专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明申请

WO1998029752A1 SYSTEM FOR LOCATING FAULTS AND ESTIMATING FAULT RESISTANCE IN DISTRIBUTION NETWORKS WITH TAPPED LOADS 审中-公开
标题翻译：用于定位故障的系统和用分段负载分配网络估计故障电阻
公开(公告)号：WO1998029752A1
公开(公告)日：1998-07-09
申请号：PCT/FI1997000839
申请日：1997-12-31
申请人： ABB TRANSMIT OY , NOVOSEL, Damir , HART, David , HU, Yi , MYLLYMÄKI, Jorma
发明人： ABB TRANSMIT OY
IPC分类号： G01R31/08
CPC分类号： G01R31/086
摘要： Both fault location and fault resistance of a fault are calculated by the present method and system. The method and system take into account the effects of fault resistance and load flow, thereby more accurately calculating fault resistance by taking into consideration the current flowing through the distribution network as well as the effect of fault impedance. A direct method calculates fault location and fault resistance directly while an iterative fashion method utilizes simpler calculations in an iterative fashion which first assumes that the phase angle of the current distribution factor Ds is zero, calculates an estimate of fault location utilizing this assumption, and then iteratively calculates a new value of the phase angle beta s of the current distribution factor Ds and fault location m until a sufficiently accurate determination of fault location is ascertained. Fault resistance is then calculated based upon the calculated fault location. The techniques are equally applicable to a three-phase system once fault type is identified.
摘要翻译：通过本方法和系统计算故障位置和故障故障电阻。该方法和系统考虑了故障电阻和负载流量的影响，从而通过考虑流经配电网络的电流以及故障阻抗的影响，更准确地计算故障电阻。直接方法直接计算故障位置和故障电阻，而迭代方法以迭代方式利用更简单的计算，首先假定电流分布因子Ds的相位角为零，使用该假设计算故障位置的估计，然后迭代地计算当前分布因子Ds和故障位置m的相位角βs的新值，直到确定故障位置的足够精确的确定。然后根据计算出的故障位置计算故障电阻。一旦发现故障类型，这些技术同样适用于三相系统。

82. 发明申请

WO1988005543A1 HIGH IMPEDANCE FAULT ANALYZER IN ELECTRIC POWER DISTRIBUTION 审中-公开
标题翻译：电力分配中的高阻抗故障分析仪
公开(公告)号：WO1988005543A1
公开(公告)日：1988-07-28
申请号：PCT/US1988000091
申请日：1988-01-15
申请人： JERRINGS, Donald, I. , LINDERS, John, R.
IPC分类号： G01R31/08
CPC分类号： G01R31/086 , G01R25/00 , H02H1/0015 , Y04S10/522
摘要： A system (Fig. 3) and method for detecting an abnormality in a network (10) for distributing or transmitting electric power at a predetermined fundamental frequency. The system produces a signal (40) representing the fundamental frequency and another signal (42) representing a harmonic current occuring in the network. The phasor relation between the fundamental voltage and harmonic current representing signal are compared (44). The system produces a signal (82) indicating the occurence of a high impedance fault in response to a predetermined change in the compared phasor relationship. Embodiments (Figs. 5 and 6) are disclosed utilizing expression of signals within the network in polar coordinates, as well as embodiments (Fig. 11) utilizing signals expressed in rectangular coordinates. Such embodiments include both circuitry for detecting zero crossing phenomena, as well as circuitry for producing representation of signal phasor products.
摘要翻译：一种用于检测用于以预定基频分配或发送电力的网络（10）中的异常的系统（图3）和方法。系统产生表示基频的信号（40）和表示在网络中发生的谐波电流的另一个信号（42）。比较基波电压和谐波电流代表信号之间的相量关系（44）。响应于比较的相量关系中的预定变化，系统产生指示高阻抗故障发生的信号（82）。利用在极坐标中的网络内的信号表达以及使用以直角坐标表示的信号的实施例（图11）来公开实施例（图5和图6）。这样的实施例包括用于检测过零现象的电路，以及用于产生信号相量产物的表示的电路。

