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1. 发明申请

WO2010148570A1 METHOD FOR IDENTIFYING TYPE OF FAULT ON POWER LINE 审中-公开
标题翻译：识别电源线故障类型的方法
公开(公告)号：WO2010148570A1
公开(公告)日：2010-12-29
申请号：PCT/CN2009/072472
申请日：2009-06-26
申请人： ABB RESEARCH LTD. , LI, Yongli , LI, Botong , CHEN, Li , SU, Bin
发明人： LI, Yongli , LI, Botong , CHEN, Li , SU, Bin
IPC分类号： G01R31/08 , H02H3/26
CPC分类号： H02H7/267 , G01R31/085 , H02H1/00
摘要： A method for identifying a type of a fault on a power line comprises a step of calculating a fault point voltage at a fault point based on the terminal voltages and the fault location of the power line, a step of determining the fault point voltage corresponding to a maximum transition resistance as a setting value, a step of comparing the fault point voltage at the fault point with the setting value, and a step of identifying the type of the fault as a permanent type or a transient type based on the result of the comparison.
摘要翻译：一种用于识别电力线上的故障类型的方法包括：基于终端电压和电力线的故障位置来计算故障点处的故障点电压的步骤，确定与电力线对应的故障点电压的步骤作为设定值的最大过渡电阻，将所述故障点处的故障点电压与所述设定值进行比较的步骤，以及基于所述设定值的结果，将所述故障的类型识别为永久型或瞬时型的步骤比较。

2. 发明申请

WO2010088788A1 METHOD FOR DETECTING NETWORK ASYMMETRICAL STATUS AND ASYMMETRICAL COMMUNICATION CHANNELS FOR POWER SYSTEM 审中-公开
标题翻译：用于检测网络非对称状态的方法和用于电力系统的非对称通信信道
公开(公告)号：WO2010088788A1
公开(公告)日：2010-08-12
申请号：PCT/CN2009/000137
申请日：2009-02-09
申请人： ABB RESEARCH LTD , LI, Youyi , SU, Bin
发明人： LI, Youyi , SU, Bin
IPC分类号： H04L12/42
CPC分类号： H04L43/0852 , H04J3/0638 , H04J3/085 , H04J2203/0042 , H04J2203/006 , H04J2203/0062 , H04L12/437
摘要： The present invention provides a new synchronization method named Multi-Node Echo Method (MNEM), which settles the problem of clock/data synchronization with asymmetrical channels. In MNEM, the echo messages are relayed among multi-node loop both by clockwise and anti-clockwise. Based on Multi-Node Echo Method, the invention further provides a method to detect symmetrical status of a communication network, a method to detect asymmetrical status of any channel in a communication network, and a method to calculate the sending and receiving delay values of any channel in a communication network, even when the channel is asymmetrical.
摘要翻译：本发明提供了一种称为多节点回波方法（MNEM）的新的同步方法，其解决了具有不对称信道的时钟/数据同步的问题。在MNEM中，回波消息在多节点循环中通过顺时针和逆时针中继。基于多节点回波方法，本发明还提供了一种检测通信网络的对称状态的方法，检测通信网络中任何信道的不对称状态的方法，以及计算任何信道的发送和接收延迟值的方法通道在通信网络中，即使通道不对称。

3. 发明申请

WO2011060578A1 METHOD AND APPARATUS FOR GROUND DISTANCE PROTECTION 审中-公开
标题翻译：地面距离保护方法与装置
公开(公告)号：WO2011060578A1
公开(公告)日：2011-05-26
申请号：PCT/CN2009/075004
申请日：2009-11-18
申请人： ABB RESEARCH LTD. , SU, Bin , LI, Youyi , YANG, Ying
发明人： SU, Bin , LI, Youyi , YANG, Ying
IPC分类号： H02H7/26
CPC分类号： H02H3/402
摘要： A ground distance protection method comprises the following steps: measuring a local source impedance based on the fault component at both ends (M, N) of a transmission line when a ground fault has occurred; sending the measured local source impedance from a first end to a second end; adjusting a protection criterion at the second end based on the measured local source impedance; and judging the ground fault as an internal fault or an external fault according to the adjusted protection criterion. The ground distance protection can suppress over-reaching or under-reaching trip during a protection operation.
摘要翻译：地面距离保护方法包括以下步骤：当发生接地故障时，基于传输线两端（M，N）的故障分量测量局部源阻抗; 将测量的本地源阻抗从第一端发送到第二端; 基于测量的本地源阻抗来调整第二端的保护标准; 根据调整后的保护标准判断接地故障为内部故障或外部故障。地面距离保护可以在保护操作期间抑制过度或不足的行程。

