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61. 发明公开

EP1703612A2 Protective relay system 有权
标题翻译：保护继电器系统
公开(公告)号：EP1703612A2
公开(公告)日：2006-09-20
申请号：EP06014226.2
申请日：2002-08-26
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kase, Takahiro c/o K. K. Toshiba , Amo, Hidenari c/o K. K. Toshiba , Sonobe, Yasutaka c/o K. K. Toshiba
IPC分类号： H02H3/08 , H02H3/40
CPC分类号： H02H3/40 , H02H3/081 , H02H7/261
摘要： In a protective relay system according to an aspect of the present invention, a direction of a fault is correctly determined during system oscillation using one of a negative-phase-sequence relay (13) and a zero-phase-sequence relay (40). A circuit breaker is tripped only when an internal fault is determined at both terminals to be protected using a carrier signal (15-S, 16-R). Thus, even though a fault occurs during system oscillation, the circuit breaker (CB) can be tripped against the internal fault.
摘要翻译：在根据本发明一个方面的保护继电器系统中，在使用负相序继电器（13）和零相序继电器（40）中的一个在系统振荡期间正确地确定故障的方向。只有在使用载波信号（15-S，16-R）确定两端的内部故障时，断路器才会跳闸。因此，即使在系统振荡期间出现故障，断路器（CB）也会因内部故障而跳闸。

62. 发明公开

EP1481456A4 A PROTECTION DEVICE 审中-公开
标题翻译：保护装置
公开(公告)号：EP1481456A4
公开(公告)日：2006-09-06
申请号：EP03701348
申请日：2003-02-12
申请人： FULTEC PTY LTD
发明人： HARRIS RICHARD ALLEN
IPC分类号： H01L27/04 , H02H9/02 , H01L21/822 , H02H3/08 , H02H3/087 , H02H7/00 , H03K17/08 , H03K17/082 , H03K17/30 , H03K17/687
CPC分类号： H02H9/025 , H02H3/081 , H03K17/302
摘要： A protection device is enclosed. The device has a first MOSFET (Q 10), a second MOSFET (Q 11) and a third JFET (Q 12) with their conductive paths in series with the JFET (Q 12) being located between the MOSFETS (Q 10, Q 11). The source of the first MOSFET (Q 10) is connected to the gate of the second MOSFET (Q 11) and the source of the second MOSFET (Q 11) is connected to the gate of the first MOSFET (Q 10). The MOSFETS (Q 10, Q 11) and JFET (Q 12) together form a variable resistance circuit block connectable between an input and an output. The gate of the JFET (Q 12) being coupled to the input and the output by respective current sources.

63. 发明公开

EP1481456A1 A PROTECTION DEVICE 审中-公开
标题翻译：保护装置
公开(公告)号：EP1481456A1
公开(公告)日：2004-12-01
申请号：EP03701348.9
申请日：2003-02-12
申请人： Fultec Pty Ltd
发明人： HARRIS, Richard, Allen
IPC分类号： H02H3/14 , H03K17/00 , G01R1/36
CPC分类号： H02H9/025 , H02H3/081 , H03K17/302
摘要： A protection device is enclosed. The device has a first MOSFET (Q 10), a second MOSFET (Q 11) and a third JFET (Q 12) with their conductive paths in series with the JFET (Q 12) being located between the MOSFETS (Q 10, Q 11). The source of the first MOSFET (Q 10) is connected to the gate of the second MOSFET (Q 11) and the source of the second MOSFET (Q 11) is connected to the gate of the first MOSFET (Q 10). The MOSFETS (Q 10, Q 11) and JFET (Q 12) together form a variable resistance circuit block connectable between an input and an output. The gate of the JFET (Q 12) being coupled to the input and the output by respective current sources.