83. 发明申请

WO1982004325A1 A FAULT ISOLATOR FOR ELECTRIC UTILITY DISTRIBUTION SYSTEMS 审中-公开
标题翻译：电力实用分配系统的故障隔离器
公开(公告)号：WO1982004325A1
公开(公告)日：1982-12-09
申请号：PCT/US1982000755
申请日：1982-06-01
申请人： WILSON DELANO D , HEDMAN DALE E
IPC分类号： G01R31/02
CPC分类号： G01R31/086 , G01R31/021 , Y04S10/522
摘要： A device (16) for locating faults on the lines (18) of electrical power distribution systems (10), including generally a variable impedance means (26) adapted for connection in series with an electrical power line (18), and means for switching (36) such variable impedance means (26) between a first low impedance value when an initial current I1 of predetermined level flows on the power line (18) for a predetermined period of time to enable detection of a fault condition, and a second high impedance value which limits the flow of current to a low level I2. A meter (46) or other indicating device provides a reading of the current I1 to determine if a fault condition exists. In this fashion, the fault locator device (16) limits both the magnitude and the time duration of the current when testing for a fault, so as not to adversely affect any system components.
摘要翻译：一种用于定位配电系统（10）的线路（18）上的故障的装置（16），其通常包括适于与电力线（18）串联连接的可变阻抗装置（26），以及用于切换的装置（36）当预定电平的初始电流I1在电力线（18）上流动预定时间段时，第一低阻抗值之间的这种可变阻抗装置（26）能够检测到故障状况，而第二高电平阻抗值将电流流量限制在低电平I2。仪表（46）或其他指示装置提供电流I1的读数以确定故障状况是否存在。以这种方式，故障定位装置（16）在测试故障时限制电流的大小和持续时间，从而不会对任何系统组件产生不利影响。

84. 发明申请

WO2019087101A1 SYSTEM AND METHOD FOR ANOMALY DETECTION IN AN ELECTRICAL NETWORK 审中-公开
公开(公告)号：WO2019087101A1
公开(公告)日：2019-05-09
申请号：PCT/IB2018/058544
申请日：2018-10-31
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： GOLNARI, Golshan , TAGHVAEEYAN, Saber , SCHUMACHER, Jennifer F.
IPC分类号： G01R31/08
CPC分类号： G01R31/086 , G01R31/088
摘要： The present subject matter enables early or real-time detection of anomalies in electric networks. In various applications, the system detects anomalies, such as electricity theft, electricity surge, etc. It solves the difficult-to-detect problems in an electrical network, where anomalies like electricity theft or electrical surge may not be found until it has raised numerous concerns or complaints, or has created a significant impact on infrastructure functionality, service quality, or cost. In addition, the present subject matter decreases the requirement for large number of sensors and provides more cost effective and scalable solutions. The present subject matter provides a method for determining where a detected anomaly is occurring within an electrical network. Variations of the present subject matter include anomaly identification systems for addressing anomalies in large networks. Various applications of the present subject matter provide guidance or effective placement of sensors in the electrical network.

85. 发明申请

WO2019053422A1 COVER ASSEMBLY 审中-公开
公开(公告)号：WO2019053422A1
公开(公告)日：2019-03-21
申请号：PCT/GB2018/052587
申请日：2018-09-12
申请人： CONNOR'S BUILDING & RESTORATION LTD
发明人： MARSHALL, Robert , ROSS, John-Paul , CONNOR, Terrence , GLORMAN, Ian
IPC分类号： E02D29/14 , H02G9/10 , G01R31/08 , H02G3/14
CPC分类号： H02G9/10 , E02D29/14 , G01R19/2513 , G01R31/086 , H02G3/14
摘要： A cover assembly for a link box (100), the assembly comprising: a removable planar lid (106); a sensor means; a signal generating means for generating a data signal, connected to the sensor means (170); a signal transmitting means (158) connected to the signal generating means (154) for wirelessly transmitting the data signal; and an electrical power source (152) for supplying electrical power to the signal generating means (154) and the signal transmitting means (158), wherein the assembly is configured to generate and transmit a signal in response to sensing of a defined condition by the sensor means (170).