4. 发明申请

WO2010022559A1 METHOD AND APPARATUS FOR FAULT IDENTIFICATION IN A POWER TRANSMISSION LINE 审中-公开
标题翻译：电力传输线故障识别方法与装置
公开(公告)号：WO2010022559A1
公开(公告)日：2010-03-04
申请号：PCT/CN2008/072191
申请日：2008-08-29
申请人： ABB RESEARCH LTD , YANG, Ying , SU, Bin , JING, Lei , LIU, Qianjin
发明人： YANG, Ying , SU, Bin , JING, Lei , LIU, Qianjin
IPC分类号： H02H7/26 , H02H3/06 , G01R31/00
CPC分类号： H02H3/066 , G01R31/085
摘要： A method and an apparatus identify fault in a transmission line. The method includes measuring at an end of the transmission line when the transmission line has a fault to obtain a measured signal g(t), comparing the measured signal g(t) with a predefined standard signal f(t) which having beat frequency characteristic, and identifying that the fault is a transient fault if the measured signal g(t) matches the predefined standard signal f(t) according to a result of the comparison, or the fault is a permanent fault if the measured signal g(t) does not match the predefined standard signal f(t) according to the result of the comparison.
摘要翻译：一种方法和装置识别传输线路中的故障。该方法包括：当传输线路有故障以获得测量信号g（t）时，测量传输线路的末端，将测量信号g（t）与具有拍频特性的预定标准信号f（t）进行比较，并且如果测量信号g（t）根据比较结果与预定义的标准信号f（t）匹配，则识别故障是瞬态故障，或者如果测量信号g（t）是故障，则故障是永久故障根据比较结果不符合预定标准信号f（t）。

5. 发明申请

WO2013106985A1 METHOD FOR IDENTIFYING FAULT DIRECTION WITHOUT VOLTAGE MEASUREMENT INFORMATION AND DIRECTIONAL ELEMENT THEREOF 审中-公开
标题翻译：无电压测量信息识别故障方向的方法及其方向元件
公开(公告)号：WO2013106985A1
公开(公告)日：2013-07-25
申请号：PCT/CN2012/070424
申请日：2012-01-16
申请人： ABB RESEARCH LTD. , LI, Youyi , SU, Bin
发明人： LI, Youyi , SU, Bin
IPC分类号： G01R31/08 , H02H3/38
CPC分类号： H02H7/28 , G01R31/086 , H02H3/302 , H02H7/261
摘要： The present invention discloses a method for identifying the fault direction without voltage measurement information and directional element thereof, which comprises: as to any one of protections, measuring the current value of the local line; calculating the fault component current based on said current value, and further calculating the phase angle of said fault component current; obtaining the phase angles of fault component currents from at least other two lines which are connected to the same busbar with said local line; comparing the phase angle of fault component current of said local line with that of the other lines; and identifying the fault direction based on the result of the comparison. The proposed methods and directional element without voltage measurement information can be used in both distribution and transmission systems. It shall be noted that the proposed solutions can also be used for any applications which need fault direction without available voltage information.
摘要翻译：本发明公开了一种用于识别无电压测量信息及其方向元件的故障方向的方法，包括：对任何一种保护，测量局部线路的当前值; 基于所述当前值计算故障分量电流，并进一步计算所述故障分量电流的相位角; 从与所述局部线连接到同一母线的至少其他两条线获得故障分量电流的相位角; 将所述局部线路的故障分量电流的相位角与其他线路的相位角进行比较; 并根据比较结果识别故障方向。所提出的无电压测量信息的方法和方向元件可用于分布和传输系统。应当注意，所提出的解决方案还可以用于任何需要故障方向而不具有可用电压信息的应用。

