본문

서브메뉴

Non-Invasive Arc Duration Measurement based on Different Physical Emissions
Non-Invasive Arc Duration Measurement based on Different Physical Emissions
Non-Invasive Arc Duration Measurement based on Different Physical Emissions

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105504
ISBN  
9798263325909
DDC  
690
저자명  
Guo, Ning.
서명/저자  
Non-Invasive Arc Duration Measurement based on Different Physical Emissions
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
179 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Graber, Lukas.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약The objective of this research is to develop a robust online non-invasive arc duration measurement method in the substation, which is a critical factor for circuit breaker online contact erosion estimation and implementation of condition-based and reliability-centered maintenance practices. In this research, different arc duration measurement methods using various physical signals, including very-low-frequency and low-frequency magnetic field, vibration, and sound signals are proposed. Each method, however, has its limitations. For the method based on very-low-frequency and low-frequency magnetic field, although the waveform signatures can indicate the arc initiation and extinction time, their susceptibility to contact geometry changes caused by contact erosion restricts the application scenarios of this method. The domain-adaptive method based on vibration and sound signals, on the other hand, can achieve a high accuracy (below 0.2 ms) comparable to existing techniques and exhibit robustness against noise interference and domain shift, which existing methods lack. However, the method requires representative substation data to train neural networks. Eventually, a decision-level fusion strategy is proposed. This strategy can combine existing and proposed methods to address the limitations that cannot be solved by a single method individually and enhance the accuracy and robustness of arc duration measurement in the substation.
일반주제명  
Cooling
일반주제명  
Wavelet transforms
일반주제명  
Magnetic fields
일반주제명  
Electric fields
일반주제명  
Metal fatigue
일반주제명  
Neural networks
일반주제명  
Adaptation
일반주제명  
Copper
일반주제명  
Design
일반주제명  
Adhesive wear
일반주제명  
Heat
일반주제명  
Gas flow
일반주제명  
Atoms & subatomic particles
일반주제명  
Atomic physics
일반주제명  
Materials science
일반주제명  
Mathematics
일반주제명  
Electromagnetics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008260126s2024        us                              c    eng  d
■001000017360303
■00520260202105504
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798263325909
■035    ▼a(MiAaPQ)AAI32307971
■035    ▼a(MiAaPQ)GeorgiaTech78552
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a690
■1001  ▼aGuo,  Ning.
■24510▼aNon-Invasive  Arc  Duration  Measurement  based  on  Different  Physical  Emissions
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a179  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Graber,  Lukas.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aThe  objective  of  this  research  is  to  develop  a  robust  online  non-invasive  arc  duration  measurement  method  in  the  substation,  which  is  a  critical  factor  for  circuit  breaker  online  contact  erosion  estimation  and  implementation  of  condition-based  and  reliability-centered  maintenance  practices.  In  this  research,  different  arc  duration  measurement  methods  using  various  physical  signals,  including  very-low-frequency  and  low-frequency  magnetic  field,  vibration,  and  sound  signals  are  proposed.  Each  method,  however,  has  its  limitations.  For  the  method  based  on  very-low-frequency  and  low-frequency  magnetic  field,  although  the  waveform  signatures  can  indicate  the  arc  initiation  and  extinction  time,  their  susceptibility  to  contact  geometry  changes  caused  by  contact  erosion  restricts  the  application  scenarios  of  this  method.  The  domain-adaptive  method  based  on  vibration  and  sound  signals,  on  the  other  hand,  can  achieve  a  high  accuracy  (below  0.2  ms)  comparable  to  existing  techniques  and  exhibit  robustness  against  noise  interference  and  domain  shift,  which  existing  methods  lack.  However,  the  method  requires  representative  substation  data  to  train  neural  networks.  Eventually,  a  decision-level  fusion  strategy  is  proposed.  This  strategy  can  combine  existing  and  proposed  methods  to  address  the  limitations  that  cannot  be  solved  by  a  single  method  individually  and  enhance  the  accuracy  and  robustness  of  arc  duration  measurement  in  the  substation.
■590    ▼aSchool  code:  0078.
■650  4▼aCooling
■650  4▼aWavelet  transforms
■650  4▼aMagnetic  fields
■650  4▼aElectric  fields
■650  4▼aMetal  fatigue
■650  4▼aNeural  networks
■650  4▼aAdaptation
■650  4▼aCopper
■650  4▼aDesign
■650  4▼aAdhesive  wear
■650  4▼aHeat
■650  4▼aGas  flow
■650  4▼aAtoms  &  subatomic  particles
■650  4▼aAtomic  physics
■650  4▼aMaterials  science
■650  4▼aMathematics
■650  4▼aElectromagnetics
■690    ▼a0389
■690    ▼a0800
■690    ▼a0748
■690    ▼a0794
■690    ▼a0405
■690    ▼a0607
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360303▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF18971 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.