电器与能效管理技术 ›› 2023, Vol. 0 ›› Issue (2): 35-38.doi: 10.16628/j.cnki.2095-8188.2023.02.007

• 电气设计与探讨 • 上一篇    下一篇

基于热备用线路的联合备用电源自动投入方法

马骏毅, 赵杰, 吴林, 刘昶, 朱江渝   

  1. 国网江苏省电力有限公司 镇江供电分公司, 江苏 镇江 212000
  • 收稿日期:2022-05-15 出版日期:2023-02-28 发布日期:2023-03-21
  • 作者简介:马骏毅(1987—),男,高级工程师,主要从事电网调控运行工作。|赵 杰(1991—),男,工程师,主要从事电网调控运行工作。|吴 林(1990—),男,工程师,主要从事电网调控运行工作。
  • 基金资助:
    国网江苏省电力有限公司科技项目(J2016067)

Automatic Switching Method of Combined Standby Power Supply Based on Hot Standby Line

MA Junyi, ZHAO Jie, WU Lin, LIU Chang, ZHU Jiangyu   

  1. Zhenjiang Power Supply Branch,State Grid Jiangsu Electric Power Co.,Ltd., Zhenjiang 212000, China
  • Received:2022-05-15 Online:2023-02-28 Published:2023-03-21

摘要:

针对城市电网电缆线路大量使用后造成容性无功过大的问题,提出基于热备用线路的联合备用电源自动投入方法。在电源侧和负荷侧配置备自投装置,通过两者配合动作,既能解决变电站容性无功过高,改善变电站电压水平,提升电网整体运行水平,又能有效避免主供线路永久故障时大面积停电事故的发生,实现电网自愈,提高供电可靠性。

关键词: 城市电缆, 容性无功, 热备用线路, 联合备用电源自动投入

Abstract:

Aiming at the problem of large capacity reactive power causeol by the extensive use of cable lines in urban power grid,the automatic switching method of combined standby power supply based on hot standby line is put forward.The automatic switching devices on the power supply side and on the load side are quipped.By combining the two devices,the substation’s capacitive reactive power is solved and the voltage level is improved.The occurrence of large-scale blackouts can be effectively avoided when the main supply line is permanently faulty,the self-healing of power grid can be realized and the power supply reliability can be improved.

Key words: urban cable, capacitive reactive power, hot spare line, combined automatic backup power supply

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