64. 发明公开

EP1335470A2 Directional comparison distance relay system 有权
标题翻译： Distanzrelaissystem mit Richtungsvergleich
公开(公告)号：EP1335470A2
公开(公告)日：2003-08-13
申请号：EP03002219.8
申请日：2003-01-31
申请人： Kabushiki Kaisha Toshiba
发明人： Kase, Takahiro, Intel. Prop. Div., Toshiba Corp. , Amo, Hidenari, Intel. Prop. Div., Toshiba Corp. , Sonobe, Yasutaka, Intel. Prop. Div., Toshiba Corp.
IPC分类号： H02H7/26 , H02H3/40
CPC分类号： H02H7/262 , H02H3/081 , H02H3/40
摘要： A directional comparison distance relay system for protecting a power transmission line. The relay system comprises a fault detection unit which includes a directional distance relay element for deciding whether a fault is in forward or reverse directions; a short-circuit distance relay element for deciding whether a fault is within a protection zone by distance calculation; and an evolving fault detecting unit for deciding an evolving fault when a forward earth fault directional relay in a single phase and a reverse directional relay in a phase are in operation. The relay system further comprises a block unit for blocking trip of a circuit breaker at a near end due to the short-circuit distance relay, and for blocking permissive trip signal to a circuit breaker at the far end, based on an operation of the evolving fault detecting unit.
摘要翻译：一种用于保护输电线路的方向比较距离继电器系统。该继电器系统包括故障检测单元，该故障检测单元包括用于判定故障是正向还是相反方向的方向距离继电器元件; 用于通过距离计算来确定故障是否在保护区内的短路距离继电器元件; 以及用于当在单相中的前向接地故障定向继电器和相位中的逆向继电器工作时，判定出现故障的演进故障检测单元。继电器系统还包括块单元，用于由于短路距离继电器而在近端阻断断路器的跳闸，并且基于演进的操作来阻止在远端的断路器的允许跳闸信号故障检测单元。

65. 发明公开

EP1279213A2 SENSITIVE GROUND FAULT DETECTION SYSTEM FOR USE IN COMPENSATED ELECTRIC POWER DISTRIBUTION NETWORKS 有权
标题翻译： DELICATEERDSCHLUSSÜBERWACHUNGSSYSTEM补偿使用电能配电网
公开(公告)号：EP1279213A2
公开(公告)日：2003-01-29
申请号：EP01930976.4
申请日：2001-04-30
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： ROBERTS, Jeffery, B. , HOU, Daqing , ALTUVE-FERRER, HectorRicardo Morales 1072
IPC分类号： H02H3/40
CPC分类号： H02H3/081 , H02H3/402 , H02H9/08
摘要： A system for detecting ground faults in a compensated electric power distribution network includes the determination of zero sequence voltage (V0) and zero sequence current (I0) on a power line and calculating the zero sequence conductance (G0) therefrom. The oepration of the conductance calculation circuit occurs only under selected power line conditions involving minimum values of zero sequence voltage, zero sequence current and positive sequence voltage, to ensure the accuracy of a fault direction determination. The conductance values are processed on an adaptive basis in which the difference between the most recent conductance value and a conductance value from a selected previous point in time is determined and then compared against threshold values to make forward and reverse fault declarations.

66. 发明公开

EP0963025A3 Faulted feeder detection in earth fault in electricity distribution network 有权
标题翻译：在配电系统在接地故障出现故障的电力电缆的检测
公开(公告)号：EP0963025A3
公开(公告)日：2002-12-04
申请号：EP99660092.0
申请日：1999-05-27
申请人： ABB Substation Automation Oy
发明人： Nymark, Kaj , Linqvist, Grels
IPC分类号： H02H3/38 , H02H7/26
CPC分类号： H02H3/382 , H02H3/081 , H02H9/08
摘要： A method for detecting a faulted feeder in an earth fault situation in an electricity distribution network, the electricity distribution network being multiphased (L1, L2 and L3) and comprising at least one supply point (HV/MV) having at least two feeders, the method comprising the steps of measuring voltage between a star point of the electricity distribution network and earth, i.e. zero voltage or a variable in a known phase shift therewith, measuring feeder-specifically a sum current (Σ|1, Σ|2) of feeder phases, i.e. zero current, comparing feeder-specifically a phase angle of the feeder zero current (Σ|1, Σ|2) with a phase angle of zero voltage or of a variable in a known phase shift therewith, detecting a feeder faulted if the phase angle of the feeder zero current (Σ|1, Σ|2) is within a given predetermined range when compared with zero voltage or the phase angle of the variable in a known phase shift therewith, whereby said predetermined range substantially exceeds 180° and the same predetermined range can be used for detecting a faulted feeder at least in two of the following alternative star point treatment methods in an electricity distribution network: a network isolated from earth, a network earthed via resistance at the star point, a network provided with an arc-suppression coil of earth-fault current or a combination of the two previous ones.