6. 发明申请

WO2011079460A1 METHOD AND APPARATUS FOR DETECTING COMMUNICATION CHANNEL DELAY ASYMMETRY 审中-公开
标题翻译：用于检测通信信道延迟不对称的方法和装置
公开(公告)号：WO2011079460A1
公开(公告)日：2011-07-07
申请号：PCT/CN2009/076347
申请日：2009-12-31
申请人： ABB RESEARCH LTD. , SU, Bin , LI, Youyi , EINARSSON, Torbjorn
发明人： SU, Bin , LI, Youyi , EINARSSON, Torbjorn
IPC分类号： H04L7/00
CPC分类号： H04J3/0682 , H02H1/0061 , H02H3/30 , H04J3/065 , H04J3/0658
摘要： The invention provides a method and apparatus for detecting communication channel delay asymmetry between transmission line protection devices. The method comprises: calculating, repeatedly, clock disparity between clocks of the protection devices and communication delays at different paths of the communication channel; comparing the latest calculated clock disparity and communication delays with previously calculated clock disparities and communication delays, respectively; determining a channel switching has happened if a change of the calculated clock disparity exceeds a first threshold, or a change of the calculated communication delays for any path exceeds a second threshold; and determining the channel delays as asymmetrical if a difference between the calculated communication delays of the different paths after the channel switching exceeds a third threshold.
摘要翻译：本发明提供一种用于检测传输线路保护装置之间的通信信道延迟不对称的方法和装置。该方法包括：重复地计算保护装置的时钟之间的时钟差异和在通信信道的不同路径处的通信延迟; 将最新计算的时钟差异和通信延迟与先前计算的时钟差异和通信延迟进行比较; 如果所计算的时钟视差的改变超过第一阈值或者所计算的任何路径的通信延迟的改变超过第二阈值，则确定频道切换已经发生; 以及如果在频道切换之后所计算的不同路径的通信延迟之间的差超过第三阈值，则将所述信道延迟确定为不对称。

7. 发明申请

WO2010034149A1 METHOD AND DEVICE FOR SUPERVISING SECONDARY CIRCUIT OF INSTRUMENT TRANSFORMER IN POWER SYSTEM 审中-公开
标题翻译：用于监控电力系统中仪器变压器二次电路的方法和装置
公开(公告)号：WO2010034149A1
公开(公告)日：2010-04-01
申请号：PCT/CN2008/072480
申请日：2008-09-24
申请人： ABB RESEARCH LTD , SU, Bin , FAN, Jianzhong , JING, Lei , LIU, Qianjin , WANG, Jianping , YANG, Ying
发明人： SU, Bin , FAN, Jianzhong , JING, Lei , LIU, Qianjin , WANG, Jianping , YANG, Ying
IPC分类号： G01R31/06 , G01R31/00
CPC分类号： H02H7/261 , G01R31/027 , H02H3/05 , H02H3/40
摘要： A method for supervising a secondary circuit of an instrument transformer in a power system, the instrument transformer is connected to a power system, the method comprises: detecting, by a protection Intelligent Electronic Device, protection IED, which is connected to the secondary circuit of the instrument transformer and protects the power system component, disturbances in a signal from the instrument transformer; and determining whether a failure occurs in the secondary circuit of the instrument transformer, according to both a disturbance detection result from the protection IED and another disturbance detection result from at least one of other protection IEDs, the other protection IEDs comprising protection IEDs which are connected to other secondary circuits of the instrument transformer or to secondary circuits of another instrument transformer connected to the power system component, and protection IEDs which are connected to other instrument transformers connected to other power system components connected to the same busbar as the power component is connected to. A protection Intelligent Electronic Device, protection IED, for supervising a secondary circuit of an instrument transformer in a power system.
摘要翻译：一种监控电力系统中仪表变压器二次回路的方法，仪表变压器与电力系统连接，该方法包括：通过保护智能电子设备检测保护IED，该保护IED连接到二次回路仪表变压器保护电力系统部件，仪表变压器信号的干扰; 以及根据来自保护IED的干扰检测结果和来自其它保护IED中的至少一个的另一个干扰检测结果，确定在仪表变压器的次级电路中是否发生故障，其他保护IED包括被连接的保护IED 到仪器变压器的其他二次回路或连接到电力系统组件的另一台仪表变压器的二次回路，以及与连接到连接到与功率部件相连的同一母线上的其他电力系统组件的其他仪表变压器连接的保护IED 至。保护智能电子设备，保护IED，用于监控电力系统中仪表变压器的二次回路。

8. 发明申请

WO2010003282A1 FAST POWER SWING UNBLOCKING METHOD AND APPARATUS FOR DISTANCE PROTECTION IN POWER SYSTEM 审中-公开
标题翻译：电力系统中远距离保护的快速断电方法及装置
公开(公告)号：WO2010003282A1
公开(公告)日：2010-01-14
申请号：PCT/CN2008/071565
申请日：2008-07-07
申请人： ABB RESEARCH LTD. , SU, Bin , JING, Lei , LIU, Qianjin
发明人： SU, Bin , JING, Lei , LIU, Qianjin
IPC分类号： H02H7/26 , G01R31/08
CPC分类号： H02H3/40 , G01R31/085 , G01R31/088
摘要： A fast power swing unblocking method and the corresponding apparatus for a distance protection in a power system are able to ensure fast phase-segregated tripping of distance protection for faults during a power swing (3 -phase or 2-phase swing). The power swing unblocking method comprises calculating changing rates of impedances for all operating loops including phase-phase loops and phase-ground loops in the power system and identifying a fault loop based on the calculated changing rates. If a fault loop is identified, a blocked distance zone in the fault loop is unblocked and the corresponding protective relays can be excited.
摘要翻译：电力系统中的快速功率摆幅解锁方法和距离保护的相应装置能够确保在功率摆幅（3相或2相摆幅）期间对于故障进行距离保护的快速相分离跳闸。功率摆幅解锁方法包括计算电力系统中所有运行回路（包括相位回路和相 - 接地回路）的阻抗变化率，并根据计算出的变化率识别故障回路。如果识别故障循环，故障环路中的阻塞距离区域被解除阻塞，并且相应的保护继电器可以被激励。

