Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current
Corona inception voltage is of great significance for the design of ultra‐high‐voltage direct current transmission lines. In this study, based on the change rule of frequency‐domain characteristics of corona current, a new method for calculating corona inception voltage is proposed. First, corona cu...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-10-01
|
| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/iet-gtd.2016.1226 |
| _version_ | 1811162703336570880 |
|---|---|
| author | Yingyi Liu Lijuan Zhou Yuanqing Liu Haiwen Yuan Liang Ji |
| author_facet | Yingyi Liu Lijuan Zhou Yuanqing Liu Haiwen Yuan Liang Ji |
| author_sort | Yingyi Liu |
| collection | DOAJ |
| description | Corona inception voltage is of great significance for the design of ultra‐high‐voltage direct current transmission lines. In this study, based on the change rule of frequency‐domain characteristics of corona current, a new method for calculating corona inception voltage is proposed. First, corona current waveforms are collected through experiments and the range of measuring voltages is determined according to the frequency spectrum characteristics of corona current. Then, the curves representing the relationship between the change rate of corona current octave power and the voltage at different centre frequencies (6–20 kHz) are obtained through least‐square fitting. The voltage at which the fitted curve reaches the first peak value with the rise of voltage is identified as corona inception voltage. Finally, with the proposed method, the corona inception voltage for a six bundled conductor system in the biggest outdoor corona cage of the world is obtained. Combined with the experimental results of A‐weighted sound level of audible noise, the comparisons between the obtained corona inception voltage and that calculated with I/U−U curve fitting method, I−U curve fitting method and an audible noise‐based method prove that the proposed method is reasonable. |
| first_indexed | 2024-04-10T06:33:35Z |
| format | Article |
| id | doaj.art-f8fa0e8029dc41ff893241499b96e007 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-04-10T06:33:35Z |
| publishDate | 2017-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-f8fa0e8029dc41ff893241499b96e0072023-03-01T04:51:01ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952017-10-0111153783379010.1049/iet-gtd.2016.1226Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona currentYingyi Liu0Lijuan Zhou1Yuanqing Liu2Haiwen Yuan3Liang Ji4School of Automation Science and Electrical EngineeringBeihang UniversityXueYuan Road No. 37, Hai Dian DistrictBeijingPeople's Republic of ChinaSchool of Automation Science and Electrical EngineeringBeihang UniversityXueYuan Road No. 37, Hai Dian DistrictBeijingPeople's Republic of ChinaDepartment of High Voltage EngineeringChina Electric Power Research InstituteQing He Xiao Ying East Road No. 15, Hai Dian DistrictBeijingPeople's Republic of ChinaSchool of Automation Science and Electrical EngineeringBeihang UniversityXueYuan Road No. 37, Hai Dian DistrictBeijingPeople's Republic of ChinaMinistry of Science and TechnologyState Grid Smart Grid Research InstituteChang Ping DistrictBeijingPeople's Republic of ChinaCorona inception voltage is of great significance for the design of ultra‐high‐voltage direct current transmission lines. In this study, based on the change rule of frequency‐domain characteristics of corona current, a new method for calculating corona inception voltage is proposed. First, corona current waveforms are collected through experiments and the range of measuring voltages is determined according to the frequency spectrum characteristics of corona current. Then, the curves representing the relationship between the change rate of corona current octave power and the voltage at different centre frequencies (6–20 kHz) are obtained through least‐square fitting. The voltage at which the fitted curve reaches the first peak value with the rise of voltage is identified as corona inception voltage. Finally, with the proposed method, the corona inception voltage for a six bundled conductor system in the biggest outdoor corona cage of the world is obtained. Combined with the experimental results of A‐weighted sound level of audible noise, the comparisons between the obtained corona inception voltage and that calculated with I/U−U curve fitting method, I−U curve fitting method and an audible noise‐based method prove that the proposed method is reasonable.https://doi.org/10.1049/iet-gtd.2016.1226corona inception voltage calculationfrequency 6 kHz to 20 kHzaudible noise‐based methodcurve fitting methodweighted sound levelsix bundled conductor system |
| spellingShingle | Yingyi Liu Lijuan Zhou Yuanqing Liu Haiwen Yuan Liang Ji Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current IET Generation, Transmission & Distribution corona inception voltage calculation frequency 6 kHz to 20 kHz audible noise‐based method curve fitting method weighted sound level six bundled conductor system |
| title | Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current |
| title_full | Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current |
| title_fullStr | Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current |
| title_full_unstemmed | Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current |
| title_short | Method for calculating corona inception voltage of ultra‐high‐voltage direct current transmission lines with frequency‐domain characteristics of corona current |
| title_sort | method for calculating corona inception voltage of ultra high voltage direct current transmission lines with frequency domain characteristics of corona current |
| topic | corona inception voltage calculation frequency 6 kHz to 20 kHz audible noise‐based method curve fitting method weighted sound level six bundled conductor system |
| url | https://doi.org/10.1049/iet-gtd.2016.1226 |
| work_keys_str_mv | AT yingyiliu methodforcalculatingcoronainceptionvoltageofultrahighvoltagedirectcurrenttransmissionlineswithfrequencydomaincharacteristicsofcoronacurrent AT lijuanzhou methodforcalculatingcoronainceptionvoltageofultrahighvoltagedirectcurrenttransmissionlineswithfrequencydomaincharacteristicsofcoronacurrent AT yuanqingliu methodforcalculatingcoronainceptionvoltageofultrahighvoltagedirectcurrenttransmissionlineswithfrequencydomaincharacteristicsofcoronacurrent AT haiwenyuan methodforcalculatingcoronainceptionvoltageofultrahighvoltagedirectcurrenttransmissionlineswithfrequencydomaincharacteristicsofcoronacurrent AT liangji methodforcalculatingcoronainceptionvoltageofultrahighvoltagedirectcurrenttransmissionlineswithfrequencydomaincharacteristicsofcoronacurrent |