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1.发明授权公开(公告)号：US09291686B2
公开(公告)日：2016-03-22
申请号：US13812255
申请日：2011-07-22
CPC分类号： G01R33/02 , G01R33/0064 , G01R33/12
摘要： A residual magnetic flux estimation device 1 includes a DC power-source control device 11 which controls a DC power source 300 to apply a DC voltage across two terminals of a Δ connection that is a secondary winding or a tertiary winding, a voltage measuring device 12 which measures a terminal voltage at the primary side of a three-phase transformer 200, a computing device 13 that determines a phase having a high voltage between the two phases other than the phase to which the voltage is applied, and a residual magnetic flux measuring device 14 that measures a phase-to-phase residual magnetic flux between the two phases other than the high-voltage phase, and estimates a measured value of the phase-to-phase residual magnetic flux as a maximum residual magnetic flux in the measurement-target three-phase transformer.
摘要翻译： 剩余磁通量估计装置1包括：直流电源控制装置11，其控制直流电源300，跨越Dgr的两个端子施加直流电压; 作为次级绕组或三次绕组的连接，测量三相变压器200的初级侧的端子电压的电压测量装置12，确定在两相之间具有高电压的相位的计算装置13 比施加电压的相位和残留磁通量测量装置14，其测量除了高电压相之外的两相之间的相间残留磁通量，并且估计相位 - 测量目标三相变压器中的相剩余磁通量作为最大剩余磁通量。
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2.发明申请METHOD OF ESTIMATING THE RESIDUAL MAGNETIC FLUX OF TRANSFORMER AND RESIDUAL MAGNETIC FLUX ESTIMATION DEVICE 有权估计变压器和残余磁通估计装置的残余磁通量的方法公开(公告)号：US20130176021A1
公开(公告)日：2013-07-11
申请号：US13812255
申请日：2011-07-22
IPC分类号： G01R33/02
CPC分类号： G01R33/02 , G01R33/0064 , G01R33/12
摘要： A residual magnetic flux estimation device 1 includes a DC power-source control device 11 which controls a DC power source 300 to apply a DC voltage across two terminals of a Δ connection that is a secondary winding or a tertiary winding, a voltage measuring device 12 which measures a terminal voltage at the primary side of a three-phase transformer 200, a computing device 13 that determines a phase having a high voltage between the two phases other than the phase to which the voltage is applied, and a residual magnetic flux measuring device 14 that measures a phase-to-phase residual magnetic flux between the two phases other than the high-voltage phase, and estimates a measured value of the phase-to-phase residual magnetic flux as a maximum residual magnetic flux in the measurement-target three-phase transformer.
摘要翻译： 剩余磁通估计装置1包括：直流电源控制装置11，其控制直流电源300，在作为次级绕组或三次绕组的三角形连接的两个端子上施加直流电压，电压测量装置12 其测量三相变压器200的初级侧的端子电压，计算装置13，其确定在施加电压的相位以外的两相之间具有高电压的相位，以及剩余磁通量 测量除了高电压相之外的两相之间的相间残留磁通的装置14，并将相位残留磁通的测量值估计为测量相位残余磁通中的最大剩余磁通量， 目标三相变压器。
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公开(公告)号：US09515479B2
公开(公告)日：2016-12-06
申请号：US13800029
申请日：2011-09-20
CPC分类号： H02H9/005 , H01H9/563 , H01H33/593 , Y10T307/858
摘要： According to one embodiment, there is provided an inrush current suppression apparatus that suppresses an inrush current generated when shunt capacitors are connected to a power system, the apparatus including a voltage measurement unit measuring power source voltages, a current measurement unit measuring circuit breaker currents, a polarity determination unit determining the polarities of residual voltages, a phase section detector detecting a phase section in which the polarities of the residual voltages match the polarities of the power source voltages, and a circuit breaker closing unit closing the circuit breaker within the phase section.
