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公开(公告)号：US20130193946A1
公开(公告)日：2013-08-01
申请号：US13877756
申请日：2010-12-17
申请人： Kenji Kamei , Sho Tokoyoda , Tomohito Mori , Hiroki Ito , Sadayuki Kinoshita
发明人： Kenji Kamei , Sho Tokoyoda , Tomohito Mori , Hiroki Ito , Sadayuki Kinoshita
IPC分类号： G05F5/00
摘要： An inrush current suppressing device includes a residual-magnetic-flux calculating unit configured to retain an interruption characteristic of a breaker and an attenuation characteristic of a magnetic flux that are estimated by measurement, analysis, or the like beforehand, and apply the attenuation characteristic to a magnetic flux value at the time of current interruption obtained based on the interruption characteristic of the breaker to calculate a residual magnetic flux value. The breaker is turned on in a power supply voltage phase in which the calculated residual magnetic flux value and a theoretical value of a steady magnetic flux match.
摘要翻译： 浪涌电流抑制装置包括残留磁通计算单元，其被配置为保持断路器的中断特性和通过测量，分析等预测的磁通的衰减特性，并将衰减特性应用于 基于断路器的中断特性获得的电流中断时的磁通量值，以计算剩余磁通量值。 断路器在计算的剩余磁通值和稳定磁通的理论值匹配的电源电压相位中接通。
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公开(公告)号：US08526155B2
公开(公告)日：2013-09-03
申请号：US13129690
申请日：2008-12-25
申请人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
发明人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
CPC分类号： H01H9/563
摘要： A phase-control switchgear includes a circuit breaker, a phase difference detection unit, a storage unit, and a circuit breaker control unit. The phase difference detection unit detects a phase difference between voltages of a specific phase (U-phase) of buses to which three-phase generators are respectively connected, at a plurality of time points. The storage unit stores the detected phase differences. When the three-phase generators are out of synchronization, the circuit breaker control unit estimates a breaking time point at which the phase difference between the voltages of the U-phase of the buses will be in the range of not less than −80° and not more than 80°, based on the phase differences at the plurality of time points stored in the storage unit. The circuit breaker control unit opens the circuit breaker to break a current at the estimated breaking time point. This makes it possible to suppress a transient voltage generated between electrodes of the circuit breaker after the current is broken.
摘要翻译： 相位控制开关装置包括断路器，相位差检测单元，存储单元和断路器控制单元。 相位差检测单元在多个时间点检测分别连接有三相发电机的母线的特定相位（U相）的电压之间的相位差。 存储单元存储检测到的相位差。 当三相发电机不同步时，断路器控制单元估计总线的U相电压之间的相位差在-80°以上的断开时间点，以及 基于存储在存储单元中的多个时间点的相位差，不大于80°。 断路器控制单元打开断路器以在估计的断开时间点断开电流。 这使得可以在电流断开之后抑制断路器的电极之间产生的瞬态电压。
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公开(公告)号：US20110228437A1
公开(公告)日：2011-09-22
申请号：US13129690
申请日：2008-12-25
申请人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
发明人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
IPC分类号： H01H73/02
CPC分类号： H01H9/563
摘要： A phase-control switchgear includes a circuit breaker, a phase difference detection unit, a storage unit, and a circuit breaker control unit. The phase difference detection unit detects a phase difference between voltages of a specific phase (U-phase) of buses to which three-phase generators are respectively connected, at a plurality of time points. The storage unit stores the detected phase differences. When the three-phase generators are out of synchronization, the circuit breaker control unit estimates a breaking time point at which the phase difference between the voltages of the U-phase of the buses will be in the range of not less than −80° and not more than 80°, based on the phase differences at the plurality of time points stored in the storage unit. The circuit breaker control unit opens the circuit breaker to break a current at the estimated breaking time point. This makes it possible to suppress a transient voltage generated between electrodes of the circuit breaker after the current is broken.
摘要翻译： 相位控制开关装置包括断路器，相位差检测单元，存储单元和断路器控制单元。 相位差检测单元在多个时间点检测分别连接有三相发电机的母线的特定相位（U相）的电压之间的相位差。 存储单元存储检测到的相位差。 当三相发电机不同步时，断路器控制单元估计总线的U相电压之间的相位差在-80°以上的断开时间点，以及 基于存储在存储单元中的多个时间点的相位差，不大于80°。 断路器控制单元打开断路器以在估计的断开时间点断开电流。 这使得可以在电流断开之后抑制断路器的电极之间产生的瞬态电压。
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公开(公告)号：US07696648B2
公开(公告)日：2010-04-13
申请号：US12051498
申请日：2008-03-19
申请人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
发明人： Sadayuki Kinoshita , Kenji Kamei , Tomohito Mori , Hiroki Ito
CPC分类号： H02H9/002 , Y10T307/826
摘要： A control unit of an electric power supply system causes, responsive to a closing command signal, a switch corresponding to R phase to be thrown at a timing when a stationary magnetic flux and a residual magnetic flux of R phase are coincident with each other and then subsequently causes other switches corresponding to S phase and T phase to be thrown at a timing which is delayed from a zero point of an alternating voltage of R phase by a predetermined phase angle of 0-30 degrees, such that the difference of the stationary magnetic flux and the residual magnetic flux of each of S phase and T phase is minimum. Therefore, an exciting incoming current which flows into a three-phase transformer at a time of throwing a three-phase breaker provided with interpole capacitors can be suppressed.
