Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines
Inter-turn winding faults in five-phase ferrite-permanent magnet-assisted synchronous reluctance motors (fPMa-SynRMs) can lead to catastrophic consequences if not detected in a timely manner, since they can quickly progress into more severe short-circuit faults, such as coil-to-coil, phase-to-ground...
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Online Access: | https://www.mdpi.com/1996-1073/12/14/2733 |
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doaj-def41c7d6ea64e2d8d0dd4ef21ef85f62020-11-25T00:29:17ZengMDPI AGEnergies1996-10732019-07-011214273310.3390/en12142733en12142733Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance MachinesCarlos Candelo-Zuluaga0Jordi-Roger Riba1Carlos López-Torres2Antoni Garcia3Electrical Engineering Department, Universitat Politècnica de Catalunya, 08222 Terrassa, SpainElectrical Engineering Department, Universitat Politècnica de Catalunya, 08222 Terrassa, SpainElectrical Engineering Department, Universitat Politècnica de Catalunya, 08222 Terrassa, SpainElectrical Engineering Department, Universitat Politècnica de Catalunya, 08222 Terrassa, SpainInter-turn winding faults in five-phase ferrite-permanent magnet-assisted synchronous reluctance motors (fPMa-SynRMs) can lead to catastrophic consequences if not detected in a timely manner, since they can quickly progress into more severe short-circuit faults, such as coil-to-coil, phase-to-ground or phase-to-phase faults. This paper analyzes the feasibility of detecting such harmful faults in their early stage, with only one short-circuited turn, since there is a lack of works related to this topic in multi-phase fPMa-SynRMs. Two methods are tested for this purpose, the analysis of the spectral content of the zero-sequence voltage component (ZSVC) and the analysis of the stator current spectra, also known as motor current signature analysis (MCSA), which is a well-known fault diagnosis method. This paper compares the performance and sensitivity of both methods under different operating conditions. It is proven that inter-turn faults can be detected in the early stage, with the ZSVC providing more sensitivity than the MCSA method. It is also proven that the working conditions have little effect on the sensitivity of both methods. To conclude, this paper proposes two inter-turn fault indicators and the threshold values to detect such faults in the early stage, which are calculated from the spectral information of the ZSVC and the line currents.https://www.mdpi.com/1996-1073/12/14/2733multi-phase machinesrare-earth free machinessynchronous reluctance machinefault diagnosisinter-turn faultsfinite-element method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Carlos Candelo-Zuluaga Jordi-Roger Riba Carlos López-Torres Antoni Garcia |
spellingShingle |
Carlos Candelo-Zuluaga Jordi-Roger Riba Carlos López-Torres Antoni Garcia Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines Energies multi-phase machines rare-earth free machines synchronous reluctance machine fault diagnosis inter-turn faults finite-element method |
author_facet |
Carlos Candelo-Zuluaga Jordi-Roger Riba Carlos López-Torres Antoni Garcia |
author_sort |
Carlos Candelo-Zuluaga |
title |
Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines |
title_short |
Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines |
title_full |
Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines |
title_fullStr |
Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines |
title_full_unstemmed |
Detection of Inter-Turn Faults in Multi-Phase Ferrite-PM Assisted Synchronous Reluctance Machines |
title_sort |
detection of inter-turn faults in multi-phase ferrite-pm assisted synchronous reluctance machines |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2019-07-01 |
description |
Inter-turn winding faults in five-phase ferrite-permanent magnet-assisted synchronous reluctance motors (fPMa-SynRMs) can lead to catastrophic consequences if not detected in a timely manner, since they can quickly progress into more severe short-circuit faults, such as coil-to-coil, phase-to-ground or phase-to-phase faults. This paper analyzes the feasibility of detecting such harmful faults in their early stage, with only one short-circuited turn, since there is a lack of works related to this topic in multi-phase fPMa-SynRMs. Two methods are tested for this purpose, the analysis of the spectral content of the zero-sequence voltage component (ZSVC) and the analysis of the stator current spectra, also known as motor current signature analysis (MCSA), which is a well-known fault diagnosis method. This paper compares the performance and sensitivity of both methods under different operating conditions. It is proven that inter-turn faults can be detected in the early stage, with the ZSVC providing more sensitivity than the MCSA method. It is also proven that the working conditions have little effect on the sensitivity of both methods. To conclude, this paper proposes two inter-turn fault indicators and the threshold values to detect such faults in the early stage, which are calculated from the spectral information of the ZSVC and the line currents. |
topic |
multi-phase machines rare-earth free machines synchronous reluctance machine fault diagnosis inter-turn faults finite-element method |
url |
https://www.mdpi.com/1996-1073/12/14/2733 |
work_keys_str_mv |
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