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公开(公告)号：US20170045035A1
公开(公告)日：2017-02-16
申请号：US14826067
申请日：2015-08-13
申请人： ABB Technology Ltd.
发明人： Debrup Das , Jiuping Pan , Joseph A. Carr
IPC分类号： F03D9/00
摘要： A wind turbine is disclosed having a generator and rectifier and structured to provide direct current power that in one form is medium voltage direct current (MVDC). The wind turbine includes a crowbar circuit arranged to protect from a condition such as an overvoltage. The crowbar can be activated based on a voltage measurement or rate of change of voltage. A resistor can be coupled to the crowbar to absorb excess power provided by the generator during the overvoltage condition. Individual wind turbines in a wind farm can each have individual crow bars that can be activated based on local measurement of a voltage condition. In some forms the crowbar can be coupled with a transformer, for example coupled with a tertiary winding of a three winding transformer.
摘要翻译： 公开了一种具有发电机和整流器并被构造成提供直流电力的风力涡轮机，其以一种形式是中等电压直流（MVDC）。 风力涡轮机包括布置成防止诸如过电压的状况的短路电路。 可以根据电压测量或电压变化率来激活撬棒。 电阻器可以耦合到撬棍以吸收在过电压状态期间由发电机提供的过多功率。 风力发电场中的各个风力涡轮机可以各自具有可以基于电压状况的局部测量来激活的单独的乌鸦棒。 在一些形式中，撬棍可以与变压器耦合，例如与三绕组变压器的三次绕组耦合。
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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
申请人： ABB Technology Ltd.
发明人： Jiuping Pan , Li Qi , Xianyong Feng
摘要： 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.
摘要翻译： 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：US09762047B2
公开(公告)日：2017-09-12
申请号：US14741412
申请日：2015-06-16
申请人： ABB Technology Ltd.
发明人： Jiuping Pan , Li Qi , Xianyong Feng
摘要： 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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公开(公告)号：US09831668B2
公开(公告)日：2017-11-28
申请号：US14855569
申请日：2015-09-16
申请人： ABB Technology Ltd.
发明人： Anil K. Kondabathini , Zhenyuan Wang , Jiuping Pan , Jiaqi Liang
CPC分类号： H02J1/10 , H02J1/00 , H02J1/08 , H02J3/36 , H02J3/382 , H02J3/386 , H02J4/00 , H02J11/00 , Y02E10/763 , Y02E60/60 , Y02P80/14 , Y02P80/152
摘要： A power distribution system for off-shore natural resource platforms includes an off-shore medium voltage direct current (MVDC) power bus. The MVDC power bus includes multiple power bus segments, each of which may be connected to one or more other power bus segments via a corresponding circuit breaker. Each power bus segment may also be electrically coupled to an off-shore renewable energy source, such as a wind farm, and/or an off-shore drilling platform. The off-shore drilling platforms may include local power distribution systems electrically connected to a corresponding power bus segment via a circuit breaker to receive power from the MVDC power bus and supply power to local equipment of the off-shore drilling platform.
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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
申请人： ABB Technology Ltd.
发明人： Li Qi , Xianyong Feng , Jiuping Pan
CPC分类号： H02H3/10 , G01R31/086 , G01R31/088 , H02H3/38 , H02H3/445 , H02H7/268 , Y04S10/522
摘要： 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：US20170077699A1
公开(公告)日：2017-03-16
申请号：US14855569
申请日：2015-09-16
申请人： ABB Technology Ltd.
发明人： Anil K. Kondabathini , Zhenyuan Wang , Jiuping Pan , Jiaqi Liang
IPC分类号： H02J1/10
CPC分类号： H02J1/10 , H02J1/00 , H02J1/08 , H02J3/36 , H02J3/382 , H02J3/386 , H02J4/00 , H02J11/00 , Y02E10/763 , Y02E60/60 , Y02P80/14 , Y02P80/152
摘要： A power distribution system for off-shore natural resource platforms includes an off-shore medium voltage direct current (MVDC) power bus. The MVDC power bus includes multiple power bus segments, each of which may be connected to one or more other power bus segments via a corresponding circuit breaker. Each power bus segment may also be electrically coupled to an off-shore renewable energy source, such as a wind farm, and/or an off-shore drilling platform. The off-shore drilling platforms may include local power distribution systems electrically connected to a corresponding power bus segment via a circuit breaker to receive power from the MVDC power bus and supply power to local equipment of the off-shore drilling platform.
摘要翻译： 离岸自然资源平台配电系统包括离岸中压直流（MVDC）电力总线。 MVDC电源总线包括多个电源总线段，每个段可以经由相应的断路器连接到一个或多个其他电力总线段。 每个电力总线段还可以电耦合到离岸可再生能源，例如风力发电场和/或离岸钻井平台。 离岸钻井平台可以包括经由断路器电连接到对应的电力总线段的本地配电系统，以从MVDC电力总线接收电力并向离岸钻井平台的本地设备供电。
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公开(公告)号：US20160352091A1
公开(公告)日：2016-12-01
申请号：US14725955
申请日：2015-05-29
申请人： ABB Technology Ltd.
发明人： Li Qi , Xianyong Feng , Jiuping Pan
IPC分类号： H02H3/10
CPC分类号： H02H3/10 , G01R31/086 , G01R31/088 , H02H3/38 , H02H3/445 , H02H7/268 , Y04S10/522
摘要： 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.
摘要翻译： 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：US20150338472A1
公开(公告)日：2015-11-26
申请号：US14655298
申请日：2013-02-12
申请人： ABB TECHNOLOGY LTD
发明人： Reynaldo Nuqui , Jiuping Pan , Jianping Wang
IPC分类号： G01R31/40
CPC分类号： G01R31/40 , G01R31/025 , H02H3/087 , H02H7/268
摘要： A method to facilitate fault detection in the protected unit after connection to the at least a portion of the power system. A current is sensed in the protected unit during a plurality of different time periods. Compliance of at least one of the sensed currents with a respective first current criteria is determined based on a first current threshold value. On a condition that there is determined that at least one of the sensed currents comply with the respective first current criteria, a fault in the protected unit is detected.
摘要翻译： 一种用于在连接到电力系统的至少一部分之后促进受保护单元中的故障检测的方法。 在多个不同时间段期间，在被保护单元中感测到电流。 基于第一电流阈值来确定具有相应的第一电流标准的至少一个感测电流的符合性。 在确定感测到的电流中的至少一个符合相应的第一当前准则的情况下，检测到受保护单元中的故障。
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