摘要翻译： 电源系统的控制单元响应于闭合指令信号，在R相的固定磁通和残余磁通量相互一致的时刻引起对应于R相的开关，并且然后 随后使得对应于S相和T相的其它开关在从R相的交流电压的零点延迟了0-30度的预定相位角的定时处被抛出，使得固定磁 S相和T相各自的磁通量和残余磁通量最小。 因此，可以抑制在设置有极间电容器的三相断路器投入时流入三相变压器的励磁输入电流。
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公开(公告)号：US20090097173A1
公开(公告)日：2009-04-16
申请号：US12051498
申请日：2008-03-19
申请人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori , Hiroki Ito
发明人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori , Hiroki Ito
CPC分类号： H02H9/002 , Y10T307/826
摘要： A control unit of an electric power supply system causes, responsive to a closing command signal, a switch corresponding to R phase to be thrown at a timing when a stationary magnetic flux and a residual magnetic flux of R phase are coincident with each other and then subsequently causes other switches corresponding to S phase and T phase to be thrown at a timing which is delayed from a zero point of an alternating voltage of R phase by a predetermined phase angle of 0-30 degrees, such that the difference of the stationary magnetic flux and the residual magnetic flux of each of S phase and T phase is minimum. Therefore, an exciting incoming current which flows into a three-phase transformer at a time of throwing a three-phase breaker provided with interpole capacitors can be suppressed.
摘要翻译： 电源系统的控制单元响应于闭合指令信号，在R相的固定磁通和残余磁通量相互一致的时刻引起对应于R相的开关，并且然后 随后使得对应于S相和T相的其它开关在从R相的交流电压的零点延迟了0-30度的预定相位角的定时处被抛出，使得固定磁 S相和T相各自的磁通量和残余磁通量最小。 因此，可以抑制在设置有极间电容器的三相断路器投入时流入三相变压器的励磁输入电流。
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公开(公告)号：US09170597B2
公开(公告)日：2015-10-27
申请号：US13877756
申请日：2010-12-17
申请人： Kenji Kamei , Sho Tokoyoda , Tomohito Mori , Hiroki Ito , Sadayuki Kinoshita
发明人： Kenji Kamei , Sho Tokoyoda , Tomohito Mori , Hiroki Ito , Sadayuki Kinoshita
摘要： An inrush current suppressing device includes a residual-magnetic-flux calculating unit configured to retain an interruption characteristic of a breaker and an attenuation characteristic of a magnetic flux that are estimated by measurement, analysis, or the like beforehand, and apply the attenuation characteristic to a magnetic flux value at the time of current interruption obtained based on the interruption characteristic of the breaker to calculate a residual magnetic flux value. The breaker is turned on in a power supply voltage phase in which the calculated residual magnetic flux value and a theoretical value of a steady magnetic flux match.
摘要翻译： 浪涌电流抑制装置包括残留磁通计算单元，其被配置为保持断路器的中断特性和通过测量，分析等预测的磁通的衰减特性，并将衰减特性应用于 基于断路器的中断特性获得的电流中断时的磁通量值，以计算剩余磁通量值。 断路器在计算的剩余磁通值和稳定磁通的理论值匹配的电源电压相位中接通。
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7.发明授权公开(公告)号：US08008810B2
公开(公告)日：2011-08-30
申请号：US12527230
申请日：2007-04-20
摘要： A residual-magnetic-flux calculating unit includes a voltage-change-rate detecting unit that detects a transformer-voltage change rate from a phase voltage between a breaker and a transformer, a residual-magnetic-flux detecting unit that detects a residual magnetic flux remaining on the transformer based on the phase voltage, and a breaker-switching-state identifying unit that detects a switching state of the breaker. The residual-magnetic-flux calculating unit recalculates the residual magnetic flux based on the transformer-voltage change rate and a predetermined threshold while the breaker is in an open state.
