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1. 发明授权

US09496706B2 Fast power swing unblocking method and apparatus for distance protection in power system 有权
标题翻译：电力系统远距离保护功能快速切换方法及装置
公开(公告)号：US09496706B2
公开(公告)日：2016-11-15
申请号：US13002701
申请日：2008-07-07
申请人： Bin Su , Lei Jing , Qianjin Liu
发明人： Bin Su , Lei Jing , Qianjin Liu
IPC分类号： G06F19/00 , H02H3/40 , G01R31/08
CPC分类号： H02H3/40 , G01R31/085 , G01R31/088
摘要： The present invention discloses a fast power swing unblocking method and apparatus for a distance protection in a power system, which is 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 in a power system according to the present invention comprises calculating changing rates of impedances for all operating loops of the distance protection in the power system; and determining a fault loop based on the calculated changing rates. If there is a fault loop, a blocked distance zone for the fault loop is unblocked. Before calculating the changing rates, whether the power system is under a power swing is checked and a distance zone that might mal-operate under the power swing is blocked if it is checked that the power system is under the power swing. By applying this invention, the performance of the distance protection during power swings can be improved, and the distance protection can ensure faster and phase-segregated operation, which are very beneficial for the system reliability.
摘要翻译：本发明公开了一种用于电力系统中的距离保护的快速功率摆幅解锁方法和装置，其能够确保在功率摆动（3相或2相摆动）期间对于故障的距离保护的快速相位偏移脱扣，。根据本发明的电力系统中的功率摆动解锁方法包括计算电力系统中距离保护的所有操作回路的阻抗变化率; 以及基于所计算的变化率来确定故障循环。如果存在故障循环，故障循环的阻塞距离区域将被解除阻塞。在计算变化率之前，检查电力系统是否处于功率摆动状态，如果检查到电力系统处于功率摆动状态，则在功率摆动下可能会运行故障的距离区域被阻止。通过应用本发明，可以提高功率摆动期间的距离保护性能，并且距离保护可以确保更快和相位分离的操作，这对系统的可靠性是非常有益的。

2. 发明申请

US20110166720A1 FAST POWER SWING UNBLOCKING METHOD AND APPARATUS FOR DISTANCE PROTECTION IN POWER SYSTEM 有权
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：US20110166720A1
公开(公告)日：2011-07-07
申请号：US13002701
申请日：2008-07-07
申请人： Bin Su , Lei Jing , Qianjin Liu
发明人： Bin Su , Lei Jing , Qianjin Liu
IPC分类号： G06F1/30
CPC分类号： H02H3/40 , G01R31/085 , G01R31/088
摘要： The present invention discloses a fast power swing unblocking method and apparatus for a distance protection in a power system, which is 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 in a power system according to the present invention comprises calculating changing rates of impedances for all operating loops of the distance protection in the power system; and determining a fault loop based on the calculated changing rates. If there is a fault loop, a blocked distance zone for the fault loop is unblocked. Before calculating the changing rates, whether the power system is under a power swing is checked and a distance zone that might mal-operate under the power swing is blocked if it is checked that the power system is under the power swing. By applying this invention, the performance of the distance protection during power swings can be improved, and the distance protection can ensure faster and phase-segregated operation, which are very beneficial for the system reliability.
摘要翻译：本发明公开了一种用于电力系统中的距离保护的快速功率摆幅解锁方法和装置，其能够确保在功率摆动（3相或2相摆动）期间对于故障的距离保护的快速相位偏移脱扣，。根据本发明的电力系统中的功率摆动解锁方法包括计算电力系统中距离保护的所有操作回路的阻抗变化率; 以及基于所计算的变化率来确定故障循环。如果存在故障循环，故障循环的阻塞距离区域将被解除阻塞。在计算变化率之前，检查电力系统是否处于功率摆动状态，如果检查到电力系统处于功率摆动状态，则在功率摆动下可能会运行故障的距离区域被阻止。通过应用本发明，可以提高功率摆动期间的距离保护性能，并且距离保护可以确保更快和相位分离的操作，这对系统的可靠性是非常有益的。

3. 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。

4. 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）。

5. 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。

6. 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。

7. 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。

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