Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration
An inrush current will be generated inside a converter transformer during no-load switching on or off. The inrush current will cause severe vibration of the winding and other components of the converter transformer. However, the current research on the vibration characteristics caused by the inrush...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/13/7192 |
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| author | Jinzhuang Lv Zhanlong Zhang Jun Deng Zhicheng Pan Heng Wu Haibin Zhou Wenhao He Yu Yang |
| author_facet | Jinzhuang Lv Zhanlong Zhang Jun Deng Zhicheng Pan Heng Wu Haibin Zhou Wenhao He Yu Yang |
| author_sort | Jinzhuang Lv |
| collection | DOAJ |
| description | An inrush current will be generated inside a converter transformer during no-load switching on or off. The inrush current will cause severe vibration of the winding and other components of the converter transformer. However, the current research on the vibration characteristics caused by the inrush current is insufficient, and the influence of the converter transformer components cannot be effectively evaluated. Therefore, this paper discusses the building of an electromagnetic transient model of no-load closing of a conventional DC converter station, and analyzes the time–frequency characteristics of the inrush current under different working conditions. The finite element model based on the actual converter transformer was built and verified. The vibration characteristics of some converter transformer components under excitation of the inrush current were studied. The research results can monitor the vibration of a converter transformer under different working conditions, and can avoid the damage of converter transformer components caused by an excessive inrush current. |
| format | Article |
| id | doaj-art-46154e6ca9cf4b47af5e51fdc1de9284 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-46154e6ca9cf4b47af5e51fdc1de92842025-08-20T03:16:52ZengMDPI AGApplied Sciences2076-34172025-06-011513719210.3390/app15137192Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer VibrationJinzhuang Lv0Zhanlong Zhang1Jun Deng2Zhicheng Pan3Heng Wu4Haibin Zhou5Wenhao He6Yu Yang7Maintenance and Test Centre, EHV, China Southern Power Grid, Guangzhou 510663, ChinaSchool of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaMaintenance and Test Centre, EHV, China Southern Power Grid, Guangzhou 510663, ChinaMaintenance and Test Centre, EHV, China Southern Power Grid, Guangzhou 510663, ChinaMaintenance and Test Centre, EHV, China Southern Power Grid, Guangzhou 510663, ChinaMaintenance and Test Centre, EHV, China Southern Power Grid, Guangzhou 510663, ChinaSchool of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaAn inrush current will be generated inside a converter transformer during no-load switching on or off. The inrush current will cause severe vibration of the winding and other components of the converter transformer. However, the current research on the vibration characteristics caused by the inrush current is insufficient, and the influence of the converter transformer components cannot be effectively evaluated. Therefore, this paper discusses the building of an electromagnetic transient model of no-load closing of a conventional DC converter station, and analyzes the time–frequency characteristics of the inrush current under different working conditions. The finite element model based on the actual converter transformer was built and verified. The vibration characteristics of some converter transformer components under excitation of the inrush current were studied. The research results can monitor the vibration of a converter transformer under different working conditions, and can avoid the damage of converter transformer components caused by an excessive inrush current.https://www.mdpi.com/2076-3417/15/13/7192converter transformermagnetizing inrush currenttime–frequency characteristicsvibration characteristics |
| spellingShingle | Jinzhuang Lv Zhanlong Zhang Jun Deng Zhicheng Pan Heng Wu Haibin Zhou Wenhao He Yu Yang Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration Applied Sciences converter transformer magnetizing inrush current time–frequency characteristics vibration characteristics |
| title | Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration |
| title_full | Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration |
| title_fullStr | Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration |
| title_full_unstemmed | Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration |
| title_short | Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration |
| title_sort | study on the time frequency characteristics of excitation inrush current and its induced converter transformer vibration |
| topic | converter transformer magnetizing inrush current time–frequency characteristics vibration characteristics |
| url | https://www.mdpi.com/2076-3417/15/13/7192 |
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