86. 发明申请

WO2018153137A1 柔性直流配电网单极接地故障识别方法及装置、存储介质审中-公开
公开(公告)号：WO2018153137A1
公开(公告)日：2018-08-30
申请号：PCT/CN2017/114144
申请日：2017-11-30
申请人：许继集团有限公司 , 许继电气股份有限公司 , 国家电网公司
发明人：彭忠 , 张爱玲 , 李泰 , 赵静 , 荆雪记 , 胡永昌 , 陈朋 , 张艳浩 , 苏进国 , 李艳梅 , 肖龙 , 吴战锋 , 申帅华 , 杜少林 , 鲁庆华 , 孙攀磊 , 霍城辉 , 郑坤承 , 邵瑞博 , 周金萍
IPC分类号： G01R31/08 , H02H7/26
CPC分类号： G01R31/086 , H02H3/325
摘要：一种柔性直流配电网单极接地故障识别方法及装置、计算机存储介质，其中，所述方法包括：1）获取换流器出口正极直流母线的电流与对地电压，负极直流母线的电流与对地电压，与正极直流母线相连的直流线路的正极电流，及与负极直流线路相连的直流线路的负极电流（101）；2）当换流器出口正极直流母线的对地电压与负极直流母线的对地电压之和的绝对值大于设定的电压阈值，且换流器出口正极直流母线的电流与正极直流母线相连直流线路的正极电流之间、或者负极直流母线的电流与负极直流母线相连直流线路的负极电流之间的差动电流变化率大于设定的电流阈值时，判定相应的正极或负极直流母线发生单极接地故障（102）。

87. 发明申请

WO2017220465A1 PRÜFGERÄT UND VERFAHREN ZUM PRÜFEN EINES ÜBERWACHUNGSGERÄTS MIT WANDERWELLENERFASSUNG 审中-公开
标题翻译：用水平波检测来检查监视装置的测试装置和方法
公开(公告)号：WO2017220465A1
公开(公告)日：2017-12-28
申请号：PCT/EP2017/064887
申请日：2017-06-19
申请人： OMICRON ELECTRONICS GMBH
发明人： LAMPL, Heinz , HENSLER, Thomas
IPC分类号： G01R35/00 , G01R31/08 , G01R31/28 , H02H7/26
CPC分类号： G01R35/00 , G01R31/086 , G01R31/2827 , G01R31/2841 , H02H7/265
摘要： Um eine Prüfung eines Überwachungsgerätes mit Wanderwellenerfassung im Feld, so wie sie auch im realen Betrieb installiert sind, zu ermöglichen ist vorgesehen, dass im Prüfgerät (10) der zeitliche Verlauf einer niederfrequenten Fehlerspannung (U F (t)) und/oder der zeitliche Verlauf eines niederfrequenten Fehlerstromes (I F (t)) eines Fehlers (F) auf einem Stromleiter (3) und der Zeitpunkt (t A , t B ) des Eintreffens einer vom Fehlerort (F) ausgehenden Wanderwelle (W) an einem vorgegebenen Ort (x, L-x) des Stromleiters (3) berechnet werden und im Prüfgerät (10) ein Spannungsverstärker (14) zum Erzeugen des zeitlichen Verlaufs der niederfrequenten Fehlerspannung (U F (t)) und/oder ein Stromverstärker (15) zur Erzeugung des zeitlichen Verlaufs des niederfrequenten Fehlerstromes (I F (t)) von einer Steuereinheit (11) angesteuert werden, um an einem Spannungsausgang des Prüfgeräts (10) die niederfrequente Fehlerspannung (U F (t)) und/oder an einem Stromausgang des Prüfgeräts (10) den niederfrequenten Fehlerstrom (I F (t)) auszugeben und zum berechneten Zeitpunkt (t A , t B ) des Eintreffens der Wanderwelle (W) ein Spannungspulsgenerator (16) zum Erzeugen eines Spannungspulses und/oder ein Strompulsgenerator (17) zum Erzeugen eines Strompulses von der Steuereinheit (11) angesteuert werden, um die Fehlerspannung (U F (t)) mit einem Spannungspuls und/oder den Fehlerstrom (I F (t)) mit einem Stromimpuls zu überlagern.
摘要翻译：为了允许在现场测试具有行波检测的监控设备，因为它们也在实际操作中安装，提供了在前置放大器（10 ）低误差电压的时间特性（U <子>˚F（t））和/或低故障电流对时间特性（I _{˚F（t）的故障（F）的）的电流导体（3）和时间在预定位置（T <子>一，叔<子>乙）一个故障位置（F）传出行波（W）的到来的（X，Lx的）和用于产生低频误差电压（U F）的时间特性的电压放大器（14），并且在前置放大器（10）中，和/或通过控制单元（11）控制用于产生低频故障电流（I（t（t））的时间曲线的电流放大器（15），以便连接到Pr的电压输出（10）低频误差电压（U F）（t））和/或在前置放大器（10）的电流输出端处的低频故障电流（I F） /子>（t）的输出），和（对于行波（W）的电压脉冲发生器（16到来的所计算出的时间t <子>一，叔<子>乙）），用于产生电压脉冲，并 /或用于产生来自控制单元的电流脉冲的电流脉冲发生器（17）（11）被驱动为与误差电压（U <子>˚F（t））的（具有电压脉冲和/或故障电流I <子> F（t））与电流脉冲。}

