Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement
Space charge measurement accuracy is crucial when assessing the suitability of cables for high-voltage direct current (DC) systems. This study assembled state-of-the-art analysis technologies, including time-domain deconvolution, to mark electric field estimation accuracy, which the present techniqu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/13/4920 |
| _version_ | 1797480076313362432 |
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| author | Norikazu Fuse Shosuke Morita Satoru Miyazaki Toshihiro Takahashi Naohiro Hozumi |
| author_facet | Norikazu Fuse Shosuke Morita Satoru Miyazaki Toshihiro Takahashi Naohiro Hozumi |
| author_sort | Norikazu Fuse |
| collection | DOAJ |
| description | Space charge measurement accuracy is crucial when assessing the suitability of cables for high-voltage direct current (DC) systems. This study assembled state-of-the-art analysis technologies, including time-domain deconvolution, to mark electric field estimation accuracy, which the present techniques achieve. The pulse electroacoustic method was applied to a 66 kV-class extruded cable, and waveforms were obtained and analyzed to reproduce the electric field distribution. The DC voltage was set to be sufficiently low so that the analysis results can be compared with Laplace’s equation. The statistical analysis of 81 waveforms under a DC voltage of 30 kV showed that the estimation accuracy was −0.3% ± 19.9% with a 95.4% confidence interval, even with the deconvolution parameter optimized. The estimated accuracy using the “reference” waveform is applied to waveforms at higher voltages since similar estimation accuracies were confirmed for waveforms obtained under a DC voltage of 45 kV. |
| first_indexed | 2024-03-09T21:54:57Z |
| format | Article |
| id | doaj.art-8ac8504b03494422a57f89b3e7296552 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:54:57Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8ac8504b03494422a57f89b3e72965522023-11-23T19:59:36ZengMDPI AGEnergies1996-10732022-07-011513492010.3390/en15134920Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge MeasurementNorikazu Fuse0Shosuke Morita1Satoru Miyazaki2Toshihiro Takahashi3Naohiro Hozumi4Grid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, JapanGrid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, JapanGrid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, JapanGrid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, JapanDept. Electrical & Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, JapanSpace charge measurement accuracy is crucial when assessing the suitability of cables for high-voltage direct current (DC) systems. This study assembled state-of-the-art analysis technologies, including time-domain deconvolution, to mark electric field estimation accuracy, which the present techniques achieve. The pulse electroacoustic method was applied to a 66 kV-class extruded cable, and waveforms were obtained and analyzed to reproduce the electric field distribution. The DC voltage was set to be sufficiently low so that the analysis results can be compared with Laplace’s equation. The statistical analysis of 81 waveforms under a DC voltage of 30 kV showed that the estimation accuracy was −0.3% ± 19.9% with a 95.4% confidence interval, even with the deconvolution parameter optimized. The estimated accuracy using the “reference” waveform is applied to waveforms at higher voltages since similar estimation accuracies were confirmed for waveforms obtained under a DC voltage of 45 kV.https://www.mdpi.com/1996-1073/15/13/4920power cablesspace charge measurementpulsed electroacoustic methodfield distributionestimation accuracydeconvolution |
| spellingShingle | Norikazu Fuse Shosuke Morita Satoru Miyazaki Toshihiro Takahashi Naohiro Hozumi Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement Energies power cables space charge measurement pulsed electroacoustic method field distribution estimation accuracy deconvolution |
| title | Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement |
| title_full | Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement |
| title_fullStr | Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement |
| title_full_unstemmed | Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement |
| title_short | Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement |
| title_sort | estimation accuracy of the electric field in cable insulation based on space charge measurement |
| topic | power cables space charge measurement pulsed electroacoustic method field distribution estimation accuracy deconvolution |
| url | https://www.mdpi.com/1996-1073/15/13/4920 |
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