bibo:abstract
  • The current flowing though a power line is measured by a current transformer (CT). Since a CT is a kind of transformer, saturation of magnetic flux in the core may occur when a large primary current flows. This saturation makes the secondary current of a CT distorted and causes problems in the protection point of view. Because of the current distortion, a protection relay cannot collect the correct information showing how the primary power system changed. Consequently, the current distortion may cause the mal-operation or operation time delay of protective relay. In this project, an algorithm based on AR model and LSQ is proposed to compensate the saturated CT secondary currents. Various test results indicate that the proposed algorithm can accurately compensate a severely distorted secondary current and is not affected by remanence. This paper concludes by describing the hardware implementation of the algorithm based on a digital signal processor (rdf:langString) (en)
nlon:biographicalNote
  • 강상희, 명지대학 전기공학과 교수·공박 (xsd:string)
  • 이동규, 명지대학 전기공학과 박사과정 (xsd:string)
  • 장수영, 명지대학 전기공학과 석사과정 (xsd:string)
nlon:classificationNumberOfNLK
  • 505 (xsd:string)
nlon:containedIn
dc:creator
  • 강상희 (xsd:string)
  • 이동규 (xsd:string)
  • 장수영 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • AR model and LSQ based compensation method for a saturated CT (xsd:string)
bibframe:extent
  • 27 cm (xsd:string)
  • p. 136-142 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 2006 (xsd:string)
nlon:itemNumberOfNLK
  • 명416ㅅ (xsd:string)
rdfs:label
  • AR 모델 및 LSQ 기반 변류기 2차 전류 복원 기법 / 張洙榮, 李東圭,姜相熙 (xsd:string)
dcterms:language
dc:subject
  • AR model (xsd:string)
  • AR 모델 (xsd:string)
  • CT saturation (xsd:string)
  • Compensation (xsd:string)
  • LSQ 기반 변류기 (xsd:string)
  • Saturation detection (xsd:string)
dcterms:title
  • AR 모델 및 LSQ 기반 변류기 2차 전류 복원 기법 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 25 (xsd:string)