Charge Accumulation Dependence on Electric Field, Temperature, and Voltage Application Time in Polymeric Insulating Materials by Current-Integrated Charge Method

Uehara, Hiroaki; Iwata, Shinya; Kitani, Ryota; Okamoto, Tatsuki; Takada, Tatsuo

doi:10.1109/tdei.2023.3332312

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2024

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Cited by 5 publications

References 25 publications

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Optimization method for geometric shape of DC GIL insulators based on electric thermal multi-physics field coupling model

Shao

2024

Electr Eng

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Optimization method for geometric shape of DC GIL insulators based on electric thermal multi-physics field coupling model

Shao

2024

Electr Eng

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Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters

Kitani,

Iwata,

Tsuya

et al. 2024

IEEE Access

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In recent years, there has been a considerable increase in the use of DC power equipment in the industry, making it crucial for insulation materials to withstand high DC electric fields. The current integration method (Q(t) measurement) is one of the most useful and effective methods to measure the time dependency of charges. However, the mathematical/physical model of Q(t) measurement is not advanced because obtained data are not completely analyzed, particularly the methods in which delay parameters affect the charge saturation time of insulators. In this study, we analyze the delay property of Q(t) data by solving differential equations with some approximations. In addition, sample sheets of polyimide and polyethylene terephthalate are tested for experimental purposes. The results indicate that circuit properties can be estimated from the analysis of experimental Q(t) data based on the assumption of a circuit model. The proposed analysis method can be used for further discussions regarding the analytical estimation of timing of charge saturation, and the relationship between circuit models and the space charges phenomenon.

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Evaluation of Behavior of Q(t) Measurement and Noise Effects

Kitan,

Iwata,

Tsuya

2024

2024 IEEE 5th International Conference on Dielectrics (ICD)

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Charge Accumulation Dependence on Electric Field, Temperature, and Voltage Application Time in Polymeric Insulating Materials by Current-Integrated Charge Method

Cited by 5 publications

References 25 publications

Optimization method for geometric shape of DC GIL insulators based on electric thermal multi-physics field coupling model

Optimization method for geometric shape of DC GIL insulators based on electric thermal multi-physics field coupling model

Circuit Models of Q(t) Data and Analyses of Saturation Time Dependency on Delay Parameters

Evaluation of Behavior of Q(t) Measurement and Noise Effects

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