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公开(公告)号：US20160372911A1
公开(公告)日：2016-12-22
申请号：US14741412
申请日：2015-06-16
Applicant: ABB Technology Ltd.
Inventor： Jiuping Pan , Li Qi , Xianyong Feng
CPC classification number: H02H3/08 , G01R31/08 , H02H3/042 , H02H3/20 , H02H7/261 , H02H7/262 , H02H7/268
Abstract: Technologies for detecting a fault location in a DC electrical distribution system include a bus protection unit that monitors a DC electrical bus. The bus protection unit includes at least one sensor to produce sensor data indicative of one or more characteristics of the DC electrical bus monitored by the bus protection unit. The bus protection unit monitors the sensor data, determines whether a fault has occurred based on the sensor data, and determines whether the fault occurred within a bus zone defined by the DC electrical bus in response to determining that the fault has occurred. Further, the bus detection unit trips isolation devices within the bus zone in response to a determination that the fault occurred within the bus zone or a communication from another bus protection unit indicating the fault has occurred within the bus zone. The bus protection unit transmits a bus fault indication signal to another bus protection unit in response to a determination that the fault has occurred.
Abstract translation: 用于检测直流配电系统中的故障位置的技术包括监视直流电总线的总线保护单元。 总线保护单元包括至少一个传感器，用于产生指示由总线保护单元监控的直流电母线的一个或多个特性的传感器数据。 总线保护单元监视传感器数据，基于传感器数据确定是否发生故障，并且响应于确定发生故障来确定故障是否发生在由DC电母线限定的总线区域内。 此外，总线检测单元响应于确定在总线区内发生故障或者来自指示在总线区内发生故障的另一总线保护单元的通信，总线区内的隔离设备跳闸。 总线保护单元响应于发生故障的确定，向总线保护单元发送总线故障指示信号。
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公开(公告)号：US09800044B2
公开(公告)日：2017-10-24
申请号：US14725955
申请日：2015-05-29
Applicant: ABB Technology Ltd.
Inventor： Li Qi , Xianyong Feng , Jiuping Pan
CPC classification number: H02H3/10 , G01R31/086 , G01R31/088 , H02H3/38 , H02H3/445 , H02H7/268 , Y04S10/522
Abstract: Unique systems, methods, techniques and apparatuses of fault location in DC power distribution systems are disclosed. One exemplary embodiment is a DC power distribution system including a plurality of zones each including a DC power distribution line and a protective device. Each protective device structured to sense one or more electrical characteristics of a line and to controllably open a circuit including the line. At least one intelligent electronic device is structured to determine a line inductance based upon electrical characteristics sensed by one or more of the protective devices and to evaluate a location of the line fault based upon the determined line inductance.
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公开(公告)号：US09614429B2
公开(公告)日：2017-04-04
申请号：US14828882
申请日：2015-08-18
Applicant: ABB Technology Ltd.
Inventor： Jiaqi Liang , Li Qi
CPC classification number: H02M1/12 , H02M1/4216 , H02M7/06 , H02M7/064 , H02M7/162 , H02M2007/4835 , Y02B70/126
Abstract: A system includes a first DC rail and a second DC rail, and a rectifier coupled with the first and second DC rails. A multilevel converter is also coupled with the DC rails and operable to limit input current harmonics to the rectifier. Differences between voltage phase and current phase in AC electrical power supplied to the system are compensated via closed loop control of a voltage output of the multilevel converter.
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公开(公告)号：US20170054393A1
公开(公告)日：2017-02-23
申请号：US14828079
申请日：2015-08-17
Applicant: ABB Technology Ltd.
Inventor： Wen Ouyang , Jiaqi Liang , Li Qi
CPC classification number: H02P9/006 , H02K3/16 , H02K3/20 , H02K11/046 , H02K19/10 , H02M1/081 , H02M7/1557
Abstract: Technologies for reducing peak fault output current in a DC power generation system include a generator having a reduced damper winding and a controller to control a rectifier array to generate a DC power output. In some embodiments, the generator may have no damper windings, may have damper windings including a reduced number of damper bars, and/or may have damper windings having separated end ring mounts for each damper bar. The controller is configured to control the rectifier array so as to reduce oscillations of the DC output that may be due to the reduced damper windings. To do so, the controller is configured to generate the control signal based on an oscillation component of the DC power output. For example, the controller may generate an oscillation correction signal based on the DC power output and adjust a firing angle set point of the rectifier array based on the oscillation correction signal.
Abstract translation: 用于降低直流发电系统中的峰值故障输出电流的技术包括具有减小的阻尼绕组的发电机和用于控制整流器阵列以产生直流功率输出的控制器。 在一些实施例中，发电机可以没有阻尼器绕组，可以具有包括减少数量的阻尼杆的阻尼绕组，和/或可以具有用于每个阻尼器条的具有分离的端环安装件的阻尼绕组。 控制器被配置为控制整流器阵列，以便减少可能由减小的阻尼绕组引起的DC输出的振荡。 为此，控制器被配置为基于DC功率输出的振荡分量产生控制信号。 例如，控制器可以基于直流功率输出产生振荡校正信号，并且基于振荡校正信号调整整流器阵列的触发角设定点。
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Patent Agency Ranking
公开(公告)号：US20160352091A1
公开(公告)日：2016-12-01
申请号：US14725955
申请日：2015-05-29
Applicant: ABB Technology Ltd.
