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    • 31. 发明申请
    • FEHLERERKENNUNG IN ENERGIEVERSORGUNGSNETZEN
    • 故障检测能源供应网络
    • WO2014000769A1
    • 2014-01-03
    • PCT/EP2012/062314
    • 2012-06-26
    • SIEMENS AKTIENGESELLSCHAFTJANSSEN, PierreMAUN, Jean-Claude
    • JANSSEN, PierreMAUN, Jean-Claude
    • H02J3/00H02H6/00
    • G01R31/40H02H3/006H02H7/261H02J3/00H02J13/0006H02J2003/007H02S50/10Y02E60/725Y02E60/74Y02E60/76Y04S10/20Y04S10/30Y04S40/22
    • Die Erfindung betrifft ein Verfahren zum Erkennen eines Fehlers in einem Energieversorgungsnetz (10, 40), bei dem für mehrere Messstellen (M1, M2, M3) Zustandswerte bestimmt werden, die einen an der jeweiligen Messstelle (M1, M2, M3) vorliegenden elektrischen Zustand des Energieversorgungsnetzes (10, 40) angeben, die Zustandswerte zu einer Leitstelleneinrichtung (17) übermittelt werden, die eine Auswerteeinrichtung (18) umfasst, und die Zustandswerte von der Auswerteeinrichtung (18) zur Erkennung eines in dem Energieversorgungsnetz (10, 40) vorliegenden Fehlers herangezogen werden. Um ein solches Verfahren derart fortzubilden, dass auftretende Fehler, insbesondere auch in Energieversorgungsnetzen mit geringen Kurzschlussströmen, mit hoher Zuverlässigkeit und Selektivität erkannt werden können, wird vorgeschlagen, dass mittels der Auswerteeinrichtung (18) eine Zustandsschätzung ausgeführt wird, die sich einer Modellbeschreibung des elektrischen Energieversorgungsnetzes (10, 40) bedient, die zur Beschreibung möglicher elektrischer Zustände des Energieversorgungsnetzes (10, 40) anhand von Zustandsvariablen geeignet ist, während der Zustandsschätzung überprüft wird, ob sich durch die Modellbeschreibung ein elektrischer Zustand beschreiben lässt, der hinsichtlich der für die jeweiligen Messstellen (M1, M2, M3) verwendeten Zustandsvariablen zumindest näherungsweise mit den jeweiligen Zustandswerten übereinstimmt, und bei Fehlen eines solchen Zustands von der Auswerteeinrichtung (18) ein Fehlererkennungssignal erzeugt wird, das ein Vorliegen eines Fehlers in dem Energieversorgungsnetz (10, 40) angibt. Die Erfindung betrifft auch eine entsprechend ausgebildete Leitstelleneinrichtung (17).
    • 本发明涉及一种用于检测在供电网络的故障(10,40),状态值在多个测量点(M1,M2,M3),所述一个在各自的测量点(M1,M2,M3)本电状况测定 电源系统(10,40)指示被发送的状态值的控制站装置(17)包括评估装置(18),并且所述评估装置的状态值(18)本检测在供电网络(10,40)误差 可以使用。 重新训练这样的方法,使得在供电网络的错误,特别是可以在低的短路电流被检测到,具有高可靠性和选择性,所以建议状态估计是由评估装置进行(18),这是电能供应网络的模型描述 (10,40)操作时,基于状态变量的供电网络(10,40)的可能的电状态的描述是适用的,而状态估计中,检查是否能够通过该模型的描述中,电条件中的各测定点的术语来描述 (M1,M2,M3)中使用的状态变量的至少大约与各自的状态值一致,并且在由所述评估装置的情况下的这样的条件下生成(18)的错误检测信号,该信号的差错的存在 S上的供电网络(10,40)中表示。 本发明还涉及相应设计的控制站装置(17)。
    • 32. 发明申请
    • SYSTEMS, METHODS AND APPARATUS FOR PROTECTING POWER DISTRIBUTION FEEDER SYSTEMS
    • 用于保护配电馈线系统的系统,方法和设备
    • WO2013152172A3
    • 2013-11-28
    • PCT/US2013035245
    • 2013-04-04
    • SIEMENS INDUSTRY INCSMIT ANDRESTINSKIY ALEXANDR S
    • SMIT ANDRESTINSKIY ALEXANDR S
    • H02H7/26G01R31/08
    • H02H7/22G01R19/2513H02H7/261
    • A power distribution feeder system includes a plurality of power sources, a plurality of switching components coupled to the power sources by a plurality of line sections, and an IED coupled to each switching component and configured to monitor any line section coupled to the switching component, each IED containing protection logic configured to detect a jump in current on a faulted line section, communicate the jump in current to other IEDs coupled to the faulted line section, receive information from the other IEDs coupled to the faulted line section regarding any jump in current detected by the other IEDs, employ the received information from the other IEDs to confirm a fault in the faulted line section, and issue a trip command to isolate the faulted line section based on the current jump detected by the IED and current jump information received from other IEDs coupled to the line section.
