Research and Design of a New Generation of Intensive Intelligent Ring Main Unit for Intelligent Operation and Maintenance

doi:10.11985/2020.04.016

Abstract

Abstract:

Traditional ring main unit is not intelligent, lack of equipment operation status information and low operation as well as maintenance efficiency. In order to solve these problems, a new generation of intensive intelligent ring main unit for intelligent operation and maintenance is studied. The intelligent construction design scheme of ring main unit is formed. Specifically, the SF₆ gas insulation ring main unit is divided into a sensing layer, a device layer, and a terminal layer in an architectural manner. Data streams are defined for each layer and combined with the Internet of things communication technology. In the horizontal direction, the intra-layer data interaction between devices is realized, and in the vertical direction, the inter-layer intelligent collaboration among sensors, primary devices, terminals, and master stations is realized. In this way, the various information of the ring network cabinet is integrated to the maximum extent. It provides technical support for advanced applications such as state monitoring,operation control, fault prediction, and intelligent operation as well as maintenance of the ring main unit.

Key words: Intelligent operation and maintenance, intension, intelligent ring main unit, condition monitoring

CLC Number:

TM591

ZHANG Yaoyu, KONG Xiangxuan, LIU Zhenxiang, CAI Guanglin. Research and Design of a New Generation of Intensive Intelligent Ring Main Unit for Intelligent Operation and Maintenance[J]. Journal of Electrical Engineering, 2020, 15(4): 128-137.

