基于赋值法的电力系统远动信息仿生化建模分析  

Biomimetic modeling analysis of power system telematics information based on assignment method

作　　者：张洪略 陈胜 王家军 万毅 石家德 ZHANG Honglue;CHEN Sheng;WANG Jiajun;WAN Yi;SHI Jiade(Power Dispatching Control Center,Guizhou Power Grid Co.,Ltd.,Guiyang 550000,China;Xingyi Power Supply Bureau of Guizhou Power Grid Co.,Ltd.,Xingyi 562400,China;Duyun Power Supply Bureau,Guizhou Power Grid Co.,Ltd.,Duyun 558000,China;Kaili Power Supply Bureau of Guizhou Power Grid Co.,Ltd.,Kaili 556000,China)

机构地区：[1]贵州电网有限责任公司电力调度控制中心,贵州贵阳550000 [2]贵州电网有限责任公司兴义供电局,贵州兴义562400 [3]贵州电网有限责任公司都匀供电局,贵州都匀558000 [4]贵州电网有限责任公司凯里供电局,贵州凯里556000

出　　处：《电子设计工程》2022年第20期180-184,共5页Electronic Design Engineering

摘　　要：受到信息来源与传输过程不稳定性的影响,电力系统远动信息分析结果精准度较低,针对此类问题,提出了基于赋值法的电力系统远动信息仿生化建模分析。分析了电力系统远动通信结构,建立了与远动通信有关的逻辑节点模型,确定了信息对象和属性关系,并以此建立了电力系统远动信息的仿生化模型;采用主观阈值与客观阈值线性加权的方法,确定了综合阈值,获得电力系统远动信息异常预警指标,判断电力系统远动信息是否存在异常。由实验结果可知,该方法负序电压长时间不平衡度低于0.24%,短时间不平衡度低于0.45%,能够精准识别电力系统远动异常信息。Affected by the instability of information sources and transmission process,the accuracy of power system telecontrol information analysis results is low.In order to solve this problem,a power system telecontrol information bionic modeling analysis based on assignment method is proposed.This paper analyzes the structure of telecontrol communication in power system,establishes the logical node model related to telecontrol communication,determines the information object and attribute relationship,and establishes the bionic model of telecontrol information in power system;Using the method of linear weighting of subjective threshold and objective threshold,the comprehensive threshold is determined,and the early warning index of power system telecontrol information abnormality is obtained to judge whether there is abnormality in power system telecontrol information.The experimental results show that the longtime unbalance degree of negative sequence voltage is less than 0.24%,and the short-time unbalance degree is less than 0.45%,which can accurately identify the abnormal information of power system telecontrol.

关 键 词：赋值法 电力系统 远动信息 仿生化建模 

分 类 号：TN914[电子电信—通信与信息系统]