    • 配电馈线系统包括多个电源,通过多个线路部分耦合到电源的多个开关部件以及耦合到每个开关部件并且被配置为监测耦合到开关部件的任何线路部分的IED, 每个IED包含配置成检测故障线路段上的电流跳变的保护逻辑,将电流跳转传送给耦合到故障线路段的其他IED,从耦合到故障线路段的其他IED接收关于当前跳变的信息 由其他IED检测到的信息使用从其他IED接收到的信息来确认故障线路部分中的故障,并且基于由IED检测到的当前跳转以及从IED接收到的当前跳转信息来发出跳闸命令以隔离故障线路部分 其他IED连接到线路部分。
    • 33. 发明申请
    • METHOD OF FAULT CLEARANCE
    • 故障清除方法
    • WO2013131782A1
    • 2013-09-12
    • PCT/EP2013/053834
    • 2013-02-26
    • ALSTOM TECHNOLOGY LTD
    • WHITEHOUSE, RobertBARKER, Carl, David
    • H02H7/26
    • H02H7/268H02H3/06H02H7/261H02H9/02
    • There is a method of fault clearance for a DC power grid (10), wherein the DC power grid (10) includes: a plurality of DC terminals (12a,12b,12c,12d); a plurality of DC power transmission media (14a,14b, 14c,14d) to interconnect the plurality of DC terminals (12a, 12b, 12c, 12d); and a plurality of DC circuit interruption device stations (18), each DC circuit interruption device station (18) being associated with a respective one of the plurality of DC power transmission media (14a,14b, 14c, 14d) and a respective one of the plurality of DC terminals (12a, 12b,12c, 12d), each DC circuit interruption device station (18) including a DC circuit interruption device (20) to selectively interrupt current flow in the associated DC power transmission medium (14a, 14b, 14c, 14d), the method comprising the steps of: (i) detecting one or more faults occurring in the plurality of DC power transmission media (14a, 14b, 14c,14d); (ii) after detecting the or each fault, opening all of the DC circuit interruption devices (20) to interrupt current flow in the plurality of DC power transmission media (14a,14b, 14c,14d); (iii) measuring electrical characteristics of each DC power transmission medium (14a, 14b, 14c,14d); (iv) identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is located, based on the measured electrical characteristics of the plurality of DC power transmission media (14a, 14b, 14c, 14d); and (v) after identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d) in which the or each fault is located, inhibiting closing of the or each DC circuit interruption device (20) that is associated with the or each faulty DC power transmission medium (14a,14b, 14c,14d), in which the or each fault is located, and closing the or each DC circuit interruption device (20) that is associated with the or each non-faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is not located.
    • 直流电网(10)具有故障清除方法,其中直流电网(10)包括:多个直流端子(12a,12b,12c,12d); 连接多个DC端子(12a,12b,12c,12d)的多个DC电力传输介质(14a,14b,14c,14d); 以及多个DC电路中断设备站(18),每个DC电路中断设备站(18)与所述多个DC电力传输介质(14a,14b,14c,14d)中的相应一个相关联,并且相应的一个 多个DC端子(12a,12b,12c,12d),每个DC电路中断装置站(18)包括DC电路中断装置(20),用于选择性地中断相关DC电力传输介质(14a,14b, 14c,14d),所述方法包括以下步骤:(i)检测在所述多个DC电力传输介质(14a,14b,14c,14d)中发生的一个或多个故障; (ii)在检测到或每个故障之后,打开所有DC电路中断装置(20)以中断多个DC电力传输介质(14a,14b,14c,14d)中的电流; (iii)测量每个直流电力传输介质(14a,14b,14c,14d)的电特性; (iv)基于所测量的多个DC电力传输介质(14a,14b,14c,14d)的电特性来识别其中所述或每个故障所位于的或每个故障的DC电力传输介质(14a,14b,14c,14d) 14c,14d); 以及(v)在识别出每个故障所在的或每个故障所在的故障的DC电力传输介质(14a,14b,14c,14d)之后,禁止与所述或每个故障相关联的每个DC电路中断装置(20)的关闭 或每个故障所在的每个故障的DC电力传输介质(14a,14b,14c,14d),并且关闭与每个非故障DC电力相关联的或每个DC电路中断装置(20) 传输介质(14a,14b,14c,14d),其中所述或每个故障不在其中。
    • 35. 发明申请
    • SYSTEM AND METHOD FOR PROTECTING AN ELECTRICAL POWER GRID
    • 用于保护电力网的系统和方法
    • WO2012155975A1
    • 2012-11-22
    • PCT/EP2011/058142
    • 2011-05-19
    • ABB TECHNOLOGY AGLUNDQVIST, Bertil
    • LUNDQVIST, Bertil
    • H02H3/28
    • H02H3/283H02H1/043H02H3/30H02H7/261
