摘要
为实现配电网络中发生电能质量扰动事件时的扰动源自动、精确定位,提出一种基于链表和矩阵运算的电能质量扰动事件源三级自动定位算法。采用有根树和链表共同描述网络的拓扑结构,并基于遍历搜索算法自动生成系统链路信息表和监测覆盖矩阵。利用链表法进行扰动馈线子区域的快速预判后,基于矩阵算法实现扰动事件源的初步判定,并定义"虚拟电能质量监测仪"和扩展矩阵以实现模糊项的排除。算例分析表明,该算法不仅可实现配电网络中电能质量扰动源的自动、精确定位,而且具有简洁直观、计算量小、适于计算机编程实现等优点。
To automaiically and accurately locate the PQD（Power Quality Disturbance） sources in distribution network, a three-level automatic locating algorithm based on ＂the chain table and the matrix algorithm is put forward. The rooted tree and the chain table are used to describe the network topology and the system chain table and monitoring covering matrix of distribution network are automatically generated by the traversing search. The sub-region of feeder with PQD is predicted with the chain table method. The PQD event source is then preliminarily identified with the matrix algorithm,and the virtual power quality monitor and extended matrix are defined to remove the fuzzy terms. The proposed algorithm is simple and suitable for programming with low computational load,and case study shows that it locates the PQD sources automatically and accurately.
出处
《电力自动化设备》
EI
CSCD
北大核心
2011年第10期12-16,共5页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(50777057)
浙江省自然科学基金重点项目(Z1110893)~~
关键词
配电网
电能质量
监测
扰动源
定位
链表
矩阵算法
electric power distribution
power quality
monitoring
disturbance source
locating
chain table
matrix algorithm
