基本信息:
- 专利标题： 基于等值电阻的变压器绕组状态估计方法
- 专利标题（英）：Transformer winding state estimation method based on equivalent resistance
- 申请号：CN201410550269.7 申请日：2014-10-16
- 公开(公告)号：CN104330690A 公开(公告)日：2015-02-04
- 发明人： 陈国珍 , 何菲 , 孙素娟 , 郝治国 , 张晓静
- 申请人： 国家电网公司 , 江苏省电力公司 , 江苏省电力公司泰州供电公司 , 西安交通大学
- 申请人地址： 北京市西城区西长安街86号
- 专利权人： 国家电网公司,江苏省电力公司,江苏省电力公司泰州供电公司,西安交通大学
- 当前专利权人： 国家电网公司,江苏省电力公司,江苏省电力公司泰州供电公司,西安交通大学
- 当前专利权人地址： 北京市西城区西长安街86号
- 代理机构： 泰州地益专利事务所
- 代理人： 王楚云
- 主分类号： G01R31/06
- IPC分类号： G01R31/06 ; G06F19/00
The invention discloses a transformer winding state estimation method based on equivalent resistance. According to the method, the collected voltage current data of two sides of a transformer before and after a fault is utilized, the equivalent resistance of a winding is obtained by using least squares algorithm identification, with the equivalent resistance before the fault as a reference value, the deviation of the equivalent resistance after the fault is calculated and analyzed, according to the positive or negative characteristic and size of the deviation, whether the winding is in a normal state or is deformed correspondingly is judged, measures are taken timely, vigilance is carried out for other faults, especially for a transformer near area or outlet short circuit fault, the operation exit is carried out in a serious condition, and the maintenance is arranged.