88. 发明申请

WO2017194298A1 METHOD AND SYSTEM FOR DETECTING NOISE IN AN ELECTRICAL GRID 审中-公开
标题翻译：用于检测电网中的噪声的方法和系统
公开(公告)号：WO2017194298A1
公开(公告)日：2017-11-16
申请号：PCT/EP2017/059681
申请日：2017-04-24
申请人： FUNDACIÓN TECNALIA RESEARCH & INNOVATION
发明人： IBONE, García-borreguero Melero , BEÑAT, López Arantzamendi , MARTA, Castro Rentería , IBON, Arechalde Ugarteche
IPC分类号： G01R31/08 , H04B3/54
CPC分类号： G01R31/086 , H04B3/54 , H04B2203/5425
摘要： A method and system for detecting a source of noise in an electrical grid distributing network implementing Power Line Communications (PLC), said electrical grid distributing network comprising a plurality of meters (51, 61, 71) respectively connected to a plurality of end-user networks, wherein said source of noise to be detected is originated in a device belonging to one of said end-user networks, wherein each of said meters (51, 61, 71) is connected to at least one pair of cables corresponding to at least one phase of the 3 phases of the electrical grid (R, S, T), said at least one pair of cables comprising a first cable (R A , S A , T A , N A ) belonging to said distributing network and a second cable (R B , S B , T B , N B ) belonging to a corresponding end-user network. The method comprises: at each of said meters (51, 61, 71), disposing an element (30, 40) behaving as a resistive element within the frequency band of the PLC, and behaving as a non-resistive element at the frequency of the electrical grid (DC, 50-60 Hz), between said first cable belonging to the distributing network (R A , S A , T A ) and said second cable belonging to the end-user network (R B , S B , T B ); measuring the difference in electric potential between the two ends (A, B) of each element (30, 40) disposed between said first cable belonging to the distributing network (R A , S A , T A ) and said second cable belonging to the end-user network (R B , S B , T B ); from said at least one measurement, determining whether a device belonging to the end-user network and connected to said meter (51, 61, 71) is causing a noise disturbance or not.
摘要翻译：一种用于检测实现电力线通信（PLC）的电网分配网络中的噪声源的方法和系统，所述电网分配网络分别包括多个仪表（51,61,71）连接到多个终端用户网络，其中所述待检测噪声源是属于所述最终用户网络之一的设备中的，其中所述仪表（51,61,71）中的每一个至少连接到（R，S，T）的三相中的至少一相的一对电缆，所述至少一对电缆包括第一电缆（R，S，，其中属于所述分配网络的第一电缆（R B，S A，T A，N A，N A， B> B，B B，N B）中的每一个都属于相应的最终用户网络。该方法包括：在所述仪表（51,61,71）中的每一个处，在PLC的频带内设置用作电阻元件的元件（30,40），并且作为非电阻元件以频率在属于分布式网络（R A，S A，T A ），并且所述第二电缆属于最终用户网络（R B，S B，T B）;以及测量设置在属于分布网络的所述第一电缆（R A，S A，B）之间的每个元件（30,40）的两端（A，B）并且所述第二电缆属于最终用户网络（R B，S B，T C），并且所述第二电缆属于最终用户网络（R B，S B，T C）乙）; 从所述至少一个测量中确定属于最终用户网络并连接到所述仪表（51,61,71）的设备是否引起噪声干扰。

