法后的联络线功率(报价场景1)

Table 3 Power flow of tie lines after applying two solutions (offering and bidding price scenario 1) MW

表4 Offering and bidding price scenario 2元/MW

Table 4

图4 省间市场出清结果(报价场景2)

Fig.4 Results of inter-provincial market clearing (offering and bidding price scenario 2)

图5 省级市场出清结果(报价场景2)

Fig.5 Results of provincial market clearing (offering and bidding price scenario 2)

表5 使用两种解决方法后的潮流越限情况(报价场景2)

Table 5 Power flow violations situation after applying two solutions (offering and bidding price scenario 2)

表6 使用两种解决方法后的联络线功率(报价场景2)

Table 6 Power flow of tie lines after applying two solutions (offering and bidding price scenario 2) MW

表7 改变直调机组后的潮流越限情况(报价场景2)

Table 7 Power flow violations situation after changing direct-dispatch units (offering and bidding price scenario 2)

表8 改变直调机组后的联络线功率(报价场景2)

Table 8 Power flow of tie lines after changing direct-dispatch units (offering and bidding price scenario 2)MW

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省级现货市场出清结果对区域同步电网潮流越限的影响

Impact of Provincial Spot Market Clearing Results on the Power Flow Violation of Regional Synchronous Grid

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