现代电子技术Issue(16)：155-158,4.
基于电流偏差系数法的变压器绕组变形在线监测仿真
Simulation of transformer winding deformation on-line monitoring based on current deviation coefficient method
沈明 1陆云才 2尹毅1
作者信息
- 1. 上海交通大学，上海 200240
- 2. 江苏省电力试验研究院有限公司，江苏 南京 210029
- 折叠
摘要
Abstract
To achieve a stronger power grid,online monitoring of the transformer winding deformation becomes more impor-tant. The basic principles of transformer winding deformation online monitoring based on the current deviation coefficient method is introduced in this paper,followed by a simulation on Simulink platform. The single frequency sinusoidal signal at the range of 600 kHz~1.2 MHz is injected to the winding through the bushing tab to measure the high frequency currents at the line-end and neutral-end of the transformer winding,calculate the current variation and the current deviation coefficient of the line-end and neutral-end of the transformer winding,and determine the extent,type and location of the winding deformation. The simulation shows that the method can judge whether the winding deformation has happened,and determine the type,extent and location of winding deformation. The method is simple and applicable for online monitoring of the winding deformation.关键词
绕组变形/在线监测/电流偏差系数/SimulinkKey words
winding deformation/on-line monitoring/current deviation coefficient/Simulink分类
信息技术与安全科学引用本文复制引用
沈明,陆云才,尹毅..基于电流偏差系数法的变压器绕组变形在线监测仿真[J].现代电子技术,2013,(16):155-158,4.
