Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于有限遥测数据的中压有源配电网拓扑识别

来源:电工电气发布时间:2024-08-30 13:30 浏览次数:22

基于有限遥测数据的中压有源配电网拓扑识别

郝金宝,王亮,王鹏,顾家如
(国网江苏省电力有限公司苏州供电分公司,江苏 苏州 215004)
 
    摘 要:分布式电源(DG)的大规模接入给中压配电网的保护及自愈等带来了严重的挑战,而解决这一问题首先需要判断分布式电源在有源配电网中的具体接入位置及容量。基于基尔霍夫电流定律,阐述了中压有源配电网中开关柜电流与中压分布式光伏及配变的电流关系,针对目前一些地区存在的配网开关柜未投入电压采集功能,从而无法对潮流方向进行遥测的问题,建立了有源配电网拓扑识别的数学模型,并提出改进的牛顿迭代法对该拓扑识别模型进行求解,实现了光伏与开闭所馈供开关之间关联关系的判别。通过算例仿真验证了所提模型和算法的有效性。
    关键词: 有源配电网;遥测数据;拓扑识别;牛顿迭代法;分布式电源;开关柜
    中图分类号:TM727 ;TM734     文献标识码:A     文章编号:1007-3175(2024)08-0042-06
 
Topology Identification of Medium Voltage Active Distribution
Network Based on Limited Telemetry Data
 
HAO Jin-bao, WANG Liang, WANG Peng, GU Jia-ru
(Suzhou Power Supply Company of State Grid Jiangsu Electric Power Co., Ltd, Suzhou 215004, China)
 
    Abstract: The large-scale access of distributed generation (DG) has brought serious challenges to the protection and self-healing of medium-voltage distribution networks. To solve this problem, it is first necessary to determine the specific access location and capacity of distributed generation in active distribution networks. Based on Kirchhoff’s current law, this paper firstly introduces the current relation between switchgear current and medium-voltage distributed photovoltaics and distribution transformers in medium-voltage active distribution network. Aiming at the function of voltage acquisition is not put into the distribution switchgear in some areas at present, which it is not possible to telemetry the direction of the current, established a mathematical model of topology identification of active distribution network and proposed an improved Newton’s iteration method to solve the topology recognition model. Then, the identification of the correlation relationship between photovoltaics, and the on-off feed switch is realized, and the effectiveness of the proposed model and algorithm is verified by simulation examples.
    Key words: active distribution network; telemetry data; topology identification; Newton’s iteration method; distributed generation; switchgear
 
参考文献
[1] 王雷. 基于 IEC 61850 标准的开闭所监控终端 DTU 模型研究[D]. 北京:华北电力大学,2012.
[2] BRINT A,POURSHARIF G,BLACK M,et al .Using grouped smart meter data in phase identification[J].Computers & Operations Research,2018,96 :213-222.
[3] 李晖,刘栋,姚丹阳. 面向碳达峰碳中和目标的我国电力系统发展研判[J] . 中国电机工程学报,2021,41(18) :6245-6258.
[4] 刘健,林涛,李龙,等. 分布式光伏接入情况下配电自动化系统的适应性[J] . 电力系统保护与控制,2014,42(20) :7-12.
[5] 梁营玉,卢正杰. 基于补偿系数的有源配电网自适应电流差动保护[J]. 电网技术,2022,46(6) :2268-2275.
[6] LUAN W, PENG J, MARAS M, et al. Smart meter data analytics for distribution network connectivity verification[J].IEEE Transactions on Smart Grid,2015,6(4) :1964-1971.
[7] 冯人海,赵政,谢生,等. 基于主成分分析和凸优化的低压配电网拓扑识别方法[J]. 天津大学学报(自然科学与工程技术版),2021,54(7) :746-753.
[8] 武奕彤. 智能配电网分布式拓扑识别与应用方法[J] .电力系统保护与控制,2019,47(16) :136-142.
[9] 刘凯,李镇海,吕利,等. 基于聚类分析的配电台区拓扑识别方法[J] . 电力系统保护与控制,2022,50(6) :165-171.
[10] ZHOU Lai, ZHANG Yongjun, LIU Siliang, et al.Consumer phase identification in low-voltage distribution network con-sidering vacant users[J].International Journal of Electrical Power & Energy Systems,2020(12) :79-106.
[11] 危阜胜,蔡永智,唐捷,等. 基于加权最小二乘法的低压配电台区拓扑自动识别方法[J]. 电力电容器与无功补偿,2021,42(5) :122-129.
[12] 张巍,徐进,刘家鹏. 基于分支有功功率的低压有源配电网拓扑辨识方法[J] . 电力系统自动化,2022,46(15) :85-95.
[13] 杨志淳, 沈煜, 杨帆, 等. 基于数据关联分析的低压配电网拓扑识别方法[J] . 电测与仪表,2020,57(18) :5-11.
[14] 高美金,诸言涵,张啸,等. 含逆变型分布式电源配电网的中性点接地电阻选取[J] . 浙江电力,2022,41(3) :11-19.
[15] 尚宇炜,周莉梅,马钊,等. 数字化主动配电系统初探[J]. 中国电机工程学报,2022,42(5) :1760-1772.
[16] 王宁, 韩国栋, 高厚磊, 等. 有源配电网电流差动保护判据研究[J] . 电力系统保护与控制,2023,51(7) :14-23.
[17] 牛任恺,张鑫磊,王玉君,等. 基于数据挖掘的电力营销稽查业务监管系统[J]. 吉林大学学报(信息科学版),2022,40(1) :103-110.
[18] 唐捷,蔡永智,周来,等. 基于数据驱动的低压配电网线户关系识别方法[J] . 电力系统自动化,2020,44(11) :127-134.
[19] 申科,王建赜,班明飞,等. 基于粒子群优化的模块化多电平变换器阶梯波调制策略[J] . 电力自动化设备,2014,34(4) :78-83.
[20] 钱佳琦,江岳文. 少环配电网节点边际容量成本研究[J].现代电力,2016,33(3) :43-47.