摘要
随着供电需求的增大,超高压变电站越来越接近公众活动区域,变电站站内的电场分布情况也显得越来越重要。本文提出改进的模拟电荷法,推导了带电体周围的工频电场计算公式。通过对500k V变电站进行模型建立及简化,编程计算出站内离地1.5m处的工频电场强度;采用CDEGS软件对重庆某500k V变电站进行仿真计算,将仿真结果和实测值与本文算法的计算结果进行对比,验证了本文算法的正确性与有效性。最后选取该变电站内三条路径,计算分析该处工频电场强度的分布情况,为深入研究变电站的工频电场分布提供参考。
With the increasing demand for electricity supply, EHV substations are having access to the public, thus the assessment of power frequency electromagnetic field inside high voltage substation becomes quite important. This paper presents a kind of improved algorithm of charge simulation method and deduces the electric field distribution around the charged body to calculate power frequency electric fields that is 1.5m over the ground surface by model- ing the 500kV substation. CDEGS is used to analyze a 500kV substation in Chongqing. Numerical results are com- pared to the measured values and the simulation results. Comparison shows good agreement, thus approving applica- bility of the proposed approach in analysis of other areas inside substation. Three paths in the substation are select- ed, predicting electric field intensity distribution, which can provide reference for the research on the power fre- quency electric field distribution of transformer substation.
出处
《电工电能新技术》
CSCD
北大核心
2015年第7期27-31,共5页
Advanced Technology of Electrical Engineering and Energy
基金
国家自然科学基金(51277189)
国家"111"创新引智计划(B08036)资助项目
关键词
变电站
工频电场
模拟电荷法
仿真分析
CDEGS
substation
power frequency electric field
charge simulation method
simulation analysis
CDEGS
