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1.发明申请Method and apparatus for time synchronization of devices within electrical power systems 审中-公开电力系统中设备时间同步的方法和装置公开(公告)号：US20070133724A1
公开(公告)日：2007-06-14
申请号：US11299426
申请日：2005-12-12
IPC分类号： H04L7/00
CPC分类号： H04L7/0008 , H04B2203/5445 , H04J3/0638
摘要： A method for distributing a timing signal to a device. The method includes receiving a timing signal from a timing source, receiving a power signal, superimposing the timing signal on the power signal to facilitate creating a different power signal to be distributed to the device, decoding the timing signal from the power signal within the device, and adjusting an internal clock of the device to facilitate synchronizing the internal clock with the decoded timing signal.
摘要翻译： 一种用于将定时信号分配到设备的方法。 该方法包括从定时源接收定时信号，接收功率信号，将定时信号叠加在功率信号上，以便于产生要分配给设备的不同功率信号，从设备内的功率信号中解码定时信号 并且调整该器件的内部时钟以便于使内部时钟与解码的定时信号同步。
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2.发明申请Intelligent electronic device with embedded multi-port data packet controller 有权具有嵌入式多端口数据包控制器的智能电子设备公开(公告)号：US20070147415A1
公开(公告)日：2007-06-28
申请号：US11317477
申请日：2005-12-23
CPC分类号： H04L43/0817 , Y04S40/168
摘要： An intelligent electronic device (IED) configured to supervise a process having a state has at least one of a current, voltage or resistive input configured to monitor the state of the process, a binary status input configured to monitor the state of the process, a binary status input configured to receive a digitally encoded serial communication package for monitoring the state of the process, a control output configured to output a signal to control process protection, control, or automation, or a combination thereof, or a control output configured to output a digitally encoded serial communication package to control protection, control, or automation, or a combination thereof. The IED is also configured to facilitate digital communication between at least two compatible devices by directing communication packets from ports connected to an originating compatible device to ports connected to a destination compatible device.
摘要翻译： 被配置为监视具有状态的处理的智能电子设备（IED）具有被配置为监视进程状态的电流，电压或电阻输入中的至少一个，被配置为监视进程的状态的二进制状态输入， 二进制状态输入，被配置为接收用于监视进程状态的数字编码的串行通信包，被配置为输出信号以控制过程保护，控制或自动化或其组合的控制输出，或被配置为输出的控制输出 用于控制保护，控制或自动化的数字编码串行通信包或其组合。 IED还被配置为通过将连接到始发兼容设备的端口的通信分组引导到连接到目的地兼容设备的端口来促进至少两个兼容设备之间的数字通信。
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3.发明授权Fault recording and sequence of events recording device capable of recording communication-based signals related to electrical power systems 有权能记录与电力系统相关的基于通信的信号的事件记录装置的故障记录和顺序公开(公告)号：US07552367B2
公开(公告)日：2009-06-23
申请号：US10710793
申请日：2004-08-03
CPC分类号： H02J13/0013 , H02H1/0053 , H04J3/0658 , H04J3/0685 , H04L41/0813 , H04L43/08 , Y02E60/7807 , Y04S40/12 , Y04S40/162 , Y04S40/168
摘要： A method for recording analog signals and digitally encoded information associated with primary and secondary devices of an electric power system includes: receiving a plurality of analog output signals and a plurality of ON/OFF status signals from the electric power system; receiving a time-synchronization analog signal and/or a time-synchronization data packet from a time synchronization source; maintaining an internal clock synchronized with the synchronization source; sampling and digitizing the plurality of analog output signals; monitoring a status and/or a change of status of the plurality of ON/OFF status signals; receiving digitally encoded information signals as incoming data packets; decoding and analyzing the incoming data packets; analyzing the plurality of analog output signals and digitally encoded information signals using a triggering algorithm; and storing digitized analog output signals and digitally encoded information signals together with corresponding timing information in a record as fault and sequence of events records.
摘要翻译： 用于记录与电力系统的一次和二次装置相关联的模拟信号和数字编码信息的方法包括：从电力系统接收多个模拟输出信号和多个ON / OFF状态信号; 从时间同步源接收时间同步模拟信号和/或时间同步数据分组; 保持与同步源同步的内部时钟; 对多个模拟输出信号进行采样和数字化; 监视多个ON / OFF状态信号的状态和/或状态变化; 接收数字编码的信息信号作为输入数据分组; 对输入的数据包进行解码和分析; 使用触发算法分析多个模拟输出信号和数字编码信息信号; 并将数字化的模拟输出信号和数字编码的信息信号与记录中的对应定时信息一起存储为事件和事件序列记录。
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4.发明申请METHOD AND SYSTEM FOR COMMUNICATIONS CHANNEL DELAY ASYMMETRY COMPENSATION USING GLOBAL POSITIONING SYSTEMS 有权使用全球定位系统进行通信信道延迟不对称补偿的方法和系统公开(公告)号：US20050036254A1
公开(公告)日：2005-02-17
申请号：US10605138
申请日：2003-09-10
申请人： William Premerlani , Bogdan Kasztenny , Ilia Voloh
发明人： William Premerlani , Bogdan Kasztenny , Ilia Voloh
CPC分类号： H04J3/0682 , H02H3/302 , H02H7/261 , H04J3/0644 , H04J3/14 , H04J2203/006
摘要： A method for compensating for communications channel delay asymmetry in a current differential protection system includes determining an apparent sampling clock offset for a communications channel, the apparent sampling clock offset between a first sampling clock and a second sampling clock configured within the current differential protection system. An apparent global positioning system (GPS) clock offset is determined for the communications channel, the apparent GPS clock offset between a plurality of GPS time stamps corresponding to the first and said second sampling clocks. A compensated clock offset is determined by subtracting the apparent GPS clock offset from the apparent sampling clock offset so as to cancel out a channel asymmetry component of deviation in the apparent GPS and sampling clock off-sets.
