Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters
In recent years, there has been a considerable increase in the use of DC power equipment in the industry, making it crucial for insulation materials to withstand high DC electric fields. The current integration method (Q(t) measurement) is one of the most useful and effective methods to measure the...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10464308/ |
| _version_ | 1797243313387995136 |
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| author | Ryota Kitani Shinya Iwata Tomoka Tsuya Hiroaki Uehara Tatsuki Okamoto Tatsuo Takada |
| author_facet | Ryota Kitani Shinya Iwata Tomoka Tsuya Hiroaki Uehara Tatsuki Okamoto Tatsuo Takada |
| author_sort | Ryota Kitani |
| collection | DOAJ |
| description | In recent years, there has been a considerable increase in the use of DC power equipment in the industry, making it crucial for insulation materials to withstand high DC electric fields. The current integration method (Q(t) measurement) is one of the most useful and effective methods to measure the time dependency of charges. However, the mathematical/physical model of Q(t) measurement is not advanced because obtained data are not completely analyzed, particularly the methods in which delay parameters affect the charge saturation time of insulators. In this study, we analyze the delay property of Q(t) data by solving differential equations with some approximations. In addition, sample sheets of polyimide and polyethylene terephthalate are tested for experimental purposes. The results indicate that circuit properties can be estimated from the analysis of experimental Q(t) data based on the assumption of a circuit model. The proposed analysis method can be used for further discussions regarding the analytical estimation of timing of charge saturation, and the relationship between circuit models and the space charges phenomenon. |
| first_indexed | 2024-04-24T18:53:08Z |
| format | Article |
| id | doaj.art-9f971a3315024e96ac61554a15f04015 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-24T18:53:08Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-9f971a3315024e96ac61554a15f040152024-03-26T17:49:08ZengIEEEIEEE Access2169-35362024-01-0112391523916510.1109/ACCESS.2024.337533210464308Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay ParametersRyota Kitani0https://orcid.org/0000-0001-7151-2933Shinya Iwata1https://orcid.org/0000-0002-5431-457XTomoka Tsuya2https://orcid.org/0009-0001-0283-8304Hiroaki Uehara3https://orcid.org/0000-0002-3199-1789Tatsuki Okamoto4https://orcid.org/0000-0003-3599-7878Tatsuo Takada5https://orcid.org/0000-0003-3629-5966Osaka Research Institute of Industrial Science and Technology, Izumi, JapanOsaka Research Institute of Industrial Science and Technology, Izumi, JapanOsaka Research Institute of Industrial Science and Technology, Izumi, JapanDepartment of Electrical and Electronic Engineering, Kanto Gakuin University, Kanazawa-ku, Yokohama, JapanInstitute of Science and Technology, Kanto Gakuin University, Kanazawa-ku, Yokohama, JapanTokyo City University, Setagaya-ku, Tokyo, JapanIn recent years, there has been a considerable increase in the use of DC power equipment in the industry, making it crucial for insulation materials to withstand high DC electric fields. The current integration method (Q(t) measurement) is one of the most useful and effective methods to measure the time dependency of charges. However, the mathematical/physical model of Q(t) measurement is not advanced because obtained data are not completely analyzed, particularly the methods in which delay parameters affect the charge saturation time of insulators. In this study, we analyze the delay property of Q(t) data by solving differential equations with some approximations. In addition, sample sheets of polyimide and polyethylene terephthalate are tested for experimental purposes. The results indicate that circuit properties can be estimated from the analysis of experimental Q(t) data based on the assumption of a circuit model. The proposed analysis method can be used for further discussions regarding the analytical estimation of timing of charge saturation, and the relationship between circuit models and the space charges phenomenon.https://ieeexplore.ieee.org/document/10464308/Circuit analysiscircuit modelinsulatorQ(t) measurementparameter estimation |
| spellingShingle | Ryota Kitani Shinya Iwata Tomoka Tsuya Hiroaki Uehara Tatsuki Okamoto Tatsuo Takada Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters IEEE Access Circuit analysis circuit model insulator Q(t) measurement parameter estimation |
| title | Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters |
| title_full | Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters |
| title_fullStr | Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters |
| title_full_unstemmed | Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters |
| title_short | Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters |
| title_sort | circuit models of q t data and analyses of saturation time dependency on delay parameters |
| topic | Circuit analysis circuit model insulator Q(t) measurement parameter estimation |
| url | https://ieeexplore.ieee.org/document/10464308/ |
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