中国电力 ›› 2016, Vol. 49 ›› Issue (8): 21-25.DOI: 10.11930/j.issn.1004-9649.2016.08.021.05

• 电网 • 上一篇    下一篇

750 kV伊库线投运对新疆电网安全稳定特性的影响

李晓珺1,张志强1,郑超1,吕盼2,周专2,常喜强3,王衡3   

  1. 1. 中国电力科学研究院,北京 100192;
    2. 国网新疆电力公司经济技术研究院,新疆 乌鲁木齐 830016;
    3. 国网新疆电力公司调度中心,新疆 乌鲁木齐 830002
  • 收稿日期:2016-03-08 出版日期:2016-08-10 发布日期:2016-08-12
  • 通讯作者: 国家电网公司科技资助项目(XT71-13-037)
  • 作者简介:李晓珺(1985—),女,湖北武汉人,硕士,工程师,从事电力系统运行与控制方面的研究。

Impacts of Operation of 750 kV Yili-Kuche Power Transmission Line on Security and Stability of Xinjiang Power Grid

LI Xiaojun1, ZHANG Zhiqiang1, ZHENG Chao1, LV Pan2, ZHOU Zhuan2, CHANG Xiqiang3, WANG Heng3   

  1. 1. China Electric Power Research Institute, Beijing 100192, China;
    2. State Grid Xinjiang Economic Research Institute,Urumqi 830016, China;
    3. Xinjiang Communication Center for Power Dispatching, Urumqi 830002, China
  • Received:2016-03-08 Online:2016-08-10 Published:2016-08-12
  • Contact: This work is supported by Science and Technology Program of State Grid Corporation of China (No. XT71-13-037).

摘要: 新疆750 kV伊犁—库车输变电工程2016年建成投运后,将形成环天山西段大环网。针对伊库线投运前后新疆电网潮流分布、安全稳定水平、短路电流水平和小干扰稳定性等方面进行了计算分析,同时研究了伊库线投运对重要断面输电能力的提升效果。计算结果表明,伊库线的投运实现了南北疆电力互供、水电与光伏互补的格局,降低了伊苏线跳闸后伊犁地区孤网运行风险,提高了南疆电网的功角稳定性和小干扰稳定性,提升了伊犁、库车的外送能力。

关键词: 伊犁—库车, 安全稳定性, 短路电流, 小干扰稳定性, 输电能力

Abstract: The 750 kV Xinjiang Yili-Kuche power transmission and transformation project will form the Tianshan western section of a large ring network after completion and being put into operation in 2016. A calculation and analysis is made on the Xinjiang power grid before and after operation of the Yili-Kuche Line in terms of power flow distribution, safety and stability level, short-circuit current level and small disturbance stability. And the effects of the operation of Yili-Kuche line on the transmission capacity of key sections are studied. Calculation results show that the operation of Yili-Kuche line will realize inter-supply between north and south of Xinjiang power, and complementation between hydropower and photovoltaic power; lower the Isolated running risk of Yili region after tripping of Yili-Wusu line; improve the angle stability and small disturbance stability of Xinjiang power grid and upgrade the outbound power delivery capacity of Yili and Kuche region.

Key words: Yili-Kuche, safety and stability, short-circuit current, small disturbance stability, transmission capacity

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