9. 发明申请

WO2010003281A1 METHOD AND SYSTEM FOR REARRANGING SOUND CONDUCTORS IN PARALLEL LINES IN POWER TRANSMISSION 审中-公开
标题翻译：用于在并联线路中重新连接发射机的方法和系统
公开(公告)号：WO2010003281A1
公开(公告)日：2010-01-14
申请号：PCT/CN2008/071564
申请日：2008-07-07
申请人： ABB RESEARCH LTD. , FAN, Jianzhong , SU, Bin , JING, Lei , LIU, Qianjin , YANG, Ying
发明人： FAN, Jianzhong , SU, Bin , JING, Lei , LIU, Qianjin , YANG, Ying
IPC分类号： H02H3/06
CPC分类号： H02H7/267
摘要： A method and a system for rearranging sound conductors included in parallel lines in power transmission are provided. The parallel lines include at least a first line (L1) and a second line (L2) each of which includes N conductors (1A, 1B, and 1C; or, 2A, 2B, and 2C), and N is an integer greater than or equal to 3. Any N sound conductors (1B, 1C, 2C) among the 2N conductors (1A, 1B, and 1C; 2A, 2B, and 2C) are selected to form a reconstructed line so that power transmission can be resumed.
摘要翻译：提供了一种用于重新布置电力传输中并联线中的声导体的方法和系统。平行线至少包括第一线（L1）和第二线（L2），每条线包括N根导体（1A，1B和1C;或，2A，2B和2C），N是大于或等于3.选择2N个导体（1A，1B和1C; 2A，2B和2C）中的任何N个导体（1B，1C，2C）以形成重构线，使得可以恢复电力传输。

10. 发明申请

WO2012061978A1 SYNCHRONIZATION METHOD FOR CURRENT DIFFERENTIAL PROTECTION 审中-公开
标题翻译：电流差动保护同步方法
公开(公告)号：WO2012061978A1
公开(公告)日：2012-05-18
申请号：PCT/CN2010/078562
申请日：2010-11-09
申请人： ABB RESEARCH LTD. , LI, Youyi , SU, Bin , YANG, Ying , EINARSSON, Torbjorn , GAJIC, Zoran
发明人： LI, Youyi , SU, Bin , YANG, Ying , EINARSSON, Torbjorn , GAJIC, Zoran
IPC分类号： H02H7/26
CPC分类号： H03L7/08 , H02H3/283 , H02H3/30 , H02H7/263 , H04J3/0667
摘要： The present invention provides a synchronization method for current differential protection comprises the following steps: selecting a point on the transmission line protected by the current differential protection; measuring the current and the voltage of each of the terminals of said transmission line; calculating the compensating voltage at the selected point respectively according to the measured current and the voltage of the each terminal; detecting and calculating the synchronization error by comparing all the compensating voltages. The current and voltage of each of the terminals are measured before a fault or after a fault, and can be measured in vectors or sampling values. The current and voltage of each of the terminals are phase quantities or sequence quantities. The point can be selected from any points of transmission line; preferably the middle or the ends of the transmission line or the T connected point of the multi-terminal transmission lines. The synchronization method further comprises a step of distinguishing the calculated synchronization error caused by a serious line parameter change or an asymmetrical channel switching by calculating the changing speed of the phase angle difference or the wave shift of said compensating voltage.
摘要翻译：本发明提供一种用于电流差动保护的同步方法，包括以下步骤：选择由电流差动保护保护的传输线路上的点; 测量所述传输线的每个端子的电流和电压; 根据测量的电流和每个端子的电压分别计算所选点处的补偿电压; 通过比较所有补偿电压来检测和计算同步误差。每个端子的电流和电压在故障之前或故障之后测量，并且可以在矢量或采样值中测量。每个端子的电流和电压是相位量或序列量。该点可以从传输线的任何点选择; 优选地，传输线的中间或端部或多端子传输线的T连接点。同步方法还包括通过计算相位角差或所述补偿电压的波移的变化速度来区分由严重线路参数变化或不对称通道切换引起的计算出的同步误差的步骤。

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