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时间:2020-03-28
《基于区间数灰色模糊综合评判的继电保护维修决策方法研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第42卷第4期电力系统保护与控制Vo1.42NO.42014年2月16日PowerSystemProtectionandControlFeb.16.2O14基于区间数灰色模糊综合评判的继电保护维修决策方法研究张媛,覃剑2王谦,陈伟,张海兵(1.国网重庆市电力公司电力科学研究院,重庆401123;2.重庆大学通信工程学院,重庆400044)摘要:针对继电保护维修决策评判因素具有灰色模糊性和区间取值的特点,提出了一种基于区间数灰色模糊理论的维修决策方法。该方法在确定影响继电保护维修决策的6个主要因素的基础上,建立了包含4个维修方案的评判体系。考虑到评判因素灰部和模部间的相互影响,利用0W
2、A(有序加权平均)算子对各方案的因素值进行集结,并对区间灰色模糊教进行运算,计算出各个方案的综合评判值,进而优选出更贴近实际的维修方案。最后以某RCS-931BM型继电保护装置及其二次回路为例进行维修方案优选,验证了该方法的可行性和有效性关键词:继电保护;维修决策;区间数;灰色模糊综合评判:OWA算子Researchonmaintenancedecision—makingmethodofrelayprotectionbasedonintervalnumbersgreyfuzzycomprehensiveevaluationZHANGYuan,QINJian,WANGQian,CHEN
3、Wei,ZHANGHaibing(1.ElectricPowerResearchInstitute,StateGridChongqingElectricPowerCorporation,Chongqing401123,China;2.CollegeofCommunicationEngineering,ChongqingUniversity,Chongqing400044,China)Abstract:Sincetheevaluationfactorspossessgreyfuzzyandintervalvalues’featureswhilethemaintenancedecisio
4、n—makingofrelayprotectionisperformed,anintervalnumbersgreyfuzzytheorybasedmaintenancedecision—makingmethodisproposed.Onthebasisofdecidingsixprincipalfactorsofinfluencingmaintenancedecision—makingofrelayprotection,anevaluationsystemincludingfourmaintenanceprojectsisestablished.Consideringtheinte
5、ractionbetweenthegreypartandfuzzypartofevaluationfactors,thisorderedweightedaveraging(OWA)operatorisusedtoaggregatethefactorvaluesofeveryproject,andtheintervalgreyfuzzynumbersarecalculated,thecomprehensiveevaluationvalueofeveryprojectisworkedout,thenamorepracticalmaintenanceprojectispreferred.T
6、akingatypeRCS一931BMrelayprotectiondeviceandthesecondarycircuitforexample,theoptimalmaintenanceprojectisselectedandthefeasibilityandvalidityoftheproposedmethodisvalidated.ThisworkissupportedbyNationalHigh—techResearchandDevelopmentProgramofChina(863Program)(No.2011AA05A120).Keywords:relayprotect
7、ion;maintenancedecision-making;intervalnumbers;greyfuzzycomprehensiveevaluation;OWAoperator中图分类号:TM774文献标识码:A文章编号:1674.3415(2014)04—0016—06决策过程中考虑的评判因素过于简单。方法③运算0引言时需要已知大量系统数据,数据量小时计算精度偏状态维修决策是以设备状态为基础,结合实验低。方法④主要运用模糊理论进行维修决策分析。测量
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