摘要翻译： 剩余磁通量计算单元包括电压变化率检测单元，其从断路器和变压器之间的相电压检测变压器电压变化率，剩余磁通量检测单元检测残余磁通量 基于相电压保持在变压器上，以及断路器切换状态识别单元，其检测断路器的开关状态。 剩余磁通计算单元在断路器处于打开状态的同时基于变压器电压变化率和预定阈值重新计算剩余磁通量。
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公开(公告)号：US07711502B2
公开(公告)日：2010-05-04
申请号：US11605220
申请日：2006-11-29
IPC分类号： H02H3/00
CPC分类号： H01H9/563 , H01H2009/566 , Y10T307/918 , Y10T307/924
摘要： A power switching control apparatus for acquiring pieces of making operation time information of individual phase switches more precisely according to loads and making instants. Making operation time information detecting means outputs the making operation time information of at least one of individual phase switches on the basis of the motion of the movable contact of the phase switch, and outputs the making operation time information of at least another of the individual phase switches on the basis of the phase current of the phase switch. Moreover, the making operation time information detecting means outputs the making operation time information ITA, ITB and ITC of an A-phase switch, a B-phase switch and a C-phase switch individually on the basis of either the detected output of a contact operation sensor and the detected output of a phase current sensor.
摘要翻译： 一种功率切换控制装置，用于根据负载和制造时刻更精确地获取使各个相切换的操作时间信息的片段。 操作时间信息检测装置基于相位开关的可动触点的运动输出各个相位开关中的至少一个的制造操作时间信息，并输出各个相位的至少另一个的制造操作时间信息 根据相位开关的相电流开关。 此外，制造操作时间信息检测装置基于检测到的触点输出分别输出A相开关，B相开关和C相开关的制作操作时间信息ITA，ITB和ITC 操作传感器和检测到的相电流传感器的输出。
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9.发明申请Transformer Operation Control Apparatus and Method for Suppressing Magnetizing Inrush Current 有权变压器运行控制装置及抑制磁化冲击电流的方法公开(公告)号：US20090134862A1
公开(公告)日：2009-05-28
申请号：US12103748
申请日：2008-04-16
申请人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori
发明人： Sadayuki KINOSHITA , Kenji Kamei , Tomohito Mori
IPC分类号： H01F30/12
CPC分类号： H02H9/002 , Y10T307/76
摘要： A control portion 80 for a breaker 10 causes the breaker 10 to apply a current of a first apply phase (R phase) at a timing where a residual flux of R phase agrees with a steady magnetic flux. Thereafter, the control portion 80 determines whether or not the current measured by current measuring portions 40R, 40S, 40T exceeds a threshold value. When the measured current does not exceed the threshold value, the control portion 80 causes the breaker 10 to apply currents of the other two phases (S and T phases) at a timing where a voltage of R phase becomes zero. When the measured current exceeds the threshold value, the control portion 80 causes the breaker 10 to once shut off the current of R phase and to apply again the current of R phase.
摘要翻译： 用于断路器10的控制部分80使得断路器10在R相的剩余通量与稳定磁通量一致的定时处施加第一施加相位（R相）的电流。 此后，控制部分80确定由电流测量部分40R，40S，40T测量的电流是否超过阈值。 当测量电流不超过阈值时，控制部分80使断路器10在R相电压为零的定时处施加其它两相（S和T相）的电流。 当测量电流超过阈值时，控制部分80使断路器10一旦切断R相的电流并再次施加R相的电流。
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公开(公告)号：US20080123234A1
公开(公告)日：2008-05-29
申请号：US11907054
申请日：2007-10-09
IPC分类号： H02H3/00
摘要： A switchgear control apparatus includes a zero point interval detecting circuit, an interruption time judgment circuit and a reclosing time decision circuit. The zero point interval detecting circuit detects time intervals between successive zero points of a main circuit current. The interruption time judgment circuit judges that interruption time of the main circuit current is time of a zero point immediately preceding a zero point at which a difference between the time interval between two successive zero points and half the period of a commercial AC voltage exceeds a specific value. Upon detecting the gradient of the main circuit current at the interruption time, the reclosing time decision circuit sets reclosing time at a point in phase where the AC voltage has a maximum negative value if the gradient is positive, and at a point in phase where the AC voltage has a maximum positive value if the gradient is negative.
摘要翻译： 一种开关设备控制装置，包括零点间隔检测电路，中断时间判断电路和重合闸时间判定电路。 零点间隔检测电路检测主电路电流的连续零点之间的时间间隔。 中断时间判断电路判断主电路电流的中断时间是紧邻零点之间的零点的时间，在该零点之间，两个连续的零点之间的时间间隔与商用交流电压的一半的时间间隔之间的差超过特定的 值。 在检测到中断时的主电路电流的梯度时，重合闸时间决定电路将梯形为正的交流电压为最大负值的同相位置的重新闭合时间设定在同相位置 如果梯度为负，则交流电压具有最大正值。
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