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Void Partial Discharge Simulation Under a Repetitive Frequency Square Wave with Different Overshoot Rates.

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Title: Void Partial Discharge Simulation Under a Repetitive Frequency Square Wave with Different Overshoot Rates.
Authors: Guo, Ruizhou1 (AUTHOR), Jin, Tao1,2 (AUTHOR), Wang, Wei1,2 (AUTHOR), An, Ruifeng1,2 (AUTHOR), Wu, Pan1 (AUTHOR), Yan, Shuquan1 (AUTHOR), Cong, Lin1 (AUTHOR), Cheng, Yinzhang1 (AUTHOR), Lei, Zhipeng2 (AUTHOR) leizhipeng@tyut.edu.cn
Source: Energies (19961073). Jan2026, Vol. 19 Issue 1, p135. 14p.
Subjects: Partial discharges, Square waves, Finite element method, Electrical engineering, Computer simulation, Transients (Dynamics), Dielectric breakdown
Abstract: Long-term partial discharge (PD) erosion is an important factor causing insulation failure. With the rapid development of power electronics and the widespread application of inverters, more insulation is subjected to repetitive frequency square wave signals. To understand the void PD characteristics of insulation subjected to repetitive frequency square wave signals, a finite element simulation model of void PD is established based on the ABC model. A time-domain waveform and a phase-resolved partial discharge (PRPD) plot of void PD under repetitive frequency square wave with different overshoot rates are simulated. Then, void PD is measured under different overshoot rates and compared with the simulation results. Finally, the influence of overshoot voltage on internal discharge is analyzed. The simulation and experimental results show that the overshoot rate positively correlates with statistical characteristics, such as the average PD number and maximum PD quantity. Void PD events mainly occur in the overshoot portion of the repetitive frequency square wave. Therefore, the overshoot portion of the repetitive frequency square wave is one of the key factors contributing to severe PD in insulation. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Void Partial Discharge Simulation Under a Repetitive Frequency Square Wave with Different Overshoot Rates.
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jan2026, Vol. 19 Issue 1, p135. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Partial+discharges%22">Partial discharges</searchLink><br /><searchLink fieldCode="DE" term="%22Square+waves%22">Square waves</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Electrical+engineering%22">Electrical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Transients+%28Dynamics%29%22">Transients (Dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+breakdown%22">Dielectric breakdown</searchLink>
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  Data: Long-term partial discharge (PD) erosion is an important factor causing insulation failure. With the rapid development of power electronics and the widespread application of inverters, more insulation is subjected to repetitive frequency square wave signals. To understand the void PD characteristics of insulation subjected to repetitive frequency square wave signals, a finite element simulation model of void PD is established based on the ABC model. A time-domain waveform and a phase-resolved partial discharge (PRPD) plot of void PD under repetitive frequency square wave with different overshoot rates are simulated. Then, void PD is measured under different overshoot rates and compared with the simulation results. Finally, the influence of overshoot voltage on internal discharge is analyzed. The simulation and experimental results show that the overshoot rate positively correlates with statistical characteristics, such as the average PD number and maximum PD quantity. Void PD events mainly occur in the overshoot portion of the repetitive frequency square wave. Therefore, the overshoot portion of the repetitive frequency square wave is one of the key factors contributing to severe PD in insulation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/en19010135
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        Text: English
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    Subjects:
      – SubjectFull: Partial discharges
        Type: general
      – SubjectFull: Square waves
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      – SubjectFull: Finite element method
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      – SubjectFull: Electrical engineering
        Type: general
      – SubjectFull: Computer simulation
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      – SubjectFull: Transients (Dynamics)
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      – SubjectFull: Dielectric breakdown
        Type: general
    Titles:
      – TitleFull: Void Partial Discharge Simulation Under a Repetitive Frequency Square Wave with Different Overshoot Rates.
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              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
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