摘要翻译： 用于补偿电流差动保护系统中的通信信道延迟不对称的方法包括确定通信信道的表观采样时钟偏移量，在第一采样时钟和在当前差动保护系统内配置的第二采样时钟之间的视在采样时钟偏移。 为通信信道确定明显的全球定位系统（GPS）时钟偏移，对应于第一和第二采样时钟的多个GPS时间戳之间的视在GPS时钟偏移。 通过从表观采样时钟偏移中减去表观GPS时钟偏移量来确定补偿时钟偏移，以抵消视在GPS和采样时钟偏移中的偏差的信道不对称分量。
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5.发明授权Magnetizing inrush restraint method and relay for protection of power transformers 有权用于电力变压器保护的励磁涌流约束方法和继电器公开(公告)号：US06483680B1
公开(公告)日：2002-11-19
申请号：US09621732
申请日：2000-07-21
申请人： Ara Kulidjian , Bogdan Kasztenny
发明人： Ara Kulidjian , Bogdan Kasztenny
IPC分类号： H02H704
CPC分类号： H02H7/045 , H02H1/043 , H02H3/52 , H02H7/0455
摘要： A method and relay for magnetizing inrush restraint in protective relays for power transformers. The method utilizes the phase angle relation between the fundamental component and the second harmonic in addition to the magnitude ratio. This is accomplished by calculating and utilizing the complex second harmonic ratio. The specially shaped operating characteristic for the complex second harmonic ratio is made dynamic providing for better security without jeopardizing dependability of the transformer protective relay.
摘要翻译： 用于电力变压器保护继电器励磁涌流约束的方法和继电器。 除了幅度比之外，该方法利用基波分量与二次谐波之间的相位角关系。 这是通过计算和利用复数二次谐波比来实现的。 复杂二次谐波比的特殊形状工作特性是动态的，提供更好的安全性，而不会危及变压器保护继电器的可靠性。
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公开(公告)号：US20060247874A1
公开(公告)日：2006-11-02
申请号：US11119113
申请日：2005-04-29
IPC分类号： G01R19/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A phasor measurement system is provided for computing synchronized phasor measurements. The phasor measurement system includes acquisition circuitry for acquiring voltage or current values from a power line, sampling circuitry for sampling the voltage or current values, and processing circuitry for computing a phasor and at least one time derivative of the phasor based on the sampled voltage or current values and for computing a synchronized phasor value based on the phasor and the at least one time derivative of the phasor.
摘要翻译： 提供相量测量系统用于计算同步相量测量。 相量测量系统包括用于从电力线获取电压或电流值的采集电路，用于对电压或电流值进行采样的采样电路，以及用于基于采样电压计算相量和相量的至少一次时间导数的处理电路， 基于相量和相量的至少一个时间导数来计算同步相量值的当前值。
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7.发明授权Method and system for communications channel delay asymmetry compensation using global positioning systems 有权使用全球定位系统的通信信道延迟不对称补偿方法和系统公开(公告)号：US07126800B2
公开(公告)日：2006-10-24
申请号：US10605138
申请日：2003-09-10
IPC分类号： H02H3/00
CPC分类号： H04J3/0682 , H02H3/302 , H02H7/261 , H04J3/0644 , H04J3/14 , H04J2203/006
摘要： A method for compensating for communications channel delay asymmetry in a current differential protection system includes determining an apparent sampling clock offset for a communications channel, the apparent sampling clock offset between a first sampling clock and a second sampling clock configured within the current differential protection system. An apparent global positioning system (GPS) clock offset is determined for the communications channel, the apparent GPS clock offset between a plurality of GPS time stamps corresponding to the first and said second sampling clocks. A compensated clock offset is determined by subtracting the apparent GPS clock offset from the apparent sampling clock offset so as to cancel out a channel asymmetry component of deviation in the apparent GPS and sampling clock off-sets.
