摘要
直流滤波电容器是直流输变电中的重要设备,以往对其抗震分析未考虑预应力的影响。文中探讨了预应力对直流滤波电容器模态的影响,通过计算说明预应力的存在提高了直流滤波电容器的固有频率,并对直流滤波电容器进行了3种载荷组合分析,得到了放置框架和棒形悬式复合绝缘子应力储备系数。
DC filter capacitor is a key component of DC power transmission and distribution systems. In the past, the studies on the seismic behavior of DC filter capacitor usually neglect the prestressing force.So, in this paper, the model analysis of the DC filter capacitor with prestressing force has been carried out. It is proved that prestressing force improve the natural frequency of the DC filter capacitor through finite element analysis. Then, three kind of load behavior of the DC filter capacitor are studied. In addition, the stress reserve coefficient of the framework andcomposite long rod insulator are obtained.
出处
《高压电器》
CAS
CSCD
北大核心
2015年第4期151-156,共6页
High Voltage Apparatus
关键词
预应力
直流滤波电容器
有限元
载荷分析
地震响应
prestressing force
DC filter capacitor
finite element
load behavior
seismic response
