High Efficiency FEM Calculation of the Ionized Field Under HVDC Transmission Lines

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

doi:10.1109/tmag.2011.2172195

Cited by 31 publications

(16 citation statements)

References 10 publications

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“…in [7], [8]. In recent years, further improvements to the stability and efficiency of numerical calculation methods have been proposed in a number of publications, including [9], [10]. In [11], the validity of the Deutsch assumption was investigated with the conclusion that for high corona intensities it can lead to significant errors.…”

Section: A Bipolar Coronamentioning

confidence: 99%

Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines

Pfeiffer

Hedtke

Franck

2018

IEEE Trans. Power Delivery

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Section: A Bipolar Coronamentioning

confidence: 99%

Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines

Pfeiffer

Hedtke

Franck

2018

IEEE Trans. Power Delivery

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“…The typical triangle meshes (elements) are used as shown in Fig 1. The solution of Equation (1) is equal to minimize the following function [14]:…”

Section: Solution Of Poisson's Equationmentioning

confidence: 99%

“…Previous studies [14][15][16][17][18] proposed numerical methods using FEM and FVM to calculate the ion flow under a high-voltage current transmission line. Yin [19] combines FVM with a time step to simulate the formation process of the ion-flow field of the ±800 kV HVDC test line.…”

Section: Introductionmentioning

confidence: 99%

Space and Time Domain Finite Volume Method for Numerical Simulation of Negative Corona Discharge in Air

Wang¹

2016

Journal of Electrical Engineering and Technology

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-In this paper, a space and time domain finite volume method is proposed to study the characteristics of space charges on a bar-to-plate geometry. Three ionic species, namely, positive ions, negative ions, and electrons, are considered. A finite element method is used to solve Poisson's equation, and a finite volume method is used to solve charge transport equation. Different time steps based on space domain and time domain are applied to improve computational efficiency when solving the charge transport equation. Four points are marked to indicate the characteristics of a Trichel pulse. Density distributions of three ionic species and electrical field strength along the axis are presented. Trichel pulses on a bar-to-plate geometry are simulated and compared with the experimental results. Good agreements are obtained, thereby confirming the validity of the proposed method.

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“…Thus, the impact of haze weather on ion flow field around the HVDC transmission line is considered in this paper. Reference [7] proposed a calculation method of ion flow field which simplified the two dimensions problem into one dimension with noteworthy errors; A grid like ion flow field calculation method is proposed in reference [8], which reduces the error; Then there are upwind finite element method [9], meshless method [10] and various improved methods [11][12], which have significantly improved the accuracy. The above method can effectively calculate the ion flow field under normal weather, but weak in the calculation under complex meteorological conditions.…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of Haze Weather on Audible Noise of HVDC Transmission Line

Zhang¹,

Wang²,

Fang³

et al. 2021

J. Phys.: Conf. Ser.

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In order to study the influence of haze weather on audible noise of HVDC transmission line, a calculation model of ion flow field of HVDC transmission line considering the influence of haze is established, and then the relationship between different haze levels, different haze particle concentrations and audible noise is analyzed by taking the maximum potential gradient on the conductor surface as the intermediary. Then a ± 800kV DC transmission line is simulated and the results show that the audible noise will be more prominent with the increase of haze concentration, and the increment is more obvious at higher haze concentration; The charging of haze particles is the principal origin for the increase of audible noise, and the effect of PM2.5 is the most significant.

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High Efficiency FEM Calculation of the Ionized Field Under HVDC Transmission Lines

Cited by 31 publications

References 10 publications

Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines

Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines

Space and Time Domain Finite Volume Method for Numerical Simulation of Negative Corona Discharge in Air

Research on the Influence of Haze Weather on Audible Noise of HVDC Transmission Line

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