摘要翻译： 用于补偿电流差动保护系统中的通信信道延迟不对称的方法包括确定通信信道的表观采样时钟偏移量，在第一采样时钟和在当前差动保护系统内配置的第二采样时钟之间的视在采样时钟偏移。 为通信信道确定明显的全球定位系统（GPS）时钟偏移，对应于第一和第二采样时钟的多个GPS时间戳之间的视在GPS时钟偏移。 通过从表观采样时钟偏移中减去表观GPS时钟偏移量来确定补偿时钟偏移，以抵消视在GPS和采样时钟偏移中的偏差的信道不对称分量。
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8.发明申请公开(公告)号：US20060029105A1
公开(公告)日：2006-02-09
申请号：US10710793
申请日：2004-08-03
IPC分类号： H04J3/06
CPC分类号： H02J13/0013 , H02H1/0053 , H04J3/0658 , H04J3/0685 , H04L41/0813 , H04L43/08 , Y02E60/7807 , Y04S40/12 , Y04S40/162 , Y04S40/168
摘要： A method and apparatus for recording analog signals and digitally encoded information associated with primary devices of an electric power system and secondary devices associated with the electric power system, the apparatus includes a hosting device configured for: receiving a plurality of analog output signals from corresponding transducers of the electric power system; receiving a plurality of ON/OFF status signals from the primary and secondary devices of the electric power system; receiving at least one of a time-synchronization analog signal from a time synchronization source and a time-synchronization data packet from the time synchronization source over a communication medium; maintaining an internal clock synchronized with the synchronization source for time synchronization; sampling and digitizing the analog output signals; monitoring at least one of a status and a change of status of the ON/OFF status signals; receiving digitally encoded information signals as data packets via a communication port; decoding and analyzing the content of the incoming data packets; analyzing both the analog output signals and digitally encoded information signals using a user-programmable triggering mechanism; and a non-volatile memory storage medium in operable communication with the hosting device, the non-volatile memory storage medium storing the incoming analog output and digitally encoded information signals together with corresponding timing information in a record as fault and sequence of events records.
摘要翻译： 一种用于记录与电力系统的主要装置和与电力系统相关联的辅助装置相关联的模拟信号和数字编码信息的方法和装置，所述装置包括托管装置，其被配置为：从相应的换能器接收多个模拟输出信号 的电力系统; 从电力系统的主设备和次设备接收多个ON / OFF状态信号; 通过通信介质从时间同步源接收来自时间同步源的时间同步模拟信号和时间同步数据分组中的至少一个; 保持与同步源同步的内部时钟进行时间同步; 对模拟输出信号进行采样和数字化; 监视ON / OFF状态信号的状态和状态变化中的至少一个; 经由通信端口接收数字编码信息信号作为数据包; 解码和分析输入数据包的内容; 使用用户可编程触发机制分析模拟输出信号和数字编码信息信号; 以及与主机设备可操作地通信的非易失性存储器存储介质，所述非易失性存储器存储介质将输入的模拟输出和数字编码的信息信号与记录中的对应定时信息一起存储为故障和事件序列记录。
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9.发明申请METHODS AND SYSTEM FOR DETECTING WINDING FAULTS IN A GENERATOR WITH PARALLEL WINDINGS 有权用于检测具有平行绕组的发电机中的绕组故障的方法和系统公开(公告)号：US20080042683A1
公开(公告)日：2008-02-21
申请号：US11831366
申请日：2007-07-31
申请人： Bogdan Kasztenny , Dale Finney , Michael McClure
发明人： Bogdan Kasztenny , Dale Finney , Michael McClure
CPC分类号： H02H7/06 , H02H1/0092
摘要： A method for detecting stator ground faults in a generator is described. The method includes receiving a neutral voltage signal from a neutral point of a stator, receiving a plurality of terminal voltage and current signals from the stator, deriving a magnitude of a harmonic component from the neutral voltage signal, deriving a total complex power from the terminal voltage and current signals, calculating an expected value of a harmonic based on the complex power at a first time and a plurality of values of the complex power, where the values of the complex power are measured at times before the first time, and comparing the expected value and a measured value of the harmonic.
摘要翻译： 描述了一种用于检测发电机中定子接地故障的方法。 该方法包括从定子的中性点接收中性电压信号，从定子接收多个端子电压和电流信号，从中性电压信号导出谐波分量的幅度，从终端导出总复合功率 电压和电流信号，基于第一时间的复数功率计算谐波的期望值，以及复数功率的多个值，其中复数功率的值在第一时间之前被测量，并将 预期值和谐波的测量值。
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公开(公告)号：US06529010B1
公开(公告)日：2003-03-04
申请号：US09582087
申请日：2000-09-05
IPC分类号： G01R3100
CPC分类号： G01R31/085
摘要： The present invention relates to a method for locating a fault on a power transmission line which is series-compensated with capacitors. The site of the fault is determined with the aid of measured currents and voltages at one of the two ends of the power transmission line before and after the occurrence of the fault and a calculating algorithm based on impedance models of the power transmission line before and after the occurrence of the fault.
摘要翻译： 本发明涉及一种用电容串联补偿的输电线路故障定位方法。 故障现场借助于故障发生前后输电线两端的测量电流和电压，以及基于前后输电线阻抗模型的计算算法， 发生故障。
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