Abstract：To meet the emergency of unexpected powerful wind in northwest China,this article designs a new type of anti-wind and anti-corona 24-bundle conductors for DC 800kV voltage withstand test. Based on computational fluid dynamics(CFD) and charge simulation method(CSM),this paper calculates and analyzes a series design parameters of conductors’ related aerodynamics characteristic in wind velocity field as well as its 3D electric field by solving the corresponding 2D reynolds averaged navier-stokes(RANS) equation of the air-bundled conductors system and potential coefficient matrix. Aim to suppress corona and wind deviation angle,this article determines the diameter of sub- conductors,radius of spacing plate and split number of test conductors considering its electric characteristic as well as mechanical performance. Calculation results indicates that a critical conductor spacing ratio exists when interference effect reaches its peak value,and wind deviation angle can be strongly influenced by the interference effect between sub-conductors,and at the wind speed of 13.8m/s,the wind deviation angle of test conductors can be suppressed under 25°and the maximum surface voltage gradient under 27kV/cm. It concludes that the anti-wind and anti-corona 24-bundle conductors for DC 800kV voltage withstand test possesses an excellent electrical and mechanical performance to make sure the test procedure in safe.
汪沨，易畅，张广东，温定筠，吕景顺. 特高压直流耐压实验用防风抗晕导线的设计[J]. 电工技术学报, 2014, 29(11): 247-254.
Wang Feng,Yi Chang,Zhang Guangdong,Wen Dingjun,Lü Jingshun. Design of Anti-Wind and Anti-Corona 24-Bundle Conductors for UHV DC Voltage Withstand Test. Transactions of China Electrotechnical Society, 2014, 29(11): 247-254.
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