变电站直流系统母联开关的运行特点及位置判断  

Predict the abnormal discharge curve characteristics of the battery pack

作　　者：胡怡 HU Yi(Huizhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Huizhou 516000,China)

机构地区：[1]广东电网有限责任公司惠州供电局,广东惠州516000

出　　处：《技术与市场》2022年第2期83-84,87,共3页Technology and Market

摘　　要：我国电力事业伴随着经济发展逐步提升,近年来为切实改善电力缺口、强化电力网络构架,在推进变电站规划建设的同时,也进一步提升了变电站的运维管理。变电站直流系统作为站内保护、测控等关键设备的电源,需要时刻保障其可靠性、安全性。当直流系统的一组蓄电池组需要进行核对性放电试验时,需要合上母联开关,由另一组蓄电池组供两段直流母线电源,确保直流负荷的稳定供电。因此确认母联开关位置是否合闸到位显得至关重要。基于直流系统运行状态,分析了现有母联开关的工作方式,提出了一种适用于变电站母联开关位置检测的新方法。China’s electric power industry has been gradually upgraded along with economic development.In recent years,in order to effectively improve the power supply gap and strengthen the power network structure,the operation and maintenance management of substations has been further enhanced while promoting the planning and construction of substations.The DC system of substation,as the power source of key equipment such as station protection,measurement and control,needs to ensure its reliable safety at all times.When a group of battery of DC system needs to carry out check discharge test,it is necessary to close the bus tie switch,and another group of battery bank will supply power to the two DC system to ensure stable power supply of DC load.Therefore,it is crucial to confirm whether the position of the bus tie switch is closed in place.Based on the operation status of DC system,this paper analyzes the working mode of existing bus tie switch and proposes a new method applicable to the detection of busbar switch position in substations.

关 键 词：变电站 直流系统 母联开关 

分 类 号：TM63[电气工程—电力系统及自动化]