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1. 发明授权

US08791730B2 Synchronization method for current differential protection 有权
标题翻译：电流差动保护同步方法
公开(公告)号：US08791730B2
公开(公告)日：2014-07-29
申请号：US13876320
申请日：2010-11-09
申请人： Youyi Li , Bin Su , Ying Yang , Torbjorn Einarsson , Zoran Gajic
发明人： Youyi Li , Bin Su , Ying Yang , Torbjorn Einarsson , Zoran Gajic
IPC分类号： H03L7/00
CPC分类号： H03L7/08 , H02H3/283 , H02H3/30 , H02H7/263 , H04J3/0667
摘要： A synchronization method for current differential protection comprises: 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.
摘要翻译：电流差动保护的同步方法包括：选择由电流差动保护保护的传输线上的点; 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。

2. 发明申请

US20130181755A1 SYNCHRONIZATION METHOD FOR CURRENT DIFFERENTIAL PROTECTION 有权
标题翻译：电流差动保护同步方法
公开(公告)号：US20130181755A1
公开(公告)日：2013-07-18
申请号：US13876320
申请日：2010-11-09
申请人： Youyi Li , Bin Su , Ying Yang , Torbjorn Einarsson , Zoran Gajic
发明人： Youyi Li , Bin Su , Ying Yang , Torbjorn Einarsson , Zoran Gajic
IPC分类号： H03L7/08
CPC分类号： H03L7/08 , H02H3/283 , H02H3/30 , H02H7/263 , H04J3/0667
摘要： A synchronization method for current differential protection comprises: 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.
摘要翻译：电流差动保护的同步方法包括：选择由电流差动保护保护的传输线上的点; 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。

3. 发明申请

US20120206149A1 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：US20120206149A1
公开(公告)日：2012-08-16
申请号：US13503711
申请日：2009-11-18
申请人： Bin Su , Youyi Li , Ying Yang
发明人： Bin Su , Youyi Li , Ying Yang
IPC分类号： G01R31/12
CPC分类号： H02H3/402
摘要： The invention relates to a ground distance protection method, which comprises: measure local source impedance based on fault component at both ends (M, N) of the transmission line in the case of a ground distance fault has occurred. Send the measured local source impedance from a first end to a second end. Adjust a protection criterion at the second end based on the measured impedance. And, judge the ground fault as an internal fault or an external fault according to the adjusted protection criterion. The invention also relates to a controller, a piece of software and an apparatus for implementing the same function.
摘要翻译：本发明涉及一种地面距离保护方法，其包括：在发生地面距离故障的情况下，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。根据测量的阻抗调整第二端的保护标准。并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。本发明还涉及一种用于实现相同功能的控制器，软件和装置。

4. 发明授权

US10416221B2 Voltage based method for fault identification in a transmission line apparatus thereof 有权
公开(公告)号：US10416221B2
公开(公告)日：2019-09-17
申请号：US13982297
申请日：2011-03-17
申请人： Ying Yang , Youyi Li , G. Pradeep
发明人： Ying Yang , Youyi Li , G. Pradeep
IPC分类号： G01R31/00 , G01R31/02 , G01R31/08 , G01R27/00 , H02H3/06 , H02H7/26 , H02H3/08 , H02H3/40 , G06F19/00 , G01D21/00 , G06F17/40
摘要： The present invention provides a method for current for fault identification in a transmission line and an apparatus thereof. The method comprises the following steps: measuring the real-time values of the currents and the voltages of the other unbroken healthy phase conductors when a single-phase fault occurs; calculating the inductive voltage and the capacitive coupling voltage according to the measured currents and voltages respectively; comparing the capacitive coupling voltage with the inductive voltage multiplied by a factor, in which the multiplication result is used as a self-adjusted threshold based on the real time load condition of the transmission line; and identifying the fault type based on the maximum of the capacitive coupling voltage and the multiplication.

