Closed-loop management on line loss indicators in a transformer area based on IoT

doi:10.3969/j.issn.1674-1951.2021.01.004

Abstract

Abstract:

Internet of Things（IoT） can identify,manage,and control the connected objects.Applying this technology in line loss management and exploring new line loss management model can reduce line loss scientifically.Thus,by integrating power consumption data collection system,marketing system,marketing GIS（geographic information system）and PMS2.0 system,a reasonable interval calculation model and a qualified rate judgment model of line loss in a transformer area were studied based on IoT,and then a line loss indicator management system based on IoT was established.This system realizes closed-loop management on line loss indicators in a transformer area,and provides scientific guidance for line loss reduction and support for the personnel making on-site troubleshooting.

Key words: line loss in a distribution area, Internet of Things, closed-loop management and control, BP neural network, fuzzy evaluation

CLC Number:

TM727.2

SU Yu, ZHOU Chuan, WANG Qianggang. Closed-loop management on line loss indicators in a transformer area based on IoT[J]. Huadian Technology, 2021, 43(1): 19-23.

Figures/Tables 8

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用户规模/万户	硬件要求
用户规模/万户	服务器数量	推荐服务器配置
10~1 000	1	16核中央处理器（CPU）, 主频2 GHz, 存储容量1 TB, 内存32 GB
>1 000~2 000	2
>2 000~3 000	4
>3 000~4 000	6
>4 000	8

系统名称	数据类型	数据名称
用电信息采集系统	台区档案	台区用户身份识别码（ID）、台区名称、台区容量、安装地址、运行状态
	台区用户日用电量	台区ID、用户编号、用户计量点信息、用户日电量、电量类型及倍率
	台区线损日统计	台区ID、台区供电量、售电量、线损电量、线损率
	公变负荷	公变计量点ID、电能表标志、电流互感器、电压互感器、综合倍率、abc三相电压、abc三相电流、有功总电能、无功总电能
	公变电量	计量点ID、电能表标志、正向有功总电能、反向有功总电能、Ⅰ~Ⅳ象限无功总电能
	低压电压	计量点ID、电能表标志、用户编号、abc三相电压
营销业务应用系统	变压器档案	变压器信息、变压器状态、变压器容量
营销业务应用系统	表箱-表计关系	表箱ID、电能表ID、电能表资产编号、计量点信息、终端及用户信息
营销GIS	变压器坐标	管理单位、变压器ID、变压器经纬度
	表箱坐标	管理单位、表箱ID、变压器经纬度等表箱坐标信息
	变压器-表箱- 接入点关系	变压器、表箱、接入点关系信息
PMS2.0	台区低压线路数据	台区ID、变压器ID、线路名称、线路类型

特征因子	正常值范围
上网电量百分比/%	0~100
末端电量百分比/%	0~100
功率因数	0.7~1.0
末端压降/V	-22~+22
三相不平衡度/%	0~100
负荷特性（负荷形状系数）	0~5
负载率/%	0~90
供电半径/m	0~5 000
网架结构	非空

台区编码	台区线损率/%			是否合格	采集理论线损率/%
台区编码	预测值	下限	上限	是否合格	采集理论线损率/%
2014062710361071	2.23	0.00	4.44	否	9.26
2014062710372325	2.55	0.00	5.14	是	3.04
2014062710374979	2.27	0.00	4.85	是	2.03
2014062710377229	4.31	0.00	7.58	是	5.74
2014062710387087	4.14	0.00	6.74	是	2.68
2014070110085910	4.15	0.00	6.76	是	3.99
2014070110089004	3.55	0.00	6.83	是	6.00
2014070110099328	2.85	0.00	5.06	是	3.96
2014070110102513	5.64	0.00	8.48	是	3.63
2015000189537194	3.60	0.00	6.87	是	3.89
2015000189548567	3.29	0.00	6.77	是	6.15
2015000189564379	3.02	0.00	4.89	是	3.32
2015000189566717	3.55	0.00	6.83	否	8.22
2015000189569966	6.98	0.00	9.57	是	4.03
2015000189620542	3.55	0.00	6.83	否	16.72
2015000189636584	3.55	0.00	6.83	是	4.53
2016000294751834	2.10	0.00	4.31	是	1.27
2016000321043398	2.49	0.00	4.70	否	5.99
2016000321643804	8.29	0.00	10.87	是	4.41
2017000368843225	3.55	0.00	6.83	否	7.46
2017000395187776	2.53	0.00	5.12	是	2.86
2017000401360772	2.24	0.00	4.44	是	1.43
2018000404944939	3.02	0.00	4.98	否	10.91
2018000439661525	1.56	0.00	3.77	否	7.52

台区编码	台区线损率/%		是否合格	采集理论线损率/%
台区编码	下限	上限	是否合格	采集理论线损率/%
2014062710361071	0.00	10.00	是	9.26
2014062710372325	0.00	10.00	是	3.04
2014062710374979	0.00	10.00	是	2.03
2014062710377229	0.00	10.00	是	5.74
2014062710387087	0.00	10.00	是	2.68
2014070110085910	0.00	10.00	是	3.99
2014070110089004	0.00	10.00	是	6.00
2014070110099328	0.00	10.00	是	3.96
2014070110102513	0.00	10.00	是	3.63
2015000189537194	0.00	10.00	是	3.89
2015000189548567	0.00	10.00	是	6.15
2015000189564379	0.00	10.00	是	3.32
2015000189566717	0.00	10.00	是	8.22
2015000189569966	0.00	10.00	是	4.03
2015000189620542	0.00	10.00	否	16.72
2015000189636584	0.00	10.00	是	4.53
2016000294751834	0.00	10.00	是	1.27
2016000321043398	0.00	10.00	是	5.99
2016000321643804	0.00	10.00	是	4.41
2017000368843225	0.00	10.00	是	7.46
2017000395187776	0.00	10.00	是	2.86
2017000401360772	0.00	10.00	是	1.43
2018000404944939	0.00	10.00	否	10.91
2018000439661525	0.00	10.00	是	7.52