Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference
The very fast transient overvoltage/overcurrent (VFTO/VFTC) signals generated during disconnectors switching operation may result in a significant threat to the reliability of power grids. While there are several commercial types of disconnectors, there is still a lack of understanding of the electr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723004985 |
| _version_ | 1797692013761527808 |
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| author | Zhenhua Li Siqi Jia Ahmed Abu-Siada Yue Tong Tao Zhang Gang Liu |
| author_facet | Zhenhua Li Siqi Jia Ahmed Abu-Siada Yue Tong Tao Zhang Gang Liu |
| author_sort | Zhenhua Li |
| collection | DOAJ |
| description | The very fast transient overvoltage/overcurrent (VFTO/VFTC) signals generated during disconnectors switching operation may result in a significant threat to the reliability of power grids. While there are several commercial types of disconnectors, there is still a lack of understanding of the electromagnetic interference characteristics that is generated during the very fast transient process of the disconnectors. Based on the transient voltage and current data of disconnector capacitive small current test, this paper extracts the characteristics of the corresponding macropulse and monopulse waveforms. Also, the paper presents a comprehensive statistical analysis of the transient waveform characteristic data through probability density function fitting and Kolmogorov–Smirnov (K–S) test of the sample cumulative empirical distribution. The statistical results show that the probability density distribution of the switching operation macropulse waveform follows generalized extreme value and inverse gaussian distribution. The maximum peak values of VFTO and VFTC monopulse are found to be 50 kV and 370 A with a respective rise time at the range of nano- and micro-seconds. The frequency bands of VFTO and VFTC macro waveforms are basically distributed within 16 MHz. Results of this paper can pave the way into a more scientific basis for the design of disconnectors considering the strong electromagnetic disturbance and the formulation of system level electromagnetic compatibility standard tests, ensure the safe and stable operation of the power grid. |
| first_indexed | 2024-03-12T02:22:28Z |
| format | Article |
| id | doaj.art-c49aabeaa53d442ca86ced73375bf3bb |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-12T02:22:28Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-c49aabeaa53d442ca86ced73375bf3bb2023-09-06T04:51:52ZengElsevierEnergy Reports2352-48472023-09-01913041314Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interferenceZhenhua Li0Siqi Jia1Ahmed Abu-Siada2Yue Tong3Tao Zhang4Gang Liu5Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, China Three Gorges University, YiChang, 443002, China; College of Electrical Engineering & New Energy, China Three Gorges University, YiChang 443002, ChinaHubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, China Three Gorges University, YiChang, 443002, China; College of Electrical Engineering & New Energy, China Three Gorges University, YiChang 443002, China; Corresponding author at: College of Electrical Engineering & New Energy, China Three Gorges University, YiChang 443002, China.Electrical and Computer Engineering Discipline, Curtin University, Perth, WA6102, AustraliaChina Electric Power Research Institute Co., Ltd., Wuhan 430074, ChinaHubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, China Three Gorges University, YiChang, 443002, China; College of Electrical Engineering & New Energy, China Three Gorges University, YiChang 443002, ChinaExtra-High Voltage Transmission Company of State Grid Hunan Electric Power Co., Ltd, Hengyang 421002, ChinaThe very fast transient overvoltage/overcurrent (VFTO/VFTC) signals generated during disconnectors switching operation may result in a significant threat to the reliability of power grids. While there are several commercial types of disconnectors, there is still a lack of understanding of the electromagnetic interference characteristics that is generated during the very fast transient process of the disconnectors. Based on the transient voltage and current data of disconnector capacitive small current test, this paper extracts the characteristics of the corresponding macropulse and monopulse waveforms. Also, the paper presents a comprehensive statistical analysis of the transient waveform characteristic data through probability density function fitting and Kolmogorov–Smirnov (K–S) test of the sample cumulative empirical distribution. The statistical results show that the probability density distribution of the switching operation macropulse waveform follows generalized extreme value and inverse gaussian distribution. The maximum peak values of VFTO and VFTC monopulse are found to be 50 kV and 370 A with a respective rise time at the range of nano- and micro-seconds. The frequency bands of VFTO and VFTC macro waveforms are basically distributed within 16 MHz. Results of this paper can pave the way into a more scientific basis for the design of disconnectors considering the strong electromagnetic disturbance and the formulation of system level electromagnetic compatibility standard tests, ensure the safe and stable operation of the power grid.http://www.sciencedirect.com/science/article/pii/S2352484723004985Isolating switchVery fast transientWaveform parametersProbability density estimationStatistical analysis |
| spellingShingle | Zhenhua Li Siqi Jia Ahmed Abu-Siada Yue Tong Tao Zhang Gang Liu Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference Energy Reports Isolating switch Very fast transient Waveform parameters Probability density estimation Statistical analysis |
| title | Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| title_full | Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| title_fullStr | Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| title_full_unstemmed | Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| title_short | Analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| title_sort | analysis of statistical method and variation characteristic parameters of very fast transient electromagnetic interference |
| topic | Isolating switch Very fast transient Waveform parameters Probability density estimation Statistical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723004985 |
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