Figures/Tables 20

References 20

[1]	陈俊, 王勇, 黄慧红, 等. 基于多维度诊断技术的10 kV开关柜局放带电检测应用研究[J]. 供用电, 2016,33(2):64-68.
	CHEN Jun, WANG Yong, HUANG Huihong, et al. Research of 10 kV switchgear partial discharge charged detection application based on multi-dimension diagnostic techniques[J]. Distribution & Utilization, 2016,33(2):64-68.
[2]	李美, 王一玮, 李林, 等. 绝缘气体对开关柜内部故障燃弧压力上升的影响[J]. 电气工程学报, 2020,15(2):11-17.
	LI Mei, WANG Yiwei, LI Lin, et al. Influence of insulating gas on pressure rise due to internal fault arcing in switchgear[J]. Journal of Electrical Engineering, 2020,15(2):11-17.
[3]	刘建锋, 王守德, 王大伟, 等. 基于IEC61850标准的环网柜在线状态监测系统研究[J]. 电网与清洁能源, 2016,32(12):9-13.
	LIU Jianfeng, WANG Shoude, WANG Dawei, et al. Research on on-line monitoring system of RMU based on IEC61850 standard[J]. Power System and Clean Energy, 2016,32(12):9-13.
[4]	李天友, 黄超艺. 2017年国际供电会议配电设备发展新趋势[J]. 供用电, 2017,34(11):36,37-42.
	LI Tianyou, HUANG Chaoyi. New trend of distribution equipment development (CIRED 2017 S1)[J]. Distribution & Utilization, 2017,34(11):36,37-42.
[5]	HOIDALEN H K, RUNDE M. Continuous monitoring of circuit breakers using vibration analysis[J]. IEEE Transactions on Power Delivery, 2005,20(4):2458-2465. doi: 10.1109/TPWRD.2005.855486
[6]	田浩, 邢军, 杨敏. 10 kV环网柜温湿度综合智能监控系统的研究与实践[J]. 通信电源技术, 2018,35(8):23-26.
	TIAN Hao, XING Jun, YANG Min. Research and practice of integrated intelligent monitoring system of 10 kV ring net cabinet[J]. Telecom Power Technology, 2018,35(8):23-26.
[7]	张磊, 陈庚, 林闯, 等. 固体绝缘环网柜表面导电屏蔽接地涂层制备及性能研究[J]. 陕西电力, 2016,44(2):22-25.
	ZHANG Lei, CHEN Geng, LIN Chuang, et al. Preparation and performance study of conductive shield ground coating on solid insulation RMU surface[J]. Shaanxi Electric Power, 2016,44(2):22-25.
[8]	WANG L J, WANG Y, YI L I. Research on the on-line monitoring and early warning system of city power cable junctions malfunction[J]. China Electric Power, 2013(1):18-21.
[9]	崔金栋, 辛业春, 孙亮, 等. 一种环网柜的智能改造方案[J]. 农村电气化, 2015(1):50-51.
	CUI Jindong, XIN Yechun, SUN Liang, et al. Intelligent transformation scheme of ring network cabinet[J]. Rural Electrification, 2015(1):50-51.
[10]	卢国仪, 陈立纯, 高伟, 等. 基于ZigBee技术的开关柜温度在线监测终端设计[J]. 电气自动化, 2014(5):24-26.
	LU Guoyi, CHEN Lichun, GAO Wei, et al. Design of ZigBee-based on-line temperature monitoring terminal for the switch cabinet[J]. Electrical Automation, 2014(5):24-26.
[11]	LIU Shuguang, HUANG Xinbo, LI Pengfei. Research on switchgear contact temperature online monitoring based on Zigbee wireless network[C]// 2010 International Conference on Electrical and Control Engineering. Wuhan,China, 2010: 4136-4139.
[12]	韦磊, 缪巍巍, 赵新建. 配电自动化通信技术选择及建设方案[J]. 供用电, 2014(5):4,38-42.
	WEI Lei, MIU Weiwei, ZHAO Xinjian. The choice of communication technology and construction scheme of DA[J]. Distribution & Utilization, 2014(5):4, 38-42.
[13]	陈立东, 刘磊. 10 kV真空断路器永磁机构驱动电路设计[J]. 电工材料, 2017(6):44-47.
	CHEN Lidong, LIU Lei. Design of drive circuit for 10 kV vacuum ircuit breaker permanent magnet mechanism[J]. Electrical Engineering Materials, 2017(6):44-47.
[14]	SABEL T, UNTERBERGER S, REIN K R G . Application of quotient pyrometry to industrial pulverized coal combustion[J]. Experimental Thermal and Fluid Science, 2010,26(2):283-289. doi: 10.1016/S0894-1777(02)00138-3
[15]	王飞风, 蒙国斌, 苏毅, 等. 高压开关柜异常局放故障电场数值计算与分析[J]. 电气工程学报, 2019,14(2):115-120. doi: 10.11985/2019.02.020
	WANG Feifeng, MENG Guobin, SU Yi, et al. Numerical calculation and analysis of abnormal partial discharge electric field in high voltage switchgear[J]. Journal of Electrical Engineering, 2019,14(2):115-120.
[16]	毛永泉, 周子冠, 宋彦斌, 等. 基于LTE-230MHz无线专网的用电信息采集技术研究[J]. 供用电, 2015,32(12):1-7.
	MAO Yongquan, ZHOU Ziguan, SONG Yanbin, et al. Study on power consumption Information collection technology based on LTE-230MHz wireless private[J]. Distribution & Utilization, 2015,32(12):1-7.
[17]	GUAN S L, BAI X F, BAI Z X, et al. Effect of grounded coating on insulation performance for solid insulation ring main unit[C]// 2017 4th International Conference on Electric Power Equipment-Switching Technology (ICEPE-ST). Xi’an,China, 2017: 740-743.
[18]	魏永乐, 谭博学, 徐璐, 等. 集中式智能环网柜方案[J]. 山东理工大学学报, 2014,28(3):33-36.
	WEI Yongle, TAN Boxue, XU Lu, et al. Scheme of centralized intelligent ring main unit[J]. Journal of Shandong University of Technology, 2014,28(3):33-36.
[19]	STEPHEN B, SITRACHAN S M, MCARTHUR S D J, et al. Design of trip current monitoring system for circuit breaker condition assessment[J]. IET Generation Transmission and Distribution, 2007,1(1):89-95. doi: 10.1049/iet-gtd:20060074
[20]	虞金花, 章国宝. 一种智能开关柜监控系统高效数据传输控制方法[J]. 工业控制计算机, 2014(27-9):44-47.
	YU Jinhua, ZHANG Guobao. Efficient data transmission mechanism in intelligent monitoring system of switchboard[J]. Industrial Control Computer, 2014(27-9):44-47.

特征	智能环网柜	传统环网柜
柜体机构	基本本体结构、各类传感器、智能控制器、智能执行机构、DTU通信	基本本体结构 DTU通信
监测参数	电压、电流、温度、湿度、局放情况、SF₆浓度、分合闸状态等	电压、电流、分合闸状态
执行机构	永磁操作机构(电动) 柜体内调节机构	弹簧操作机构(手动/电动)
柜体内调节	具有对柜内温度、湿度等条件进行调节的机构	缺少相关装置
通信方式	柜体内无线传输、柜体外DTU通信(4G/光纤)	无或DTU通信(4G/光纤)实现“三遥”
运维方式	差异化运维、主站运维、人工巡检	定期检修人工巡检、
功能特点	线路开断分合闸线路运行状态监测环境状态监测环境状态调节健康评估故障预测等	线路开断分合闸线路运行状态监测