数字通信保护应用于航站楼10kV供电系统的可行性分析

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摘要针对传统分段式电流保护在航站楼10kV供电系统应用中存在速动段无保护范围、故障切除时间长等问题,提出一种采用允许式动作逻辑的电流保护,该保护在传统分段式电流保护的基础上优化配置、整定,并借助数字通信技术实现全线故障速切的功能。本文阐述保护在不同工况下的动作逻辑,分析其速动性、选择性、可靠性,并建议保护采用IEC 61850/面向通用对象的变电站事件（GOOSE）通信方式。

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	钟素梅
	闫石

关键词 ：航站楼, 10kV供电系统, 继电保护, 数字通信保护, 允许式动作逻辑

Abstract：As the instantaneous protection zone of sectional over-current protection is none and time of faults clearing is long in 10kV power system of airport terminal, a over-current protection with operational logic of permitting is proposed based on improvement of sectional over-current protection, which supports fast protection for whole transmission lines by the information exchange between protections. Its speed, selectivity and reliability are analyzed by operational logic of faults, and communication scheme of IEC 61850/ general object oriented substation events (GOOSE) is suggested.

Key words： airport terminal 10kV power system relay protection digital communication pro- tection operational logic of permitting

收稿日期: 2022-07-14

作者简介: 钟素梅（1986—）,女,工程师,从事地铁供电设备运行与维护技术管理工作。

引用本文:

钟素梅, 闫石. 数字通信保护应用于航站楼10kV供电系统的可行性分析[J]. 电气技术, 2022, 23(11): 99-102. ZHONG Sumei, YAN Shi. Feasibility analysis of digital communication protection applied to 10kV power system in airport terminal. Electrical Engineering, 2022, 23(11): 99-102.

链接本文:

http://dqjs.cesmedia.cn/CN/Y2022/V23/I11/99