Inventor： Li Qi , Xianyong Feng , Jiuping Pan
IPC: H02H3/10
CPC classification number: H02H3/10 , G01R31/086 , G01R31/088 , H02H3/38 , H02H3/445 , H02H7/268 , Y04S10/522
Abstract: Unique systems, methods, techniques and apparatuses of fault location in DC power distribution systems are disclosed. One exemplary embodiment is a DC power distribution system including a plurality of zones each including a DC power distribution line and a protective device. Each protective device structured to sense one or more electrical characteristics of a line and to controllably open a circuit including the line. At least one intelligent electronic device is structured to determine a line inductance based upon electrical characteristics sensed by one or more of the protective devices and to evaluate a location of the line fault based upon the determined line inductance.
Abstract translation: 公开了直流配电系统中故障定位的独特系统，方法，技术和装置。 一个示例性实施例是包括多个区域的直流配电系统，每个区域包括直流配电线路和保护装置。 每个保护装置构造成感测线的一个或多个电特性并且可控地打开包括线的电路。 至少一个智能电子设备被构造成基于由一个或多个保护装置感测到的电特性来确定线路电感，并且基于所确定的线路电感来评估线路故障的位置。
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公开(公告)号：US09791495B2
公开(公告)日：2017-10-17
申请号：US14985539
申请日：2015-12-31
Applicant: ABB Technology Ltd.
Inventor： Li Qi , Xianyong Feng
IPC: G01R31/08
CPC classification number: G01R31/085 , G01R31/086 , G01R31/088 , H02H3/042 , H02H3/40 , H02H7/26 , Y04S10/522
Abstract: Unique systems, methods, techniques and apparatuses of fault location in DC power distribution systems are disclosed. One exemplary embodiment is a DC power distribution system comprising at least one DC power distribution network and at least two protective devices operatively coupled to the DC power distribution network. Each protective device is structured to sense one or more electrical characteristics associated with the DC power distribution network and to controllably interrupt current through the DC power distribution line. A control system is structured to determine the location of a high impedance fault between two of the protective devices using one or more electrical characteristics sensed by the two protective devices to calculate the inductance and resistance of the portion of the DC power distribution line between one of the protective devices and the high impedance fault.
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公开(公告)号：US20170192047A1
公开(公告)日：2017-07-06
申请号：US14985539
申请日：2015-12-31
Applicant: ABB Technology Ltd.
Inventor： Li Qi , Xianyong Feng
IPC: G01R31/08
CPC classification number: G01R31/085 , G01R31/086 , G01R31/088 , H02H3/042 , H02H3/40 , H02H7/26 , Y04S10/522
Abstract: Unique systems, methods, techniques and apparatuses of fault location in DC power distribution systems are disclosed. One exemplary embodiment is a DC power distribution system comprising at least one DC power distribution network and at least two protective devices operatively coupled to the DC power distribution network. Each protective device is structured to sense one or more electrical characteristics associated with the DC power distribution network and to controllably interrupt current through the DC power distribution line. A control system is structured to determine the location of a high impedance fault between two of the protective devices using one or more electrical characteristics sensed by the two protective devices to calculate the inductance and resistance of the portion of the DC power distribution line between one of the protective devices and the high impedance fault.
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8.发明申请公开(公告)号：US20170054358A1
公开(公告)日：2017-02-23
申请号：US14828882
申请日：2015-08-18
Applicant: ABB Technology Ltd.
Inventor： Jiaqi Liang , Li Qi
CPC classification number: H02M1/12 , H02M1/4216 , H02M7/06 , H02M7/064 , H02M7/162 , H02M2007/4835 , Y02B70/126
Abstract: A system includes a first DC rail and a second DC rail, and a rectifier coupled with the first and second DC rails. A multilevel converter is also coupled with the DC rails and operable to limit input current harmonics to the rectifier. Differences between voltage phase and current phase in AC electrical power supplied to the system are compensated via closed loop control of a voltage output of the multilevel converter.
Abstract translation: 系统包括第一直流轨和第二直流轨，以及与第一和第二直流轨耦合的整流器。 多电平转换器还与DC电路耦合，可操作以将输入电流谐波限制到整流器。 通过多电平转换器的电压输出的闭环控制来补偿提供给系统的交流电力中的电压相位和电流相位之间的差异。
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公开(公告)号：US09762047B2
公开(公告)日：2017-09-12
申请号：US14741412
申请日：2015-06-16
Applicant: ABB Technology Ltd.
Inventor： Jiuping Pan , Li Qi , Xianyong Feng
CPC classification number: H02H3/08 , G01R31/08 , H02H3/042 , H02H3/20 , H02H7/261 , H02H7/262 , H02H7/268
Abstract: Technologies for detecting a fault location in a DC electrical distribution system include a bus protection unit that monitors a DC electrical bus. The bus protection unit includes at least one sensor to produce sensor data indicative of one or more characteristics of the DC electrical bus monitored by the bus protection unit. The bus protection unit monitors the sensor data, determines whether a fault has occurred based on the sensor data, and determines whether the fault occurred within a bus zone defined by the DC electrical bus in response to determining that the fault has occurred. Further, the bus detection unit trips isolation devices within the bus zone in response to a determination that the fault occurred within the bus zone or a communication from another bus protection unit indicating the fault has occurred within the bus zone. The bus protection unit transmits a bus fault indication signal to another bus protection unit in response to a determination that the fault has occurred.
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