多级数据模糊融合选线新方法  

New Fault Line Selection Method of Multilevel Fuzzy Data Fusion

作　　者：赵建文[1] 李科[1] 随晓娜[1] 李鹤[2] 石国龙 

机构地区：[1]西安科技大学电气工程与控制学院,西安710054 [2]国网宿州供电公司,宿州234000

出　　处：《电力系统及其自动化学报》2016年第2期56-60,共5页Proceedings of the CSU-EPSA

基　　金：陕西省科技厅计划项目(2015GY049);陕西省教育厅专项科研计划项目(2013JK0867)

摘　　要：为进一步提高配电网中压系统故障选线的可靠性以及准确性,提出一种基于多级数据模糊融合的故障选线方法。该方法以3种优势互补单一判据选线方法作为模糊融合的基础,构造3种选线方法相对性的隶属度函数并进行一级模糊融合,但考虑到模糊故障选线过程各种不确定性,又提出了多级模糊融合的方法,选用合适的模糊算子进行数据多级模糊融合,得到故障选线结果。文中分别对中性点不接地系统和中性点经消弧线圈接地系统两种故障系统进行模糊多级数据融合,融合结果表明,该方法可提高故障选线的可靠性。In order to enhance the reliability and veracity of selection fault line in medium voltage system,this articleput forward the multilevel fuzzy data fusion method to selection fault line. Choosen three single criterion methods of com-plementary advantages as a basis for the fuzzy data fusion,this paper constructs corresponding membership functionand carries through primary fuzzy fusion by taking account of various uncertainty factors of process in selection faultline. So a method of multilevel fuzzy data fusion is proposed to selection fault line,to select appropriate fuzzy operatorsto multilevel fuzzy data fusion. Then get a consequence of selection fault line.This article aims at multilevel fuzzy datafusion to neutral ungrounding system and neutral resonant grounding system,and fusion results show that this methodcan improve the reliability of selection fault line.

关 键 词：多重判据融合 模糊算子 小波选线 负序选线 信息融合 

分 类 号：TM711[电气工程—电力系统及自动化]