89. 发明申请

WO2017140691A1 APPARATUS FOR DETERMINATION OF A GROUND FAULT AND ASSOCIATED METHOD 审中-公开
标题翻译：确定接地故障的装置及相关方法
公开(公告)号：WO2017140691A1
公开(公告)日：2017-08-24
申请号：PCT/EP2017/053322
申请日：2017-02-14
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： WANG, Zheng , MA, Yongyue , HA, Hengxu
IPC分类号： H02H3/16 , G01R31/08 , H02H7/28 , H02H1/00
CPC分类号： H02H7/28 , G01R31/086 , H02H1/0092 , H02H3/165 , Y04S10/522
摘要： An apparatus (100) for determining a phase associated with a ground fault on a multiphase power distribution network, the apparatus configured to, based on determination of a spike fault, determine which of a plurality of RMS values of phase-to-phase fault currents is the minimum, said minimum RMS value indicative of a particular phase of the multi-phase power distribution network associated with the ground fault.
摘要翻译：一种用于确定与多相配电网络上的接地故障相关联的相的装置（100），所述装置被配置为基于确定尖峰故障来确定多个RMS值中的哪一个的相间故障电流是最小的，所述最小RMS值表示与接地故障相关的多相配电网络的特定相位。

90. 发明申请

WO2017134136A1 METHOD OF LOCATING A FAULT IN A POWER TRANSMISSION SCHEME 审中-公开
标题翻译：在电力传输方案中定位故障的方法
公开(公告)号：WO2017134136A1
公开(公告)日：2017-08-10
申请号：PCT/EP2017/052205
申请日：2017-02-02
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： HA, Hengxu , SUBRAMANIAN, Sankara
IPC分类号： G01R31/08 , H02H7/26
CPC分类号： G01R31/088 , G01R31/086 , H02H7/263 , Y04S10/522
摘要： There is provided a method of locating a fault in a power transmission scheme. The power transmission scheme includes a plurality of power transmission sections and a plurality of connection points (J 0 -J 5 ), the plurality of connection points includes a first end connection point (J 0 ), a second end connection point (J 5 )and at least one intermediate connection point (J 1 -J 4 ), and each of the plurality of power transmission sections is arranged to interconnect a respective two of the plurality of connection points such that the plurality of power transmission sections are connected successively between the first and second end connection points and such that the or each intermediate connection point interconnects (J 1 -J 4 ) a or a respective neighbouring pair of the power transmission sections. The method comprises the steps of: (i) measuring first and second end voltage phasors at the first and second end connection points (J 0 , J 5 ) respectively; (ii) obtaining a first set of voltage phasors, wherein the first set of voltage phasors includes the measured first end voltage phasor and further includes respective voltage phasors at each of the second and intermediate connection points that are determined based on the measured first end voltage phasor; (iii) obtaining a second set of voltage phasors, wherein the second set of voltage phasors includes the measured second end voltage phasor and further includes respective voltage phasors at each of the first and intermediate connection points that are determined based on the measured second end voltage phasor; (iv) comparing the first and second sets of voltage phasors to identify the power transmission section or connection point corresponding to the location of the fault, wherein each voltage phasor of the first set of voltage phasors is compared to the respective voltage phasor of the second set of voltage phasors that corresponds to the same connection point.
摘要翻译：提供了一种在电力传输方案中定位故障的方法。电力传输方案包括多个电力传输部分和多个连接点（J0-J5），多个连接点包括第一端连接点（J 0），第二端连接点（J 5）和至少一个中间连接点（J 1，J 2，...， 4），并且多个动力传递部分中的每一个被布置成互连多个连接点中的相应两个，使得多个动力传递部分连续地连接在第一和第二端部连接点之间，并且这样该中间连接点或每个中间连接点互连（J1-J4）a或相应的相邻对的电力传输部分。该方法包括以下步骤：（i）分别在第一和第二端连接点（J0，J5）测量第一和第二端电压相量; （ii）获得第一组电压相量，其中所述第一组电压相量包括所测量的第一端电压相量，并且还包括在基于所测量的第一端电压确定的第二和中间连接点中的每一个处的相应电压相量相量; （iii）获得第二组电压相量，其中所述第二组电压相量包括所述测量的第二端电压相量，并且还包括在基于所测量的第二端电压确定的第一和中间连接点中的每一个处的相应电压相量相量; （iv）比较所述第一和第二组电压相量以识别对应于所述故障位置的所述电力传输部分或连接点，其中将所述第一组电压相量的每个电压相量与所述第二组电压相量一组电压相量对应相同的连接点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式