Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion
In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this crite...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en_US |
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MDPI AG
2012
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| Online Access: | http://hdl.handle.net/1721.1/70489 https://orcid.org/0000-0003-2228-2347 |
| _version_ | 1811093236786135040 |
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| author | Yang, Qing Wang, Rui Sima, Wenxia Jiang, Chilong Lan, Xing Zahn, Markus |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Yang, Qing Wang, Rui Sima, Wenxia Jiang, Chilong Lan, Xing Zahn, Markus |
| author_sort | Yang, Qing |
| collection | MIT |
| description | In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is presented. The arc channel is considered as an equivalent distributed parameter circuit model instead of using the arc voltage-gradient equation. The parameters of the arc model are obtained from the electromagnetic field distribution of the arc and the gas discharge theories. The arc root is considered as parallel paths including the polluted layer. The variation of the voltage on the arc root is related to the capability of arc propagation. This model takes the microscopic mechanism of arc root ionization into consideration, which can improve the accuracy of the flashover model. The results obtained from the presented model are in good agreement with other mathematical and experimental results. |
| first_indexed | 2024-09-23T15:42:05Z |
| format | Article |
| id | mit-1721.1/70489 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:42:05Z |
| publishDate | 2012 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | mit-1721.1/704892022-09-29T15:34:06Z Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion Yang, Qing Wang, Rui Sima, Wenxia Jiang, Chilong Lan, Xing Zahn, Markus Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. High Voltage Research Laboratory Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems Massachusetts Institute of Technology. Research Laboratory of Electronics Zahn, Markus Zahn, Markus In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is presented. The arc channel is considered as an equivalent distributed parameter circuit model instead of using the arc voltage-gradient equation. The parameters of the arc model are obtained from the electromagnetic field distribution of the arc and the gas discharge theories. The arc root is considered as parallel paths including the polluted layer. The variation of the voltage on the arc root is related to the capability of arc propagation. This model takes the microscopic mechanism of arc root ionization into consideration, which can improve the accuracy of the flashover model. The results obtained from the presented model are in good agreement with other mathematical and experimental results. National Basic Research Program of China (973 Program) (2009CB724507) National 111 Project of China (B08036) 2012-05-03T16:40:23Z 2012-05-03T16:40:23Z 2012-03 2012-03 Article http://purl.org/eprint/type/JournalArticle 1996-1073 http://hdl.handle.net/1721.1/70489 Yang, Qing et al. “Electrical Circuit Flashover Model of Polluted Insulators Under AC Voltage Based on the Arc Root Voltage Gradient Criterion.” Energies 5.3 (2012): 752–769. Web. 3 May 2012. https://orcid.org/0000-0003-2228-2347 en_US http://dx.doi.org/10.3390/en5030752 Energies Creative Commons Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ application/pdf MDPI AG MDPI |
| spellingShingle | Yang, Qing Wang, Rui Sima, Wenxia Jiang, Chilong Lan, Xing Zahn, Markus Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_full | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_fullStr | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_full_unstemmed | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_short | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_sort | electrical circuit flashover model of polluted insulators under ac voltage based on the arc root voltage gradient criterion |
| url | http://hdl.handle.net/1721.1/70489 https://orcid.org/0000-0003-2228-2347 |
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