The Ionized Fields and the Ion Current on a Human Model Under $\pm$800-kV HVDC Transmission Lines

Li, Xuebao; Cui, Xiang; Zhen, Yongzan; Lu, Tiebing; Luo, Zhendong; Zhou, Xiangxian

doi:10.1109/tpwrd.2012.2198836

Cited by 18 publications

(8 citation statements)

References 8 publications

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“…The same corona model is used for all of the methods so that the same charge density is applied at the boundary of the conductors [see (13)]. This choice has been made in order to compare the numerical method for solving the PDE and not the corona model.…”

Section: Validation Casementioning

confidence: 99%

“…The Deutsch assumption that states that the direction of the electric field is not influenced by the ions is one of the oldest methods [8], [9]. Even though the Deutsch assumption has been criticized [10], [11], it is still frequently used for solving the ion-flow problem [12], [13]. Other methods that have been used are based on the charge simulation method (CSM) [14].…”

mentioning

confidence: 99%

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Improved Coupled Ion-Flow Field Calculation Method for AC/DC Hybrid Overhead Power Lines

Guillod

Pfeiffer

Franck

2014

IEEE Trans. Power Delivery

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Section: Validation Casementioning

confidence: 99%

mentioning

confidence: 99%

Improved Coupled Ion-Flow Field Calculation Method for AC/DC Hybrid Overhead Power Lines

Guillod

Pfeiffer

Franck

2014

IEEE Trans. Power Delivery

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“…Because of its efficiency, this method is developed to analyse the 3-d ion flow field. Li et al adopted the method to analyse the ion flow field of the human model under the HVDC transmission lines [10] and Luo et al adopted the method to analyse the ionized electric field including a building [11]. To analyse the ion current and the ionized electric field around HVDC lines under windy conditions, the FTM was derived by making appropriate assumptions and identifying the wind-modified pattern of flux lines, and this was called FTM-wind [12].…”

Section: Introductionmentioning

confidence: 99%

A Laboratory Study on the Ion-Flow Field Model of the DC Wires in Stable Wind

Zhen

Cui

et al. 2015

IEEE Trans. Power Delivery

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Although transverse wind exerts an important influence on the distribution of the ion current density under HVDC transmission lines, very few experiments involving stable wind have been used to verify the numerical model. To overcome the variability of natural wind, a low-speed wind tunnel was used to produce stable wind in this research. An experimental platform was set-up in the wind tunnel, to measure the ion current density of DC wires. Based on the experiment, transverse wind exerted significant influence over the distribution of the ion current. The numerical model was discussed and the results showed reasonable agreement with the measured values for different wind speeds.

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“…In the area of 3-D total electric field calculation, several 3-D numerical methods have been proposed. A method based on flux line method for horizontal HVDC transmission lines was explored [4][5][6] and later was extended to crossing HVDC transmission lines [7]. A 3-D upstream finite element method (FEM) was also applied for horizontal bipolar HVDC transmission lines [8] and crossing HVDC transmission lines [9].…”

Section: Introductionmentioning

confidence: 99%

Research on 3‐D total electric field of crossing high voltage direct current transmission lines based on upstream finite element method

Xie

et al. 2020

High Voltage

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The ongoing large‐scale construction of ultra high voltage direct current projects in China makes the crossing of two high voltage direct current (HVDC) lines inevitable. It is critical to study the characteristics and calculation method of 3‐D total electric fields of crossing HVDC lines. The problems encountered when applying the 3‐D upstream finite element method to calculate total electric field of crossing HVDC lines and the solutions are studied in this study. In view of the surface electric field varying greatly along longitudinal direction of conductors, the calculation method adopting the Davidon‐Fletcher‐Powell optimization algorithm is introduced to realize the fast computation of 3‐D space‐charge‐free field. Considering the distinct corona intensity at different positions of conductors, a new formula for initializing charge density is studied to ensure the convergence of calculation process. Considering the large computation amount of total electric field, an adaptive iteration strategy is put forward to effectively speed up the calculation. The measurement of ground total electric field underneath a crossing HVDC test line is conducted to verify the validity of the proposed calculation method. The distribution characteristics of electric fields of crossing HVDC lines are calculated and analysed. The research results will provide technical support for the design and environmental impact assessment of crossing HVDC transmission lines.

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The Ionized Fields and the Ion Current on a Human Model Under $\pm$800-kV HVDC Transmission Lines

Cited by 18 publications

References 8 publications

Improved Coupled Ion-Flow Field Calculation Method for AC/DC Hybrid Overhead Power Lines

Improved Coupled Ion-Flow Field Calculation Method for AC/DC Hybrid Overhead Power Lines

A Laboratory Study on the Ion-Flow Field Model of the DC Wires in Stable Wind

Research on 3‐D total electric field of crossing high voltage direct current transmission lines based on upstream finite element method

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