Electric field evaluation on high voltage outdoor insulation by means of finite element method

Zhang, Chao; Kester, J. J.; Daley, Charles W.; Rigby, S.J.

doi:10.1109/elinsl.2010.5549536

Cited by 4 publications

(4 citation statements)

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“…The main high-harmonic order is 17,19,25,27,29,31, 35 and 37. The 27th harmonic is the component having the largest amplitude.…”

Section: High Harmonic Overvoltage Waveformmentioning

confidence: 99%

“…the electromagnetic transient simulation software The Alternative Transient Program-Electromagnetic Transient Program (ATP-EMTP) can be used to analyse the operating characteristics of an overvoltage wave [27], and provide a basis for the reasonable configuration and selection of an arrester [28][29][30]. Moreover, the electric field distribution of an arrester can be calculated using the finite element method [31].…”

Section: Introductionmentioning

confidence: 99%

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Study on operation voltage monitoring and electrothermal coupling simulation of electric multiple unit (EMU) roof arrester

et al. 2022

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The roof arrester of electric multiple units (EMU) can efficiently limit the overvoltage, and ensure the safe operation of the EMU electrical equipment. In the process of highspeed operation, the traction power supply system is often affected by overvoltage. In addition, roof arrester explosion accidents occasionally occur. In this paper, the on-line voltage measurement system of the EMU arrester is developed. By analysing a large number of voltage waveforms, the abnormal voltage is divided into three categories: over-phase voltage, high harmonic voltage and steep impulse overvoltage. The characteristics of abnormal voltage waveforms are then summarised. The electrothermal coupling simulation model of the arrester is developed, and the current response and temperature distribution of the arrester under abnormal voltage are calculated. The impact of the impulse voltage energy on the arrester temperature is studied by applying a triangular wave voltage to the model. Finally, some suggestions are proposed for the operation and maintenance of the roof arrester.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…The main high-harmonic order is 17,19,25,27,29,31, 35 and 37. The 27th harmonic is the component having the largest amplitude.…”

Section: High Harmonic Overvoltage Waveformmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on operation voltage monitoring and electrothermal coupling simulation of electric multiple unit (EMU) roof arrester

et al. 2022

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“…In [5], the temperature field distribution of transformer winding is obtained by finite element thermal-flow coupling calculation. [6] simulated the temperature rise process of the reactor and the temperature field distribution at steady state. In addition, the researchers also used finite element software to design and optimize the key parameters of fin radiator [7], heat pipe radiator [8] and water-cooled radiator [9].…”

Section: Introductionmentioning

confidence: 99%

Mine-used Flameproof Inverter Heat Dissipation Design and Its Performance Analysis

Wang,

Rong

2023

E3S Web Conf.

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Flameproof inverter for mine-used have a significant warming effect during operation, resulting in reduced reliability and susceptibility to thermal degradation and thermal failure. However, there is a lack of thermal analysis research on the operation mechanism and process evaluation of mining inverters. This paper analyzes the electrical characteristics of internal power devices and calculates the power loss. Secondly, on the basis of comparing the influence of flow rate, structural parameters and installation location on the thermal performance, the forced water cooling + air cooling + natural cooling method is used to optimize the design of the thermal system. Finally, ANSYS Icepak is used to conduct a comprehensive numerical simulation analysis of the internal temperature field characteristics and convective heat transfer characteristics. The simulation verifies the effectiveness of the heat dissipation-based design, and the results show that: the internal components of the mining explosion-proof inverter are not more than 80°C, which is much lower than the value specified in the relevant standards, and it has a good heat dissipation performance, which effectively guarantees the safe, stable and reliable operation of the mining explosion-proof inverter.

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“…Currently, in the calculation of power capacitor design, only the average field intensity is calculated, and the calculation of edge field intensity is neglected, so it is difficult to guarantee the accuracy of calculation results and precision. The numerical simulation technology has become to be a larger advantage in electric field simulation analysis of insulation medium [13], especially the more complex model structure [14][15][16][17]. The numerical simulation calculation of capacitor in this work has a guiding significance for the engineering practice, and this work gives a quantitative analysis to the electric field of capacitor component.…”

Section: Introductionmentioning

confidence: 99%

Distribution and influence factors of electric field in high‐voltage power capacitor

Liang

Wang

Liu³

2015

IET Science, Measurement & Technology

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Electric field evaluation on high voltage outdoor insulation by means of finite element method

Cited by 4 publications

References 0 publications

Study on operation voltage monitoring and electrothermal coupling simulation of electric multiple unit (EMU) roof arrester

Study on operation voltage monitoring and electrothermal coupling simulation of electric multiple unit (EMU) roof arrester

Mine-used Flameproof Inverter Heat Dissipation Design and Its Performance Analysis

Distribution and influence factors of electric field in high‐voltage power capacitor

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