bibo:abstract
  • This paper proposes a fuzzy decision making method for power transformer protection to identify an internal fault from other transient states such as inrush, over-excitation and an external fault with current transformer(CT) saturation. In this paper, analyzing over 300 EMTP simulations of disturbances, four input variables are selected and fuzzified. At every sampling interval from half to one cycle after a disturbance, from the EMTP simulations, different fuzzy rule base is composed of twelve if-then fuzzy rules associated with their basic probability assignments for singleton- or compound-support hypotheses. Dempster's rule of combination is used to process the fuzzy rules and get the final decision. A series of test results clearly indicate that the method can identify not only an internal fault but also the other transients. The average of relay operation times is about 12(㎳). The proposed method is implemented into a Digital Signal Processor(TMS320C31) and tested. (rdf:langString) (en)
nlon:biographicalNote
  • 강상희, 정회원, 명지대 전기정보제어공학부 부교수·공박, shkang (rdf:langString) (wh.myongji.ac.kr)
  • 강용철, 정회원, 전북대 전자정보공학부 전임강사·공박, yckang (rdf:langString) (moak.chonbuk.ac.kr)
  • 권태원, 준회원, 명지대 전기공학과 석사과정, dosto (rdf:langString) (wh.myongji.ac.kr)
  • 김상태, 정회원, 명지대 전기공학과 박사과정, miserere (rdf:langString) (wh.myongji.ac.kr)
  • 박종근, 정회원, 서울대 전기공학부 교수·공박, jkpark (rdf:langString) (plaza1.snu.ac.kr)
  • 이승재, 정회원, 명지대 전기정보제어공학부 교수·공박, sjlee (rdf:langString) (wh.myongji.ac.kr)
nlon:classificationNumberOfNLK
  • 560.5 (xsd:string)
nlon:containedIn
dc:creator
  • 강상희 (xsd:string)
  • 강용철 (xsd:string)
  • 권태원 (xsd:string)
  • 김상태 (xsd:string)
  • 박종근 (xsd:string)
  • 이승재 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • Disturbance state identification of power transformer based on dempster's rule of combination (xsd:string)
bibframe:extent
  • 30 cm (xsd:string)
  • p. 1479-1485 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1999 (xsd:string)
nlon:itemNumberOfNLK
  • 대483ㄱㄱ (xsd:string)
rdfs:label
  • Dempster 결합룰에 의한 전력용 변압기 외란상태 판정 / 姜相熙, 李承宰,權泰元,金尙泰,姜龍澈,朴鍾根 (xsd:string)
dcterms:language
dc:subject
  • Basic probability assignmant (xsd:string)
  • Dempster-Shafer's theory of evidence (xsd:string)
  • Fuzzy decision making (xsd:string)
  • Power transformer protection (xsd:string)
  • Protective relay (xsd:string)
  • 변압기 보호용 퍼지 로직 (xsd:string)
  • 퍼지 결정 방식 (xsd:string)
dcterms:title
  • Dempster 결합룰에 의한 전력용 변압기 외란상태 판정 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 48(10)-48(12) (xsd:string)