摘要
变压器是供电系统中主要的输变电设备,在受到雷电的冲击作用时,产生的过电压变化,是引起变压器损坏的重要原因。采用EMTP(电磁暂态程序)模拟的方式建立变压器的集中参数等值电路模型,对雷电冲击作用造成的变压器绕组变形时过电压特性的变化进行分析,从而对变压器的安全稳定使用提供参考,以提高供电系统的稳定性。
Transformer is the main power transmission and transformation equipment in the power supply system,and when subjected to the impact of lightning,it generates overvoltage changes,which is an important cause of transformer damage.EMTP(electromagnetic transient program)simulation is used to establish the centralised parameter equivalent circuit model of the transformer,the overvoltage characteristics of the transformer winding deformation caused by lightning impact is analysed,so as to provide a reference for the safe and stable use of the transformer,and improve the stability of the power supply system.
作者
闫雅楠
Yan Yanan(Jinneng Holding Coal Group Wajinwan Hulonggou Coal Co.,Ltd.,Shuozhou Shanxi 038300,China)
出处
《机械管理开发》
2023年第11期59-60,65,共3页
Mechanical Management and Development
关键词
变压器
绕组
雷电冲击
过电压特性
仿真分析
稳定性
transformer
winding
lightning impact
overvoltage characteristics
simulation analysis
safety and stability
