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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
- Atomic physics
- 일반주제명
- Materials science
- 일반주제명
- Mathematics
- 일반주제명
- Electromagnetics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■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.


