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1. 发明授权

US5659242A Apparatus for comparing two waveforms in real time 失效
标题翻译：用于实时比较两个波形的装置
公开(公告)号：US5659242A
公开(公告)日：1997-08-19
申请号：US454018
申请日：1995-05-30
申请人： Fernando Calero
发明人： Fernando Calero
IPC分类号： G06F7/02 , G01R19/00 , G01R19/25 , G01R21/133 , G01R25/00 , G01R31/00 , G01R31/02 , G06F1/02 , H02H3/00 , H02H3/38 , H02H3/40
CPC分类号： G01R19/0038 , G01R19/25 , G01R25/00 , H02H3/382 , H02H3/385 , G01R19/2513 , G01R21/133 , G01R31/02 , H02H3/003 , H02H3/38 , H02H3/402
摘要： A numerical comparator is disclosed. The numerical comparator employs numerical techniques based upon the behavior of the cylinder unit to compare phasors in real time. In one application of this invention, the torque signal generated by the numerical comparator, M.sub.k+1, is employed to determine whether a fault has occurred in a transmission line. Another application involves employing the output M.sub.k+1 to determine the direction of power flow in the transmission line. In yet another application, the output M.sub.k+1 is used to determine whether a voltage or current has exceeded a predetermined threshold.
摘要翻译：公开了一种数字比较器。数值比较器采用基于气缸单元的行为的数值技术来实时比较相量。在本发明的一个应用中，由数字比较器Mk + 1产生的转矩信号用于确定传输线路中是否发生故障。另一个应用包括采用输出Mk + 1来确定传输线中的功率流的方向。在另一个应用中，输出Mk + 1用于确定电压或电流是否已经超过预定阈值。

2. 发明授权

US5764044A Process for producing time dependent waveforms of positive and negative symmetrical sequence components of a power system's voltages or currents 失效
标题翻译：用于产生电力系统电压或电流的正负对称序列分量的时间相关波形的过程
公开(公告)号：US5764044A
公开(公告)日：1998-06-09
申请号：US907250
申请日：1997-08-06
申请人： Fernando Calero
发明人： Fernando Calero
IPC分类号： G06F7/02 , G01R19/00 , G01R19/25 , G01R21/133 , G01R25/00 , G01R31/00 , G01R31/02 , G06F1/02 , H02H3/00 , H02H3/38 , H02H3/40 , G01R23/175
CPC分类号： G01R19/0038 , G01R19/25 , G01R25/00 , H02H3/382 , H02H3/385 , G01R19/2513 , G01R21/133 , G01R31/02 , H02H3/003 , H02H3/38 , H02H3/402
摘要： A numerical comparator employs numerical techniques based upon the behavior of the cylinder unit to compare phasors in real time. In one application, the torque signal generated by the numerical comparator, M.sub.k+1, is employed to determine whether a fault has occurred in a transmission line. Another application involves employing the output M.sub.k+1 to determine the direction of power flow in the transmission line. In yet another application, the output M.sub.k+1 is used to determine whether a voltage or current has exceeded a predetermined threshold. In yet another application, time dependent waveforms of positive and negative symmetrical sequence components are digitally produced.
摘要翻译：数值比较器使用基于气缸单元的行为的数值技术来实时比较相量。在一个应用中，由数字比较器Mk + 1产生的转矩信号用于确定传输线路中是否发生故障。另一个应用包括采用输出Mk + 1来确定传输线中的功率流的方向。在另一个应用中，输出Mk + 1用于确定电压或电流是否已经超过预定阈值。在另一个应用中，数字地产生正负对称序列分量的时间相关波形。

3. 发明授权

US5796629A Protective relaying system comprising numerical comparator-based line differential processing circuitry 失效
标题翻译：包括基于数字比较器的线路差分处理电路的保护继电系统
公开(公告)号：US5796629A
公开(公告)日：1998-08-18
申请号：US574374
申请日：1995-12-18
申请人： Fernando Calero , Eric Udren
发明人： Fernando Calero , Eric Udren
IPC分类号： H02H7/26 , H02H3/00 , G06F19/00
CPC分类号： H02H7/262
摘要： Disclosed is a protective relaying system that trips a local circuit breaker (BL) connected to a transmission line by providing a trip signal ("TRIP.sub.-- BL") to the circuit breaker. The system comprises a local filter operatively coupled to the transmission line, and a local relay operatively coupled to the filter. The local filter receives inputs indicative of phase currents on the transmission line and provides an output ("VFL.sub.k ") derived from the inputs. The local relay (1) receives the output (VFL.sub.k) of the local filter, (2) receives an output ("VFR1.sub.k ", "VFR2.sub.k ") of at least one remote filter, and (3) generates the trip signal. The local filter and relay preferably employ substantially all digital electronic circuitry to generate the trip signal.
摘要翻译：公开了一种通过向断路器提供跳闸信号（“TRIP-BL”）来跳闸连接到传输线的本地断路器（BL）的保护继电系统。该系统包括可操作地耦合到传输线的本地滤波器和可操作地耦合到滤波器的本地继电器。本地滤波器接收指示传输线上的相电流的输入，并提供从输入端导出的输出（“VFLk”）。本地中继器（1）接收本地滤波器的输出（VFLk），（2）接收至少一个远程滤波器的输出（“VFR1k”，“VFR2k”），（3）产生跳闸信号。本地滤波器和继电器优选地基本上使用所有数字电子电路来产生跳闸信号。

4. 发明授权

US5576618A Process and apparatus for comparing in real time phase differences between phasors 失效
标题翻译：用于比较相量之间的实时相位差的过程和装置
公开(公告)号：US5576618A
公开(公告)日：1996-11-19
申请号：US326720
申请日：1994-10-20
申请人： Fernando Calero
发明人： Fernando Calero
IPC分类号： G06F7/02 , G01R19/00 , G01R19/25 , G01R21/133 , G01R25/00 , G01R31/00 , G01R31/02 , G06F1/02 , H02H3/00 , H02H3/38 , H02H3/40 , G01K25/00
CPC分类号： G01R19/0038 , G01R19/25 , G01R25/00 , H02H3/382 , H02H3/385 , G01R19/2513 , G01R21/133 , G01R31/02 , H02H3/003 , H02H3/38 , H02H3/402
摘要： A numerical comparator is disclosed. The numerical comparator employs numerical techniques based upon the behavior of the cylinder unit to compare phasors in real time. In one application of this invention, the torque signal generated by the numerical comparator, M.sub.k+1, is employed to determine whether a fault has occurred in a transmission line. Another application involves employing the output M.sub.k+1 to determine the direction of power flow in the transmission line. In yet another application, the output M.sub.k+1 is used to determine whether a voltage or current has exceeded a predetermined threshold.
摘要翻译：公开了一种数字比较器。数值比较器采用基于气缸单元的行为的数值技术来实时比较相量。在本发明的一个应用中，由数字比较器Mk + 1产生的转矩信号用于确定传输线路中是否发生故障。另一个应用包括采用输出Mk + 1来确定传输线中的功率流的方向。在另一个应用中，输出Mk + 1用于确定电压或电流是否已经超过预定阈值。

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