Electrical field analysis of press-pack IGBTs

Fu, Pengyu; Zhao, Zhibin; Cui, Xiang; Zhang, Peng; Han, Ronggang

doi:10.1109/apcap.2017.8420704

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…Moreover, electric field analysis under this working voltage is also conducted extensively [25,26]. Many scholars approximate the electric field distribution under the PPSW voltage with the static electric field distribution under the electrostatic field [27][28][29][30] or DC field [31]. However, the transient characteristics of field distribution were ignored, and the reasonability of this approximation also needs to be testified.…”

Section: Introductionmentioning

confidence: 99%

Transient electric field of the combined insulation structure under positive periodic square waveform voltage: Analytical analysis and application

Wen

Cui

et al. 2022

High Voltage

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The working voltage of the high‐voltage high‐power electronic devices is the positive periodic square waveform (PPSW) voltage, which is much different from the conventional AC or DC voltage. For the composite insulation structure of devices, it is important to analyse the transient electric field under the PPSW voltage. However, the existing investigations are often conducted under the electrostatic field due to the high frequency of the PPSW voltage. Thus, the transient characteristics of the electric field are missed. To obtain some qualitative conclusions, this paper focusses on the theoretical analysis of the transient characteristics of electric field for the composite insulation structure under the PPSW voltage. First, the formula of the electric field intensity and the interfacial charge density are derived analytically. Second, the influence of the cycle and the duty cycle on the transient characteristics are investigated. Third, the maximum of the electric field intensity and the interfacial charge density in the positive square waveform steady‐state are discussed in detail. Besides, the engineering calculation methods for obtaining these maximum values are also suggested. Lastly, an actual model is employed to testify the validity of the analytical analysis. This work is significant for the numerical calculation of the transient electric field of composite insulation structure under the PPSW voltage in engineering.

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Section: Introductionmentioning

confidence: 99%

Transient electric field of the combined insulation structure under positive periodic square waveform voltage: Analytical analysis and application

Wen

Cui

et al. 2022

High Voltage

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Partial discharge characteristics of peek utilized in press-pack IGBT under DC voltage

Yang,

Liu,

Liu

et al. 2024

Electr Eng

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Modular multilevel converters (MMCs) have been utilized in solid-state transformers (SSTs). With the increasing demand in high-voltage power module in MMC-SST, press-pack IGBTs are very promising. The poly-ether-ether-ketone (PEEK) frame is utilized in the submodules of press-pack IGBT to withstand the high voltage. The electric field simulation in this paper reveals that electric field concentrates on the surface of the PEEK frame. Thus, the surface partial discharge characteristics under direct current (DC) voltage is investigated by the developed test bench. The results show that surface partial discharge model of PEEK sample has polarity effect. Under positive and negative polarity voltage, the average discharge quantity, maximum discharge quantity and discharge repetition rate of the PEEK sample all increase with the voltage amplitude. Moreover, the front time of the surface partial discharge waveform reaches 20 ns, and its frequency spectrum is concentrated in range of 10–20 MHz.

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Operational Environment Analysis of HVDC Converter Station for Development of Energy Harvester: Electromagnetic Field and Ambient Power Source

Lan¹,

He²,

Lan³

et al. 2021

2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)

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Electrical field analysis of press-pack IGBTs

Cited by 4 publications

References 5 publications

Transient electric field of the combined insulation structure under positive periodic square waveform voltage: Analytical analysis and application

Transient electric field of the combined insulation structure under positive periodic square waveform voltage: Analytical analysis and application

Partial discharge characteristics of peek utilized in press-pack IGBT under DC voltage

Operational Environment Analysis of HVDC Converter Station for Development of Energy Harvester: Electromagnetic Field and Ambient Power Source

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