67. 发明公开

EP0769836A3 A directional element 失效
标题翻译：方向继电器
公开(公告)号：EP0769836A3
公开(公告)日：1997-06-18
申请号：EP96307413.3
申请日：1996-10-11
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： Roberts, Jeffrey B. , Gazman-Casillas, Armando
IPC分类号： H02H3/40
CPC分类号： H02H3/081 , H02H3/006 , H02H3/402
摘要： A directional element (40) which produces a quantity ζo related to the zero sequence source impedance of a power system relative to the location of the directional element (40), from values of zero sequence current (I R ) and an adjusted value of zero sequence voltage (3V o ). The impedance quantity (ζo) is then compared against first and second threshold quantities (Z OF and Z OR ) to identify the direction of a fault. Further, the zero sequence voltage-polarized directional element can be combined with other individual directional elements, including a zero sequence current-polarized directional element and a negative sequence voltage-polarized directional element to form a universal directional element for unbalanced faults, in which the individual directional elements operate in a particular sequence, with the other directional elements being blocked from operating if a prior directional element in the sequence provides a direction indication.

68. 发明授权

EP0316203B1 Protective relay 失效
标题翻译：保护继电器
公开(公告)号：EP0316203B1
公开(公告)日：1994-03-16
申请号：EP88310695.7
申请日：1988-11-11
申请人： GENERAL ELECTRIC COMPANY
发明人： Wilkinson, Stanley Bruce , Alexander, George Edmund
IPC分类号： H02H1/04 , H02H3/38 , H02H7/26
CPC分类号： H02H3/385 , H02H3/081 , H02H7/26

69. 发明公开

EP0316203A3 Protective relay 失效
标题翻译：保护继电器
公开(公告)号：EP0316203A3
公开(公告)日：1991-03-20
申请号：EP88310695.7
申请日：1988-11-11
申请人： GENERAL ELECTRIC COMPANY
发明人： Wilkinson, Stanley Bruce , Alexander, George Edmund
IPC分类号： H02H1/04 , H02H3/38 , H02H7/26
CPC分类号： H02H3/385 , H02H3/081 , H02H7/26
摘要： A protective relay for detecting faults within a predetermined protected zone of a three phase alternating current electrical power distribution system, of the type which utilizes at least one restraint signal in conjunction with at least one operate signal to generate a net operate signal, generates an operate quantity which is related to a zero sequence component of current flowing in the power distribution system and a second operate quantity which is related to a negative sequence component of the current flowing in the power distribution system. The operate quantities are summed to form an operate signal. An adaptive restraint, which is proportional to a negative sequence component of a phase voltage of the power distribution system, is generated and utilized to provide increased sensitivity to higher resistance ground faults. A portion of a positive sequence component of the current flowing in the power distribution signal is utilized as a restraint signal to prevent the unit from operating on negative sequence currents present during normal load conditions. Adaptive restraint enables the directional overcurrent unit to operate correctly should a second fault occur on the transmission line during the period that one pole is open.

70. 发明公开

EP4425729A1 VEHICLE POWER SUPPLY SYSTEM AND VEHICLE COMPRISING SAME 审中-实审
公开(公告)号：EP4425729A1
公开(公告)日：2024-09-04
申请号：EP23218902.7
申请日：2023-12-20
申请人： Nio Technology (Anhui) Co., Ltd
发明人： HUANG, Xi , JIN, Jiahang
IPC分类号： H02J1/00 , B60L50/60 , B60L58/20 , H02H3/087
CPC分类号： B60L58/20 , B60L50/66 , H02J1/086 , H02J2310/4820200101 , H02H3/081 , H02H3/087
摘要： The disclosure relates to a vehicle power supply system (10) and a vehicle comprising same. The system (10) comprises: a low-voltage battery (101), which is used to output a first voltage to serve as a first power supply; a voltage converter (102), which is configured to receive a second voltage that is output by a vehicle high-voltage battery (20), and convert the second voltage into the first voltage to serve as a second power supply that outputs the first voltage; and a power multiplexer (103), which comprises a first terminal (A) and a second terminal (B) respectively connected to the first power supply and the second power supply, wherein the first terminal (A) is capable of powering one of upper and lower half-bridges of a motor controller (30) of a vehicle, and the second terminal (B) is capable of powering the other of the upper and lower half-bridges of the motor controller (30); and the power multiplexer (103) is capable of controlling whether to allow for electricity flow from the second terminal B() to the first terminal (A) and electricity flow from the first terminal (A) to the second terminal (B).

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