电力系统及其自动化学报2019，Vol.31Issue(6)：143-150,8.DOI:10.3969/j.issn.1003-8930.2019.06.022
UHVAC同塔双回输电线路表面场强分析
Analysis of Surface Electric Field of UHVAC One-tower Double-circuit Transmission Line
马爱清 1林鹏远 1迟杰 2杨喆2
作者信息
- 1. 上海电力学院电气工程学院,上海 200090
- 2. 烟台市供电公司,烟台 264000
- 折叠
摘要
Abstract
To study the surface electric field(EF)distribution of ultra-high voltage(UHV)one-tower double-circuit split conductors,a method is proposed based on revised charge simulation method(CSM),which can find the best place of simulated charge on the corresponding sub-conductor by multi-step optimization and modeling. Afterwards,the surface EF of split conductors are calculated through programming. This revised method is used to calculate the surface EF of split conductors on Zhejiang-Shanghai UHVAC transmission line,and the EF’s influencing factors,such as the number of bundles and sub-conductor radius,are studied. Calculation results show that the proposed method is more ac?curate than the traditional CSM,and it can restrain the voltage calibration error within 0.05%;the maximum surface EF of this line can reach 1 783.5 kV/m,which is lower than that of corona inception on sunny and cloudy/foggy days, but higher than that on rainy days;by increasing the number of bundles to 10 and enlarging the radius of sub-conduc?tors to 0.019 2 m,the maximum surface EF values can be reduced by 14.9% and 12.4%,respectively.关键词
特高压交流/同塔双回输电线路/改进模拟电荷法/分裂导线/表面场强/多步寻优Key words
ultra-high voltage alternating current/one-tower double-circuit transmission line/revised charge simulation method/split conductor/surface electric field/multi-step optimization分类
信息技术与安全科学引用本文复制引用
马爱清,林鹏远,迟杰,杨喆..UHVAC同塔双回输电线路表面场强分析[J].电力系统及其自动化学报,2019,31(6):143-150,8.
