中国电力 ›› 2017, Vol. 50 ›› Issue (2): 29-33.DOI: 10.11930/j.issn.1004-9649.2017.02.029.05

• 电网-特高压输电专栏 • 上一篇    下一篇

特高压送端接入系统方式及输电能力研究

艾琳, 郭雁珩, 徐国新   

  1. 水电水利规划设计总院,北京 100120
  • 收稿日期:2016-07-22 出版日期:2017-02-20 发布日期:2017-02-22
  • 作者简介:艾琳(1978—),女,四川乐山人,博士,高级工程师,从事电力系统规划研究工作。E-mail:ailinhuadian@163.com

Research on Grid-Connection Modes of Sending Ends and Transmission Capability of UHV Transmission Lines

AI Lin, GUO Yanheng, XU Guoxin   

  1. China Renewable Energy Engineering Institute, Beijing 100120, China
  • Received:2016-07-22 Online:2017-02-20 Published:2017-02-22

摘要: 为了提高特高压系统稳定性和通道送电能力,提出了在特高压交流电网发展的不同阶段选择适宜的送端站接入方式的方法。对送端特高压站不同接入系统方式下的系统稳定性进行了研究,重点针对落地方式中电磁环网结构对地区电网稳定的影响进行分析,在此基础上结合特高压电网发展的不同阶段,对送端站适宜的接入系统方式进行分析。结果表明,送端站采用适宜的接入方式能够提高特高压系统的稳定性和通道送电能力。最后,以实际系统为例,验证了所提方法的可行性和有效性。

关键词: 特高压, 送端, 接入系统方式, 输电能力, 系统稳定性, 电磁环网

Abstract: In order to improve the system stability and transmission capability of UHV transmission line, the paper proposes a method for choosing suitable grid-connection modes of sending ends in different UHV AC grid development stages. Firstly, the system stability is studied for different grid-connection modes of UHV sending stations. The impacts of electromagnetic looped network structure on stabilities of regional power system are analyzed. And then, the suitable grid-connection modes of sending ends are analyzed for different UHV grid development stages. The results show that suitable grid-connection modes of sending ends can improve the stability of the UHV system and the transmission capacity of transmission corridors. Finally, the feasibility and validity of the proposed method were verified through real power system.

Key words: ultra-high voltage, sending end, grid-connection modes, transmission capacity, power system stability, electromagnetic looped network

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