• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2020, Vol. 41 ›› Issue (2): 21-29.doi: 10.3969/j.issn.1000-7229.2020.02.003

• 电力系统弹性与灵活性 ·栏目主持 文福拴教授、林振智副教授· • 上一篇    下一篇

可再生能源跨区消纳的受端电网阻塞机理分析

郭莉1,吴晨1,陈立2,丛小涵2,苗曦云2,王蓓蓓2   

  1. 1.国网江苏省电力有限公司经济技术研究院,南京市 210008;2.东南大学电气工程学院,南京市 210096
  • 出版日期:2020-02-01
  • 作者简介:郭莉(1976),女,硕士,高级工程师,主要研究方向为电力系统、储能; 吴晨(1988),女,硕士,工程师,主要研究方向为电网规划、电力市场; 陈立(1994),男,硕士研究生,主要研究方向为需求响应与电力市场; 丛小涵(1995),女,硕士研究生,主要研究方向为电力系统灵活性、需求侧管理; 苗曦云(1996),女,硕士研究生,主要研究方向为电力系统阻塞管理; 王蓓蓓(1979),女,博士,副教授,博士生导师,通信作者,主要研究方向为需求响应、电力市场。
  • 基金资助:
    国家自然科学基金项目(71471036);国网江苏省电力有限公司科技项目“高比例新能源跨区互动消纳的大受端辅助服务资源配置优化研究” (J2019058)

Analysis on Transmission Congestion Mechanism of Cross-Region Renewable Energy Integration in Receiving-End Power Grid

GUO Li1,WU Chen1,CHEN Li2,CONG Xiaohan2,MIAO Xiyun2,WANG Beibei2   

  1. 1.Economic Research Institute, State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210008, China;2.School of Electrical Engineering, Southeast University,Nanjing 210096, China
  • Online:2020-02-01
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No. 71471036).

摘要: 随着区外来电馈入和可再生能源并网,受端电网开始出现电源负荷分布不均导致的区域输电通道裕度不足问题,由于送端与受端电网电源与负荷特性的差异,调峰需求不同,区域间调峰互济将引起裕度不足的输电断面阻塞。文章针对华东某省受端电网出现的过江断面输电阻塞问题,分析了区外来电和本地可再生能源对系统调峰的影响,建立了南北调峰互济引起过江通道阻塞机理分析模型。算例模拟了系统总备用和平均备用方式下受端电网可能出现的2种阻塞情景,借助GOPT仿真软件对该省2025年规划态进行全年时序仿真进一步论证阻塞现象。通过全文的机理分析,最后提出可通过分区差异化分配备用、分区差异化配置调峰电源的方式来缓解区域输电阻塞问题。

关键词: 受端电网, 区外来电, 可再生能源, 消纳, 输电阻塞, 备用

Abstract: With large amount of outside power injection and renewable energy grid-connection, the regional transmission congestion problem caused by unbalanced distribution of power supply and load begins to appear in the receiving-end grid. Because of the difference of power sources and loads peculiarity, peak regulation demand between sending-end grid and receiving-end grid, the interregional peak adjustment will cause the transmission section obstruction with insufficient margin. In view of an eastern developed province receiving-end grids transmission congestion problem, this paper analyzes the effects of high proportion of outside power and local renewable energy on peak load regulation. Then a congestion mechanism analysis model is established. In the example, two different congestion scenarios are simulated under the two reserve power supply modes of total reserve and average reserve, and a continuous time-sequence simulation of the provinces planning state in 2025 is carried out with GOPT simulation software to further demonstrate the blocking phenomenon. Through the mechanism analysis of this paper, some suggestions are put forward to alleviate the regional transmission congestion, such as differentiated allocation of peak load regulation power and differentiated allocation of reserve.

Key words:  receiving-end grid, outside power, renewable energy, consumption, transmission congestion, reserve

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