公开(公告)号：US20160047765A1

公开(公告)日：2016-02-18

申请号：US14457768

申请日：2014-08-12

申请人： ABB Inc.

发明人： Xianyong Feng ,  Mirrasoul Mousavi

IPC分类号： G01N25/72

CPC分类号： H01F27/402 ,  G01M3/002 ,  G01N25/18 ,  G01N25/72 ,  H01F2027/406

摘要： The present invention comprises an apparatus and method for detecting a loss of oil from an oil-immersed transformer, based on fitting a transformer top-oil temperature model to online measurements in an iterative optimization process that yields fitted values for a first model parameter representing the top-oil temperature rise over ambient temperature and a second model parameter representing the oil time constant. Among the several advantages seen in the contemplated apparatus and method is the reduction in required instrumentation, whereby transformer oil leaks are indirectly detected without requiring pressure sensors or mechanical floats, although the presence of such sensors is not excluded by the teachings herein.

摘要翻译： 本发明包括一种用于检测来自油浸变压器的油损失的装置和方法，其基于在迭代优化过程中将变压器顶油温度模型拟合到在线测量，其产生表示第一模型参数的拟合值 顶部油温度超过环境温度，而第二个模型参数代表油时间常数。 在所设想的装置和方法中看到的几个优点之一是减少所需的仪器，由此在不需要压力传感器或机械浮子的情况下间接地检测变压器油泄漏，尽管这样的传感器的存在不被本文的教导所排除。

公开(公告)号：US10281338B2

公开(公告)日：2019-05-07

申请号：US15050538

申请日：2016-02-23

申请人： ABB Inc.

发明人： Xianyong Feng ,  Mirrasoul J. Mousavi

IPC分类号： G01K1/20 ,  G01K7/42 ,  H02H6/00 ,  H02H7/04 ,  H01F27/40

摘要： A real time thermal monitoring and prediction system (TMPS) is provided for use in monitoring and operating a transformer. The TMPS may be used to estimate a maximum loading level for the transformer over a future time period using a dynamic thermal model for the transformer and ambient temperature forecasts. The transformer may be loaded to its maximum loading level during power congestion or a service restoration process.

公开(公告)号：US10192677B2

公开(公告)日：2019-01-29

申请号：US14457768

申请日：2014-08-12

申请人： ABB Inc.

发明人： Xianyong Feng ,  Mirrasoul Mousavi

IPC分类号： G01N25/72 ,  H01F27/40 ,  G01M3/00 ,  G01N25/18

摘要： The present invention comprises an apparatus and method for detecting a loss of oil from an oil-immersed transformer, based on fitting a transformer top-oil temperature model to online measurements in an iterative optimization process that yields fitted values for a first model parameter representing the top-oil temperature rise over ambient temperature and a second model parameter representing the oil time constant. Among the several advantages seen in the contemplated apparatus and method is the reduction in required instrumentation, whereby transformer oil leaks are indirectly detected without requiring pressure sensors or mechanical floats, although the presence of such sensors is not excluded by the teachings herein.

公开(公告)号：US20160252401A1

公开(公告)日：2016-09-01

申请号：US15050538

申请日：2016-02-23

申请人： ABB Inc.

发明人： Xianyong Feng ,  Mirrasoul J. Mousavi

IPC分类号： G01K1/20

CPC分类号： G01K1/20 ,  G01K7/427 ,  H01F2027/406 ,  H02H6/00 ,  H02H7/04

摘要： A real time thermal monitoring and prediction system (TMPS) is provided for use in monitoring and operating a transformer. The TMPS may be used to estimate a maximum loading level for the transformer over a future time period using a dynamic thermal model for the transformer and ambient temperature forecasts. The transformer may be loaded to its maximum loading level during power congestion or a service restoration process.

摘要翻译： 提供实时热监测和预测系统（TMPS），用于监测和操作变压器。 TMPS可用于使用变压器的动态热模型和环境温度预测来估计变压器在未来时间段内的最大负载水平。 在电力拥塞或服务恢复过程期间，变压器可以被加载到其最大负载水平。