摘要翻译： 根据一个实施例，提供一种浪涌电流抑制装置，其抑制分流电容器连接到电力系统时产生的浪涌电流，该装置包括测量电源电压的电压测量单元，测量断路器电流的电流测量单元， 确定残余电压的极性的极性判定单元，检测残留电压的极性与电源电压的极性相对应的相位区间的相位区间检测器，以及在相位区间闭合断路器的断路器闭合单元 。
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公开(公告)号：US08749100B2
公开(公告)日：2014-06-10
申请号：US13018268
申请日：2011-01-31
IPC分类号： H01H47/00
CPC分类号： H02H9/002 , H02H1/0092 , Y10T307/747 , Y10T307/858
摘要： In some embodiments, a method is disclosed that includes measuring a waveform of a power source side voltage of a circuit breaker; measuring a waveform of a transmission line side voltage of the circuit breaker; calculating a waveform of a voltage between contacts of the circuit breaker that is a difference between the waveform of the power source side voltage and the waveform of the transmission line side voltage; calculating a waveform of an absolute value of the waveform of the voltage between contacts; extracting a waveform of a component in a frequency band which is lower than a frequency of the power source and higher than a frequency of a DC component from the waveform of the absolute value; detecting a cycle of the extracted waveform; and closing the circuit breaker based on the cycle.
摘要翻译： 在一些实施例中，公开了一种方法，其包括测量断路器的电源侧电压的波形; 测量断路器的传输线侧电压的波形; 计算作为电源侧电压的波形与传输线侧电压的波形之间的差的断路器的触点之间的电压的波形; 计算触点之间的电压的波形的绝对值的波形; 从所述绝对值的波形中提取低于所述电源的频率的频带中的分量的波形，并且高于直流分量的频率; 检测提取的波形的周期; 并根据循环关闭断路器。
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公开(公告)号：US08680713B2
公开(公告)日：2014-03-25
申请号：US13125913
申请日：2010-03-01
IPC分类号： H02J3/00
CPC分类号： H01H9/563 , H01H33/593 , Y10T307/587 , Y10T307/826 , Y10T307/944
摘要： An overvoltage suppression device which suppresses overvoltage that occurs when breakers which turn on/off the connection between a power source bus and a power transmission line, are turned on after the breakers are turned off. The overvoltage suppression device measures the waveform of voltage on the side of the power source and the voltage on the side of the power transmission line, and extracts the waveform of a component in a predetermined frequency band on the basis of the waveform obtained by multiplying the wave shape of the voltage on the side of the power source by the waveform of the voltage on the side of the power transmission line. The breakers are turned on on the basis of a cycle wherein the waveform is peaked.
摘要翻译： 在断路器断开之后，抑制在电源总线与输电线路之间的接通/断开的断路器发生的过电压的过电压抑制装置被接通。 过电压抑制装置测量电源侧的电压波形和电力传输线侧的电压，并且根据通过将电力线的倍增方向获得的波形提取预定频带中的分量的波形 通过电力传输线侧的电压的波形，在电源侧的电压的波形。 基于波形峰值的周期，断路器导通。
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公开(公告)号：US20130300215A1
公开(公告)日：2013-11-14
申请号：US13800029
申请日：2011-09-20
IPC分类号： H02H9/00
CPC分类号： H02H9/005 , H01H9/563 , H01H33/593 , Y10T307/858
摘要： According to one embodiment, there is provided an inrush current suppression apparatus that suppresses an inrush current generated when shunt capacitors are connected to a power system, the apparatus including a voltage measurement unit measuring power source voltages, a current measurement unit measuring circuit breaker currents, a polarity determination unit determining the polarities of residual voltages, a phase section detector detecting a phase section in which the polarities of the residual voltages match the polarities of the power source voltages, and a circuit breaker closing unit closing the circuit breaker within the phase section.
摘要翻译： 根据一个实施例，提供一种浪涌电流抑制装置，其抑制分流电容器连接到电力系统时产生的浪涌电流，该装置包括测量电源电压的电压测量单元，测量断路器电流的电流测量单元， 确定残余电压的极性的极性判定单元，检测残留电压的极性与电源电压的极性相对应的相位区间的相位区间检测器，以及在相位区间闭合断路器的断路器闭合单元 。
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公开(公告)号：US20110211288A1
公开(公告)日：2011-09-01
申请号：US13018268
申请日：2011-01-31
CPC分类号： H02H9/002 , H02H1/0092 , Y10T307/747 , Y10T307/858
摘要： In some embodiments, a method is disclosed that includes measuring a waveform of a power source side voltage of a circuit breaker; measuring a waveform of a transmission line side voltage of the circuit breaker; calculating a waveform of a voltage between contacts of the circuit breaker that is a difference between the waveform of the power source side voltage and the waveform of the transmission line side voltage; calculating a waveform of an absolute value of the waveform of the voltage between contacts; extracting a waveform of a component in a frequency band which is lower than a frequency of the power source and higher than a frequency of a DC component from the waveform of the absolute value; detecting a cycle of the extracted waveform; and closing the circuit breaker based on the cycle.