5. 发明申请

US20130317768A1 VOLTAGE BASED METHOD FOR FAULT IDENTIFICATION IN A TRANSMISSION LINE AND APPARATUS THEREOF 审中-公开
标题翻译：传输线故障识别的基于电压的方法及其设备
公开(公告)号：US20130317768A1
公开(公告)日：2013-11-28
申请号：US13982297
申请日：2011-03-17
申请人： Ying Yang , Youyi Li , G. Pradeep
发明人： Ying Yang , Youyi Li , G. Pradeep
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01D21/00 , G01R27/00 , G01R31/021 , G01R31/08 , G06F17/40 , G06F19/00 , H02H3/06 , H02H3/083 , H02H3/402 , H02H3/405 , H02H7/26
摘要： The present invention provides a method for current for fault identification in a transmission line and an apparatus thereof. The method comprises the following steps: measuring the real-time values of the currents and the voltages of the other unbroken healthy phase conductors when a single-phase fault occurs; calculating the inductive voltage and the capacitive coupling voltage according to the measured currents and voltages respectively; comparing the capacitive coupling voltage with the inductive voltage multiplied by a factor, in which the multiplication result is used as a self-adjusted threshold based on the real time load condition of the transmission line; and identifying the fault type based on the maximum of the capacitive coupling voltage and the multiplication.
摘要翻译：本发明提供一种用于传输线路中的故障识别电流的方法及其装置。该方法包括以下步骤：当发生单相故障时，测量其他不间断健康相导体的电流和电压的实时值; 根据测量的电流和电压分别计算感应电压和电容耦合电压; 将电容耦合电压与乘以因子的感应电压进行比较，其中乘法结果用作基于传输线的实时负载条件的自调整阈值; 并基于电容耦合电压和乘法的最大值来识别故障类型。

6. 发明授权

US08649131B2 Method and device for supervising secondary circuit of instrument transformer in power system 有权
标题翻译：电力系统仪表互感器二次回路监控方法及装置
公开(公告)号：US08649131B2
公开(公告)日：2014-02-11
申请号：US13119869
申请日：2008-09-24
申请人： Bin Su , Jianzhong Fan , Lei Jing , Qianjin Liu , Jianping Wang , Ying Yang
发明人： Bin Su , Jianzhong Fan , Lei Jing , Qianjin Liu , Jianping Wang , Ying Yang
IPC分类号： H02H7/04
CPC分类号： H02H7/261 , G01R31/027 , H02H3/05 , H02H3/40
摘要： A method and a protection IED for supervising a secondary circuit of an instrument transformer in a power system are disclosed. The instrument transformer is connected to a power system component. The method includes: detecting, by a 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 include 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 system component is connected to. The secondary circuit supervision solutions provide more reliable and sensitive performance and need very small amount of information to be collected.
摘要翻译：公开了一种用于监视电力系统中的仪表变压器的次级电路的方法和保护IED。仪表变压器连接到电力系统组件。该方法包括：通过连接到仪表变压器次级电路并保护电力系统部件的保护装置IED检测来自仪表变压器的信号的干扰; 以及根据来自保护IED的干扰检测结果和来自其他保护IED中的至少一个的另一干扰检测结果来确定仪器变压器的次级电路中是否发生故障。其他保护IED包括连接到仪表变压器的其他二次电路的保护IED或连接到电力系统组件的另一台仪表变压器的二次电路，以及连接到连接到连接到其他电力系统组件的其他仪表变压器的保护IED 到与电力系统组件相连的同一母线。次级电路监控解决方案提供更可靠和更灵敏的性能，需要非常少量的信息进行采集。

7. 发明申请

US20110188159A1 METHOD AND DEVICE FOR SUPERVISING SECONDARY CIRCUIT OF INSTRUMENT TRANSFORMER IN POWER SYSTEM 有权
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：US20110188159A1
公开(公告)日：2011-08-04
申请号：US13119869
申请日：2008-09-24
申请人： Bin Su , Jianzhong Fan , Lei Jing , Qianjin Liu , Jianping Wang , Ying Yang
发明人： Bin Su , Jianzhong Fan , Lei Jing , Qianjin Liu , Jianping Wang , Ying Yang
IPC分类号： H02H7/04
CPC分类号： H02H7/261 , G01R31/027 , H02H3/05 , H02H3/40
摘要： A method and a protection IED for supervising a secondary circuit of an instrument transformer in a power system are disclosed. The instrument transformer is connected to a power system component. The method includes: detecting, by a 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 include 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 system component is connected to. The secondary circuit supervision solutions provide more reliable and sensitive performance and need very small amount of information to be collected.
摘要翻译：公开了一种用于监视电力系统中的仪表变压器的次级电路的方法和保护IED。仪表变压器连接到电力系统组件。该方法包括：通过连接到仪表变压器次级电路并保护电力系统部件的保护装置IED检测来自仪表变压器的信号的干扰; 以及根据来自保护IED的干扰检测结果和来自其他保护IED中的至少一个的另一干扰检测结果来确定仪器变压器的次级电路中是否发生故障。其他保护IED包括连接到仪表变压器的其他二次电路的保护IED或连接到电力系统组件的另一台仪表变压器的二次电路，以及连接到连接到连接到其他电力系统组件的其他仪表变压器的保护IED 到与电力系统组件相连的同一母线。次级电路监控解决方案提供更可靠和更灵敏的性能，需要非常少量的信息进行采集。

