作者:
杜志叶，阮江军，干喆渊，阮祥勇，荣荣，...
关键词:
三维模型 ； 变电站 ； 工作走廊 ； 工频电场 ； 工频磁场 ； 电磁环境
摘要:
The calculation and assessment on power frequency electromagnetic field inside and outside high voltage substation become important increasingly. Combining three-dimensional modeling software Solidworks with electromagnetic field analysis software Ansoft, the three-dimensional numerical simulation of large-scale complicated electromagnetic problem is implemented. Based on the design drawing of a certain 110 kV substation, a three-dimensional simulation model, in which the overhead line, overhead bus, power transformer, building and grounded metal pillar are included, is built by Solidworks software, and then the built model is utilized in Ansoft to perform Maxwell three-dimensional simulation of power frequency electrical field and magnetic field at the height of 1.5 m above ground of the outdoor area of the substation. Simulation results show that the power frequency electric field strength and the power frequency magnetic field strength inside and outside this 110 kV substation are within the limits specified in the standard. At the working corridor, the variation trend of simulation results conforms to the measured results; and in the area where the power equipments are not so intensive, the error between the calculated power frequency electric field strength and the measured power frequency electric field strength is lower than 10%. The proposed method is available for reference to the evaluation and assessment of electromagnetic environment of substation.
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