Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform
Abstract The protection of traditional high‐voltage capacitor banks relies on an unbalance relay which operates when an internal fuse is blown. However, the unbalance relay cannot indicate the cause of the fault. Thus, an operator wastes time and human resources investigating the fault issues. In th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-11-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12999 |
| _version_ | 1797640036238229504 |
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| author | Pathomthat Chiradeja Praikanok Lertwanitrot Atthapol Ngaopitakkul Chaichan Pothisarn |
| author_facet | Pathomthat Chiradeja Praikanok Lertwanitrot Atthapol Ngaopitakkul Chaichan Pothisarn |
| author_sort | Pathomthat Chiradeja |
| collection | DOAJ |
| description | Abstract The protection of traditional high‐voltage capacitor banks relies on an unbalance relay which operates when an internal fuse is blown. However, the unbalance relay cannot indicate the cause of the fault. Thus, an operator wastes time and human resources investigating the fault issues. In this paper, a fault which occurred in a 230‐kV power system of Electricity Generating Authority of Thailand was observed by performing simulations using the Power Systems Computer Aided Design (PSCAD) program. The study system based on the double bus station and 72 MVAR capacitor banks was installed in the form of a back‐to‐back topology. Three scenarios were considered: normal condition, fault occurrence in one capacitor bank and fault occurrence in both capacitor banks. Current characteristics such as the current phase and difference in unbalance current were considered. In addition, discrete wavelet transform was applied to solve the ambiguity of current generated from the PSCAD. The authors’ results suggest that identifying fault events using a coefficient of wavelet is more efficient than relying on the current amplitude. The findings mentioned in this paper can be applied in a traditional power system protection scheme to enhance a system's reliability. |
| first_indexed | 2024-03-11T13:26:08Z |
| format | Article |
| id | doaj.art-150b992b031b4050b5444ff0bd7cdac9 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-03-11T13:26:08Z |
| publishDate | 2023-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-150b992b031b4050b5444ff0bd7cdac92023-11-03T06:13:53ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-11-0117214810482510.1049/gtd2.12999Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transformPathomthat Chiradeja0Praikanok Lertwanitrot1Atthapol Ngaopitakkul2Chaichan Pothisarn3Faculty of Engineering Srinakharinwirot University Bangkok ThailandElectricity Generating Authority of Thailand Nonthaburi ThailandSchool of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok ThailandSchool of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok ThailandAbstract The protection of traditional high‐voltage capacitor banks relies on an unbalance relay which operates when an internal fuse is blown. However, the unbalance relay cannot indicate the cause of the fault. Thus, an operator wastes time and human resources investigating the fault issues. In this paper, a fault which occurred in a 230‐kV power system of Electricity Generating Authority of Thailand was observed by performing simulations using the Power Systems Computer Aided Design (PSCAD) program. The study system based on the double bus station and 72 MVAR capacitor banks was installed in the form of a back‐to‐back topology. Three scenarios were considered: normal condition, fault occurrence in one capacitor bank and fault occurrence in both capacitor banks. Current characteristics such as the current phase and difference in unbalance current were considered. In addition, discrete wavelet transform was applied to solve the ambiguity of current generated from the PSCAD. The authors’ results suggest that identifying fault events using a coefficient of wavelet is more efficient than relying on the current amplitude. The findings mentioned in this paper can be applied in a traditional power system protection scheme to enhance a system's reliability.https://doi.org/10.1049/gtd2.12999capacitor bankdiscrete wavelet transformfault locationpower system transientssubstation |
| spellingShingle | Pathomthat Chiradeja Praikanok Lertwanitrot Atthapol Ngaopitakkul Chaichan Pothisarn Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform IET Generation, Transmission & Distribution capacitor bank discrete wavelet transform fault location power system transients substation |
| title | Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform |
| title_full | Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform |
| title_fullStr | Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform |
| title_full_unstemmed | Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform |
| title_short | Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform |
| title_sort | behaviour analysis of h bridge high voltage capacitor banks fault on 230 kv substation using discrete wavelet transform |
| topic | capacitor bank discrete wavelet transform fault location power system transients substation |
| url | https://doi.org/10.1049/gtd2.12999 |
| work_keys_str_mv | AT pathomthatchiradeja behaviouranalysisofhbridgehighvoltagecapacitorbanksfaulton230kvsubstationusingdiscretewavelettransform AT praikanoklertwanitrot behaviouranalysisofhbridgehighvoltagecapacitorbanksfaulton230kvsubstationusingdiscretewavelettransform AT atthapolngaopitakkul behaviouranalysisofhbridgehighvoltagecapacitorbanksfaulton230kvsubstationusingdiscretewavelettransform AT chaichanpothisarn behaviouranalysisofhbridgehighvoltagecapacitorbanksfaulton230kvsubstationusingdiscretewavelettransform |