高压直流输电直流系统保护设备现场检验方法探索  

Exploration on Site Inspection Method of Protection Equipment for HVDC Transmission System

作　　者：叶志良 严伟 Ye Zhi-liang;Yan Wei

机构地区：[1]中国南方电网有限责任公司超高压输电公司广州局,广东广州510000

出　　处：《电力系统装备》2020年第8期81-82,共2页Electric Power System Equipment

摘　　要：因为现有的检验方法与装置缺乏有效性、可行性,不够简单便捷,所以高压直流输电直流系统保护设备在投运后,尚未进行定期检验工作,导致电网中留下了安全隐患.基于此,文章主要阐述了现场检验的原理,分析了外部施加激励量实现方法,并充分探讨了外部施加激励量实现方法与专用检验装置.文章所采用的方法具有成本低,安全风险小,不会对电网产生不良影响,无需解析光电转换协议,无需拆卸保护设备等优点,以期为业界人士提供一些有价值的参考.Because the existing inspection methods and devices lack effectiveness,feasibility,and are not simple and convenient,high-voltage DC transmission and DC system protection equipment has not yet undergone regular inspections after commissioning,resulting in hidden safety hazards in the power grid.Based on this,this article mainly explains the principle of fi eld inspection,analyzes the implementation method of externally applied stimulus,and fully discusses the implementation method and special inspection device of externally applied stimulus.It will have adverse effects on the power grid,do not need to analyze the photoelectric conversion protocol,and do not need to dismantle the protective equipment,etc.,in order to provide some valuable references for related industry people.

关 键 词：直流系统保护设备 高压直流输电 现场定期检验 光电式电流互感器 

分 类 号：TM721.1[电气工程—电力系统及自动化]