摘要翻译： 在一些实施例中，公开了一种方法，其包括测量断路器的电源侧电压的波形; 测量断路器的传输线侧电压的波形; 计算作为电源侧电压的波形与传输线侧电压的波形之间的差的断路器的触点之间的电压的波形; 计算触点之间的电压的波形的绝对值的波形; 从所述绝对值的波形中提取低于所述电源的频率的频带中的分量的波形，并且高于直流分量的频率; 检测提取的波形的周期; 并根据循环关闭断路器。
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公开(公告)号：US20110204727A1
公开(公告)日：2011-08-25
申请号：US13125913
申请日：2010-03-01
CPC分类号： H01H9/563 , H01H33/593 , Y10T307/587 , Y10T307/826 , Y10T307/944
摘要： An overvoltage suppression device which suppresses overvoltage that occurs when breakers which turn on/off the connection between a power source bus and a power transmission line, are turned on after the breakers are turned off. The overvoltage suppression device measures the waveform of voltage on the side of the power source and the voltage on the side of the power transmission line, and extracts the waveform of a component in a predetermined frequency band on the basis of the waveform obtained by multiplying the wave shape of the voltage on the side of the power source by the waveform of the voltage on the side of the power transmission line. The breakers are turned on on the basis of a cycle wherein the waveform is peaked.
摘要翻译： 在断路器断开之后，抑制在电源总线与输电线路之间的接通/断开的断路器发生的过电压的过电压抑制装置被接通。 过电压抑制装置测量电源侧的电压波形和电力传输线侧的电压，并且根据通过将电力线的倍增方向获得的波形提取预定频带中的分量的波形 通过电力传输线侧的电压的波形，在电源侧的电压的波形。 基于波形峰值的周期，断路器导通。
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公开(公告)号：US08564159B2
公开(公告)日：2013-10-22
申请号：US13014892
申请日：2011-01-27
IPC分类号： H01H47/00
CPC分类号： H02H9/002 , H01H9/563 , H02H7/04 , Y10T307/826
摘要： Inrush current suppression apparatus for suppressing a transformer inrush current including a transformer side voltage measurement unit which measures a voltage at a side of a transformer, a residual magnetic flux calculation unit which calculates three line-to-line residual magnetic fluxes, a power supply side voltage measurement unit which measures a voltage at a side of a power supply, a stable-state magnetic flux calculation unit which calculates three line-to-line stable-state magnetic fluxes, based on the voltage at the side of the power supply, a phase determination unit which determines a phase in which phases of the three line-to-line stable-state magnetic fluxes are respectively the same in polarity as phases of the three line-to-line residual magnetic fluxes, and a closing unit which closes the circuit breaker in the phase determined by the phase determination unit.
摘要翻译： 用于抑制变压器浪涌电流的浪涌电流抑制装置，包括测量变压器一侧的电压的变压器侧电压测量单元，计算三个线间剩余磁通量的剩余磁通计算单元，电源侧 电压测量单元，其测量电源侧的电压;稳定磁通计算单元，其基于电源侧的电压来计算三个线间稳定磁通; 确定三相线间稳定磁通的相位在三线间剩余磁通的相位极性相同的相位的相位确定单元，以及关闭单元 断相器由相位确定单元确定的相位。
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10.发明授权Magnetizing inrush current suppression device for transformer and control method of same 有权变压器励磁浪涌电流抑制装置及其控制方法公开(公告)号：US08217536B2
公开(公告)日：2012-07-10
申请号：US12486186
申请日：2009-06-17
CPC分类号： H02H9/002 , Y10T307/747
摘要： A first calculation part calculates the phase-to-phase steady-state magnetic flux of the three phases of the power supply. A second calculation part calculates the phase-to-phase residual magnetic flux of the three phases in the primary windings side of the transformer when the circuit breakers interrupt the transformer. A phase detection part detects a voltage phase at which polarity and magnitude of the calculated steady-state magnetic flux and residual magnetic flux coincide. Closing control part firstly causes only the circuit breakers of the two phases to close at the detected voltage phase, and then causes the circuit breaker of the remaining one phase to close.
摘要翻译： 第一计算部分计算电源三相的相间稳态磁通量。 当断路器中断变压器时，第二计算部分计算变压器初级绕组侧三相的相间残余磁通量。 相位检测部检测计算出的稳态磁通和残余磁通的极性和大小一致的电压相位。 关闭控制部分首先使两相断路器在检测到的电压相位闭合，然后使剩余一相的断路器闭合。
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