中国电力 ›› 2018, Vol. 51 ›› Issue (6): 60-66.DOI: 10.11930/j.issn.1004-9649.201706109

• 电网 • 上一篇    下一篇

变电站主变短路电压参数优化设计方法

赵帅, 张来, 雷光宇, 高毅, 赵高帅, 武娇雯, 方菲, 宋洋   

  1. 国网天津市电力公司经济技术研究院, 天津 300171
  • 收稿日期:2017-06-20 修回日期:2018-03-19 出版日期:2018-06-05 发布日期:2018-06-12
  • 作者简介:赵帅(1986-),男,博士,工程师,从事电力系统数字仿真、稳定性分析与控制、电力系统规划设计技术研究,E-mail:zm_darst19860702@126.com
  • 基金资助:
    国家自然科学基金资助项目(51677124);国网天津市电力公司科技项目(KJ17-1-06)。

Optimization Design Method of Short Circuit Voltage of Main Transformer in Substation

ZHAO Shuai, ZHANG Lai, LEI Guangyu, GAO Yi, ZHAO Gaoshuai, WU Jiaowen, FANG Fei, SONG Yang   

  1. State Grid Tianjin Economic Research Institute, Tianjin 300171, China
  • Received:2017-06-20 Revised:2018-03-19 Online:2018-06-05 Published:2018-06-12
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No.51677124) and the Science and Technology of State Grid Tianjin Electric Power Company (No.KJ17-1-06).

摘要: 合理选取主变压器短路电压参数是变电站规划设计阶段的重要技术问题之一,其关系到整个变电站运行过程中的安全性、可靠性与经济性。首先,基于适用于短路电流计算的变压器的短路电压模型,利用理论分析建立短路电压参数与短路电流、无功补偿装置问题之间的函数关系。在此基础上,提出考虑短路电流、无功补偿容量双重约束的变压器短路电压参数优化设计方法。以典型220 kV变电站为例,用所提方法对变电站主变短路电压参数进行优化,验证所提方法正确、有效。

关键词: 短路电流, 无功补偿, 短路阻抗, 变电站

Abstract: Appropriate selection of the short circuit voltage of the main transformer is one of the key problems in the planning and design of the substation, which determines the security, reliability, and economy during the substation operation. Firstly, functional relationships are established theoretically based on the impedance model of transformer available for the short circuit analysis. The functional relationships contain parameters of short circuit voltage and short circuit current, parameters of short circuit voltage and reactive power compensation. On these bases, the optimization design method is presented considering two constraints, including short circuit current level and reactive compensation capacity. Case study on the design of typical 220 kV substation verifies the correctness and effectiveness of the proposed method for the optimization of the parameters of short circuit voltage.

Key words: short circuit current, reactive power compensation, short circuit impedance, substation

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