高压直流导线下绝缘薄膜表面电荷分布测量Research on Surface Charge Characteristics of Insulating Film Under HVDC Wires With Corona Discharge
马文祚;卢铁兵;
摘要(Abstract):
随着我国高压直流输电工程的大量建设,由电晕放电引起的电磁环境问题显得尤为重要。但是,目前对线路跨越农用大棚时的电场问题研究还不够。当线路下方存在农用大棚时,电荷会在大棚表面发生积累,并对地面的离子流场造成畸变。利用法拉第筒法对PVC塑料薄膜、遮阳网和布料3种介质模型表面电荷密度进行测量,并对比3种材料的荷电特性。通过分析,获得PVC塑料薄膜表面电荷密度的分布特点,以及3种不同材质绝缘薄膜荷电特性的差异。对高压直流输电线路附近大棚表面电场的建模和计算提供参考。
关键词(KeyWords): 法拉第筒法;表面电荷密度;绝缘薄膜;高压直流输电
基金项目(Foundation): 国家自然科学基金项目(51177041)~~
作者(Author): 马文祚;卢铁兵;
Email:
DOI: 10.13335/j.1000-3673.pst.2015.06.017
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