公开(公告)号：US20160282397A1

公开(公告)日：2016-09-29

申请号：US15174687

申请日：2016-06-06

Applicant: ABB Inc.

Inventor： Ning Kang ,  Mirrasoul Mousavi

IPC: G01R31/02 ,  G01R31/08

CPC classification number: G01R31/024 ,  G01R31/08 ,  G01R31/086 ,  H02H3/405 ,  H02H7/28 ,  Y04S10/522

Abstract: Systems and methods for identifying faulted segment(s) in a multiphase power network may include receiving a current measurement that was measured during a fault, obtaining a set of equivalent sequence impedances for the segments, building a set of sequence bus impedance matrices, selecting a segment, calculating coefficients for the segment based on the set of equivalent sequence impedances for the segment and the sequence bus impedance matrices, calculating an estimated per unit fault distance for the segment based at least partially on the current measurement and the coefficients, identifying the segment as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one, and repeating for each of the segments the calculating coefficients, calculating an estimated per unit fault distance, and identifying as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one.

Abstract translation: 用于识别多相电力网络中的故障段的系统和方法可以包括接收在故障期间测量的当前测量，获得用于段的一组等效序列阻抗，构建一组序列总线阻抗矩阵，选择一个 基于段和序列总线阻抗矩阵的等效序列阻抗的集合来计算段的系数，至少部分地基于当前测量和系数来计算段的每单位故障距离的估计，识别段 如果该段的估计故障距离在约零和约1之间，则作为潜在故障段，并且对于每个段重复计算系数，计算每单位故障距离的估计，并且如果估计的 段的故障距离在大约零到大约1之间。

公开(公告)号：US20160011252A1

公开(公告)日：2016-01-14

申请号：US14329164

申请日：2014-07-11

Applicant: ABB Inc.

Inventor： Ning Kang ,  Mirrasoul Mousavi

IPC: G01R31/08 ,  G01R31/02

CPC classification number: G01R31/086 ,  G01R31/021 ,  G01R31/08 ,  G01R31/088 ,  G01R31/44 ,  H02H3/042 ,  H02H7/26

Abstract: A decision support system is provided for utility operations to assist with crew dispatch and restoration activities following the occurrence of a disturbance in a multiphase power distribution network, by providing a real-time visualization of possible location(s). The system covers faults that occur on fuse-protected laterals. The system uses real-time data from intelligent electronics devices coupled with other data sources such as static feeder maps to provide a complete picture of the disturbance event, guiding the utility crew to the most probable location(s). This information is provided in real-time, reducing restoration time and avoiding more costly and laborious fault location finding practices.

Abstract translation: 提供决策支持系统，用于公用事业操作，以通过提供可能位置的实时可视化来协助在多相配电网络中发生干扰之后的船员调度和恢复活动。 该系统涵盖在保险丝保护端子上发生的故障。 该系统使用来自智能电子设备的实时数据与其他数据源（例如静态馈线图）耦合，以提供干扰事件的完整图像，将实用工作人员引导到最可能的位置。 这些信息是实时提供的，减少了恢复时间，避免了更昂贵和费力的故障定位实践。

公开(公告)号：US10514412B2

公开(公告)日：2019-12-24

申请号：US15174687

申请日：2016-06-06

Applicant: ABB Inc.

Inventor： Ning Kang ,  Mirrasoul Mousavi

IPC: G01R31/02 ,  G01R31/08 ,  H02H3/40 ,  H02H7/28

Abstract: Systems and methods for identifying faulted segment(s) in a multiphase power network may include receiving a current measurement that was measured during a fault, obtaining a set of equivalent sequence impedances for the segments, building a set of sequence bus impedance matrices, selecting a segment, calculating coefficients for the segment based on the set of equivalent sequence impedances for the segment and the sequence bus impedance matrices, calculating an estimated per unit fault distance for the segment based at least partially on the current measurement and the coefficients, identifying the segment as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one, and repeating for each of the segments the calculating coefficients, calculating an estimated per unit fault distance, and identifying as a potentially faulted segment if the estimated fault distance for the segment is between about zero and about one.

公开(公告)号：US10192677B2

公开(公告)日：2019-01-29

申请号：US14457768

申请日：2014-08-12

Applicant: ABB Inc.

Inventor： Xianyong Feng ,  Mirrasoul Mousavi

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

Abstract: 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：US09874593B2

公开(公告)日：2018-01-23

申请号：US14329164

申请日：2014-07-11

Applicant: ABB Inc.

Inventor： Ning Kang ,  Mirrasoul Mousavi

IPC: G01R31/08 ,  G01R31/02 ,  H02H3/04 ,  H02H7/26

CPC classification number: G01R31/086 ,  G01R31/021 ,  G01R31/08 ,  G01R31/088 ,  G01R31/44 ,  H02H3/042 ,  H02H7/26

Abstract: A decision support system is provided for utility operations to assist with crew dispatch and restoration activities following the occurrence of a disturbance in a multiphase power distribution network, by providing a real-time visualization of possible location(s). The system covers faults that occur on fuse-protected laterals. The system uses real-time data from intelligent electronics devices coupled with other data sources such as static feeder maps to provide a complete picture of the disturbance event, guiding the utility crew to the most probable location(s). This information is provided in real-time, reducing restoration time and avoiding more costly and laborious fault location finding practices.

公开(公告)号：US20160047765A1

公开(公告)日：2016-02-18

申请号：US14457768

申请日：2014-08-12

Applicant: ABB Inc.

Inventor： Xianyong Feng ,  Mirrasoul Mousavi

IPC: G01N25/72

CPC classification number: H01F27/402 ,  G01M3/002 ,  G01N25/18 ,  G01N25/72 ,  H01F2027/406

Abstract: 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.

Abstract translation: 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。