    • A differential protection system, equipment and a method for a power transfer system is provided for a power transfer system comprising a plurality of inputs power cables (4) for transfer of power from electric power generators (2), such as wind power generators (2), to an output cable (40). Each input and output power cable (4, 40) is provided with a respective circuit breaker (6, 60). The protection system comprises a plurality of protection equipment unit (5, 50) each being adapted to be arranged at a respective one of the input cables (4) or at the output cable (40), each protection equipment unit (5, 50) including a measuring unit (51) for measuring the current and voltage of the cable (4, 40), and including a control unit (53) being operatively connectable to the circuit breaker (6, 60) of the respective power cable (4, 40) for selectively tripping the circuit breaker (6, 60) when the protection system discovers a differential fault. The protection system comprises at least one charging current compensator (54) for compensating the differential protection for charging currents of the cables (4, 9, 11, 40) of the transfer system. The transfer system is arranged to transfer power from a varying number of the electric power generators (2) wherein the power cables (4, 9, 11, 40) being in use varies, and the protection system is adapted to adjust the compensation for these varying use of the transfer system.
    • 提供了用于电力传输系统的差动保护系统,设备和方法,用于电力传输系统,包括用于从诸如风力发电机(2)的发电机(2)传递电力的多个输入电力电缆(4) )到输出电缆(40)。 每个输入和输出电力电缆(4,40)设置有相应的断路器(6,60)。 保护系统包括多个保护设备单元(5,50),每个保护设备单元适于布置在相应的一个输入电缆(4)处或输出电缆(40)处,每个保护设备单元(5,50) 包括用于测量电缆(4,40)的电流和电压的测量单元(51),并且包括可操作地连接到相应的电力电缆(4,40)的断路器(6,60)的控制单元(53) 40),用于当保护系统发现差动故障时选择性地跳闸断路器(6,60)。 保护系统包括至少一个充电电流补偿器(54),用于补偿传送系统的电缆(4,9,11,40)的充电电流的差动保护。 传送系统被布置成从正在使用的电力电缆(4,9,11,40)变化的不同数量的发电机(2)传递电力,并且保护系统适于调整这些 不同使用的传输系统。
    • 39. 发明申请
    • METHOD AND PROTECTION DEVICE FOR A POWER NETWORK ACCOUNTING FOR ROUTE SWITCHING IN A TELECOMMUNICATION NETWORK
    • 用于在电信网络中进行路由切换的电力网络的方法和保护装置
    • WO2009012809A1
    • 2009-01-29
    • PCT/EP2007/057564
    • 2007-07-23
    • ABB TECHNOLOGY AGLUNDQVIST, BertilLEXELIUS, BjörnWIKSTRÖM, Kent
    • LUNDQVIST, BertilLEXELIUS, BjörnWIKSTRÖM, Kent
    • H02H7/26
    • H02H1/0061H02H7/261
    • A protection device for a power network performs a method to align measuring times of a first and a second measurement of an electric quantity, where the measurements are taken at different ends of a line of the power network and are transmitted with their measuring times via a telecommunication network. In the method, a send transmission time from the local (A) to the remote (B) end of the line and a receive transmission time from the remote (B) to the local end (A) of the line are determined based on time signals from internal clocks. After a global time reference to synchronize the internal clocks is lost, a clock drift is determined between the internal clocks. The measuring times of the first and the second measurements are aligned using the send and receive transmission times as well as the clock drift. A sudden change in the clock drift is determined in order to recognize a route switching in the telecommunication network and the clock drift is corrected.
    • 用于电力网络的保护装置执行一种将电量的第一和第二测量的测量时间对准的方法,其中在电力网络的线路的不同端部进行测量,并且经由 电信网络。 在该方法中,从线路的本地(A)到远端(B)端的发送传输时间和从远程(B)到线路的本端(A)的接收传输时间基于时间 来自内部时钟的信号。 在全局时钟参考同步后内部时钟丢失时,内部时钟之间确定时钟漂移。 使用发送和接收传输时间以及时钟漂移来对第一和第二测量的测量时间进行比较。 确定时钟漂移的突然变化以便识别电信网络中的路由切换并且校正时钟漂移。