8. 发明申请

US20110163614A1 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：US20110163614A1
公开(公告)日：2011-07-07
申请号：US13002674
申请日：2008-07-07
申请人： Jianzhong Fan , Bin Su , Lei Jing , Qianjin Liu , Ying Yang
发明人： Jianzhong Fan , Bin Su , Lei Jing , Qianjin Liu , Ying Yang
IPC分类号： H02J4/00
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), N is an integer number greater than or equal to 3. The method includes: selecting any N sound conductors (1B, 1C, 2C) which are not included in one line, among the 2N conductors (1A, 1B, and 1C; 2A, 2B, and 2C) included in the two lines (L1, L2); connecting each of one or more unselected conductors (1A) included in the first line (L1) to a corresponding one of one or more selected sound conductors (2C) included in the second line (L2) while keeping the second line (L2) tripped, so that a reconstructed line is formed by using the N selected sound conductors (1B, 1C, 2C) to resume power transmission of the first line (L1).
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。平行线包括至少第一线（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是大于或者等于3.该方法包括：在包括在其中的2N个导体（1A，1B和1C; 2A，2B和2C）中选择不包括在一行中的N个声音导体（1B，1C，2C）两条线（L1，L2）; 将包括在第一线路（L1）中的一个或多个未选择的导体（1A）中的每一个连接到包括在第二线路（L2）中的一个或多个选定声音导体（2C）中的对应的一个，同时保持第二线路（L2）跳闸，使得通过使用N个选择的声导体（1B，1C，2C）来形成重建线路，以恢复第一线路（L1）的电力传输。

9. 发明授权

US08680873B2 Method and apparatus for fault identification in a power tansmission line 有权
标题翻译：断电线路故障识别方法及装置
公开(公告)号：US08680873B2
公开(公告)日：2014-03-25
申请号：US13060071
申请日：2008-08-29
申请人： Ying Yang , Bin Su , Lei Jing , Qianjin Liu
发明人： Ying Yang , Bin Su , Lei Jing , Qianjin Liu
IPC分类号： G01R31/02
CPC分类号： H02H3/066 , G01R31/085
摘要： A method and apparatus for fault identification in a transmission line are provided. The method may include measuring at an end of the transmission line when the transmission line has a fault to obtain a measured signal, comparing the measured signal with a predefined standard signal, the predefined standard signal having beat frequency characteristic; and identifying that the fault is a transient fault if the measured signal matches the predefined standard signal according to a result of the comparison, or the fault is a permanent fault if the measured signal does not match the predefined standard signal according to the result of the comparison.
摘要翻译：提供了一种用于在传输线路中进行故障识别的方法和装置。该方法可以包括当传输线路具有故障以获得测量信号时将传输线路的末端进行测量，将测量的信号与预定标准信号进行比较，该预定标准信号具有拍频特性; 并且如果测量信号根据比较结果与预定义的标准信号匹配，则识别故障是瞬态故障，或者如果测量信号与预定标准信号不匹配，则根据比较结果，故障是永久故障比较。

10. 发明申请

US20110148430A1 METHOD AND APPARATUS FOR FAULT IDENTIFICATION IN A POWER TANSMISSION LINE 有权
标题翻译：电力调速线故障识别方法与装置
公开(公告)号：US20110148430A1
公开(公告)日：2011-06-23
申请号：US13060071
申请日：2008-08-29
申请人： Ying Yang , Bin Su , Lei Jing , Qianjin Liu
发明人： Ying Yang , Bin Su , Lei Jing , Qianjin Liu
IPC分类号： G01R31/02
CPC分类号： H02H3/066 , G01R31/085
摘要： A method and apparatus for fault identification in a transmission line are provided. The method may include 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), the predefined standard signal f(t) 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：提供了一种用于在传输线路中进行故障识别的方法和装置。该方法可以包括当传输线路有故障以获得测量信号g（t）时在传输线路的末端进行测量，将测量信号g（t）与预定标准信号f（t）进行比较，预定标准信号f（t）具有拍频特性; 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，则识别该故障是瞬态故障，或者如果所测量的信号g（t）为根据比较结果不符合预定标准信号f（t）。

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