中国电力 ›› 2016, Vol. 49 ›› Issue (8): 17-20.DOI: 10.11930/j.issn.1004-9649.2016.08.017.04

• 电网 • 上一篇    下一篇

高电压大容量实验基地接入电网的电压暂降影响研究

张志强1,唐晓骏1,李晓珺1,王晓阳1,张波2,吕盼3   

  1. 1. 中国电力科学研究院,北京 100192;
    2. 中国电力技术装备有限公司,北京 100052;
    3. 国网新疆电力公司经济技术研究院,新疆 乌鲁木齐 830016
  • 收稿日期:2016-03-29 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:张志强(1978—),男,河北滦县人,硕士,高级工程师,从事电力系统仿真分析及运行控制技术研究。

Research on Voltage Sags Influence of High Voltage Level and Bulk Experiment Base Access to Power System

ZHANG Zhiqiang1, TANG Xiaojun1, LI Xiaojun1, WANG Xiaoyang1, ZHANG Bo2, LV Pan3   

  1. 1. China Electric Power Research Institute, Beijing 100192, China;
    2. China Electric Power Equipment and Technology CO. LTD.,Beijing 100052, China;
    3. State Grid Xinjiang Economic Research Institute, Urumqi 830016, China
  • Received:2016-03-29 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: 目前,国内接入电压等级最高的电器实验基地将接入甘肃天水330 kV电网,开展开关电器动热稳定实验和变压器短路等实验项目,实验期间持续性的短路将引起甘肃电网严重的电压暂降。为了评估电压暂降给系统带来的影响,先对电网考核实验基地接入的标准进行了筛选,并以甘肃电网数据为基础,仿真计算了不同实验项目和不同实验容量的电压暂降幅值,最终根据仿真结果和国家标准分析了电压暂降对继电保护、发电厂辅机、周边敏感负荷设备等的影响。研究结论可用于支撑大容量开关电器短路实验基地接入系统的安全性评估。

关键词: 甘肃电网, 实验基地, 开关电器, 电压暂降

Abstract: An electric switch experimental study base, which operates on the highest voltage level domestically, will access to Gansu 330 kV Tianshui power grid. The main experiments in the base are switch dynamic and thermal current experiments and transformer short circuit experiments. During experiments, the continuous short circuit will cause severe voltage sags of Gansu power system. In order to evaulate effects of voltage sags to power system, appropriate standard is first selected to check experiment base accessing. Based on actual data of Gansu power grid, simulation of voltage sag value is performed for different experiment projects and experiment capacities. The impacts of voltage sags to power system protection settings, power plant auxiliary machine and surrounding sensitive load equipment are analyzed according to simulation results and national standard. The results can be used to support security assessment of large-capacity switch electrical short-circuit experiment base accessing to system.

Key words: Gansu power grid, experiment base, electric switch, voltage sag

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