GU Hong-xia, YU Hong, QIAN Guo-chao, et al. Research on 110 kV power transformer winding modal[J]. 2017, 36(10): 51-53+60. DOI: 10.13873/J.1000-9787(2017)10-0051-03.
110 kV电力变压器绕组模态研究
摘要
变压器绕组等效的机械结构体
一旦发生改变
其模态将发生相应变化
此时对其振动信号进行频率响应分析
即可检测绕组轻微变形。对变压器绕组进行模态分析:利用ANSYS对绕组进行幅向建模分析
分别得到了绕组故障与正常情况下频响曲线的变化规律。开展真实110 kV变压器模态实验
并与ANSYS仿真结果对比
进一步验证了仿真结果的正确性
同时
为下一步研制振动检测系统奠定了基础。
Abstract
Transformer wingding can be equal to a mechanical structure
if the structure is changed
its modal will be changed. Vibration signal frequency response analysis is carried out. So it can detect the winding deformation So it is significant to analyze the winding modal. In order to make the modal analysis for the winding
the winding picture change model is established with ANSYS
and the result shows the trend of vibration frequency curve with the comparing the normal winding and deformation winding. Experiment of real transformer is carried out
the simulation result is verified correct by comparing with experimental result
and it lay a foundation for research and fabrication of vibration detecting system.