A Current Transformer Saturation Time Difference Method for Detecting Out Of Zone Fault Using Mathematical Morphology
编号:193 访问权限:公开 更新:2020-10-29 16:20:23 浏览:341次 张贴报告

报告开始:2020年11月04日 14:45(Asia/Shanghai)

报告时间:5min

所在会场:[G] Poster session [G4] Poster Session 4 and Poster Session 9

摘要
For the smooth operation of the power system timely detection of fault and separation of faulty part is of utmost importance, so that the fault current do not travel to the other areas of the system causing severe outage or damage to the system relays must operate on their designed settings. Timely recognition of fault and the exact place where fault has occurred is very important and in order to avoid problems caused by difference in differential currents due to saturation of Current Transformer (CT), which causes distorted secondary current, resulting in mal Operation of relays, which can lead to severe problems in the system or possible damage to some of the power equipment. So it is necessary to detect CT Saturation and timely compensate its effects. This paper proposes an algorithm based on mathematical morphology to detect CT saturation caused by the fault in the system, and by using a time difference comparison it can detect when the fault is inside the zone of protection and the when the fault is outside the zone. This method is effective in determining CT saturation and in selecting the area of fault based on the time difference. The simulation experiment was done using PSCAD/EMTDC and MATLAB.
For the smooth operation of the power system timely detection of fault and separation of faulty part is of utmost importance, so that the fault current do not travel to the other areas of the system causing severe outage or damage to the system relays must operate on their designed settings. Timely recognition of fault and the exact place where fault has occurred is very important and in order to avoid problems caused by difference in differential currents due to saturation of Current Transformer (CT), which causes distorted secondary current, resulting in mal Operation of relays, which can lead to severe problems in the system or possible damage to some of the power equipment. So it is necessary to detect CT Saturation and timely compensate its effects. This paper proposes an algorithm based on mathematical morphology to detect CT saturation caused by the fault in the system, and by using a time difference comparison it can detect when the fault is inside the zone of protection and the when the fault is outside the zone. This method is effective in determining CT saturation and in selecting the area of fault based on the time difference. The simulation experiment was done using PSCAD/EMTDC and MATLAB.
 
关键词
CT saturation, Mathematical morphology, Morphological gradient
报告人
Ather Khan
Research And Develop Sieyuan High Voltage Electric Company, Shanghai

Studied Electrical Engineering from Mehran University of Engineering and Technology, Jamshoro Pakistan in 2010, work as lecturer in polytechnical institute hyderabad Pakistan. till April 2014. In Sep 2014 moved to China and finished M.S in Electrical Power System and Its AUtomation in 2018. Since 2018, October, working in Sieyuan High Voltage Electric Company, Shanghai as research and development engineer for Gas Insulated Substations.

稿件作者
Nanjing University of Science and Technology
发表评论
验证码 看不清楚,更换一张
全部评论
重要日期
  • 会议日期

    11月02日

    2020

    11月04日

    2020

  • 10月27日 2020

    初稿截稿日期

  • 11月03日 2020

    报告提交截止日期

  • 11月04日 2020

    注册截止日期

  • 11月17日 2020

    终稿截稿日期

主办单位
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
承办单位
Huazhong University of Science and Technology
联系方式
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询