Numerical simulation of corona-induced vibration of high voltage conductor

doi:10.1007/s11460-009-0033-y

Front Elect Electr Eng Chin

2009, Vol. 4

Issue (3) : 335-341 https://doi.org/10.1007/s11460-009-0033-y

RESEARCH ARTICLE

Numerical simulation of corona-induced vibration of high voltage conductor

A. GOURBI(

), M. BRAHAMI, A. TILMATINE, P. PIROTTE

Djillali Liabes University, Sidi Bel Abbés 22000, Algeria

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Abstract

When it rains, electric power transmission lines start vibrating due to corona effect. This type of vibration is known as “corona-induced vibration”. The aim of this paper is to elaborate a mathematical model for numerical simulation of the corona-induced vibration, with consideration of the influence of the magnitude and the polarity of the electric field on the conductor surface. Finite element method was employed to develop the numerical model, and the finite difference method was used for the time discretisation. The moment of application of the corona-induced force is evaluated using the resultant vertical force applied to a water drop, suspended under a high voltage conductor. Some experimental results of other authors are exploited to evaluate the precision of the simulation and the validation of numerical results.

Keywords corona-induced vibration corona wind finite element method

Corresponding Author(s): GOURBI A.,Email:aekett@yahoo.fr

Issue Date: 05 September 2009

Cite this article:

A. GOURBI,M. BRAHAMI,A. TILMATINE, et al. Numerical simulation of corona-induced vibration of high voltage conductor[J]. Front Elect Electr Eng Chin, 2009, 4(3): 335-341.

URL:

https://academic.hep.com.cn/fee/EN/10.1007/s11460-009-0033-y
https://academic.hep.com.cn/fee/EN/Y2009/V4/I3/335

Fig.1 Corona-induced vibration mechanism

Fig.2 Interpolation function corresponding to linear element

Fig.3 Amplitude of central node versus electrical field (conductor supplied by negative HV direct current (DC))

Fig.4 Amplitude of central node versus electrical field (conductor supplied by positive HV direct current (DC))

Fig.5 Amplitude of central node versus electrical field (conductor supplied by negative HV alternating current (AC))

Fig.6 Variation of amplitude vibrations of central node during 20 seconds

Fig.7 Variation of amplitude vibrations of central node during first 4 seconds

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