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1.发明授权公开(公告)号：US10120012B2
公开(公告)日：2018-11-06
申请号：US15569900
申请日：2015-05-05
Applicant: ABB Schweiz AG
Inventor： Arkadiusz Burek , Jianping Wang , Jiuping Pan , Reynaldo Nuqui , YouYi Li
Abstract: A method and an apparatus for fault detection in a mixed configuration power transmission line including a plurality of sections arranged between one end of the transmission line and the other end of the transmission line and including at least one overhead line section and at least one cable section are disclosed. Based on a comparison travelling wave voltage or current time derivatives at the one end and the other end of the power transmission line with selected threshold values, it is determined if there is a fault occurring in at least one cable section of the power transmission line. Embodiments utilize amplification of travelling wave voltages and/or currents which may occur at junctions between a cable section and an adjacent overhead line section in determining if the fault occurs in a cable section of the power transmission line.
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公开(公告)号：US09945359B2
公开(公告)日：2018-04-17
申请号：US14826067
申请日：2015-08-13
Applicant: ABB Schweiz AG
Inventor： Debrup Das , Jiuping Pan , Joseph A. Carr
Abstract: 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.
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公开(公告)号：US20170054291A1
公开(公告)日：2017-02-23
申请号：US15344013
申请日：2016-11-04
Applicant: ABB Schweiz AG
Inventor： LI QI , Jiuping Pan , Yao Chen , Guoju Zhang
Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.
Abstract translation: 用于保护包括一个或多个AC / DC转换器和/或一个DC / DC转换器的直流（DC）配电系统的方法和装置以及由DC总线连接的一个或多个负载。 响应于系统中某处的故障检测而执行的示例性方法开始于限制一个或多个转换器中的每一个的输出电流，使得每个受限转换器输出有限的直流电流或 关于相应的预定电流水平。 在一个或多个转换器的电流限制已经发生之后，系统中的一个或多个保护装置被激活，其中激活至少部分地取决于处于或围绕预定故障电流电平的有限的DC电流。
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公开(公告)号：US11477213B2
公开(公告)日：2022-10-18
申请号：US16148043
申请日：2018-10-01
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Reynaldo Nuqui , Anil Kondabathini
Abstract: Technologies for providing secure emergency power control of a high voltage direct current transmission (HVDC) system include a controller. The controller includes circuitry configured to receive status data indicative of a present physical status of a power system. The circuitry is also configured to obtain an emergency power control command triggered by a remote source. The emergency power control command is to be executed by an HVDC transmission system of the power system. Further, the circuitry is configured to determine, as a function of the status data, whether the emergency power control command is consistent with the present physical status of the power system and block, in response to a determination that the emergency power control command is not consistent with the present physical status of the power system, execution of the emergency power control command by the HVDC transmission system.
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公开(公告)号：US11101640B1
公开(公告)日：2021-08-24
申请号：US16942039
申请日：2020-07-29
Applicant: ABB Schweiz AG
Inventor： Li Qi , Peter Steimer , Liming Liu , Jiuping Pan
IPC: H02H7/12
Abstract: Systems, methods, techniques and apparatuses of fault protection. One exemplary embodiment is a protection system including a solid-state switching device, a galvanic isolation switching device, and a controller. The solid-state switching device is coupled between a switch arrangement of a power converter and a direct current (DC) link capacitor of the power converter. The galvanic isolation switching device is coupled between the DC link capacitor and a DC network. The controller is structured to determine a fault is occurring within the DC network, open the solid-state switching device in response to determining the fault is occurring, receive a measurement corresponding to an electrical characteristic of a fault current flowing through the galvanic isolation switching device while the solid-state switching device is open, and determine a location of the fault based on the received measurement.
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Patent Agency Ranking
公开(公告)号：US20200313423A1
公开(公告)日：2020-10-01
申请号：US16366280
申请日：2019-03-27
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Chunming Yuan , Xiaobo Yang , Ritwik Majumder , Bertil Berggren , Frans Dijkhuizen
IPC: H02H7/26
Abstract: Unique systems, methods, techniques and apparatuses of a distribution system are disclosed. One exemplary embodiment is an alternating current (AC) distribution system including a first substation including a first transformer and a protective device; a first distribution network portion coupled to the first transformer; a second substation; a second distribution network portion; a DC interconnection system coupled between the first distribution network portion and the second distribution network portion; and a control system. The control system is structured to detect a fault in the first transformer or the transmission network, isolate the first distribution network from the fault, determine a set point of the DC interconnection system, and operate the DC interconnection system using the set point so as to transfer a portion of the MVAC from the second distribution network portion to the first distribution network portion.
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公开(公告)号：US20200021236A1
公开(公告)日：2020-01-16
申请号：US16036159
申请日：2018-07-16
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Peter Steimer
Abstract: Unique systems, methods, techniques and apparatuses of hybrid power plants are disclosed. One exemplary embodiment is a hybrid power plant system including a plurality of hybrid generation units each including an AC collection bus, an AC power source, an AC-AC power converter coupled to the AC power source and AC collection bus, a DC power source, a DC-AC converter coupled to the DC power source and the AC collection bus, an energy storage device, and a power transformer coupled to the AC collection bus and structured to receive AC power from the AC collection bus, step up a voltage of the received AC power, and output medium voltage AC (MVAC) power.
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公开(公告)号：US10819112B1
公开(公告)日：2020-10-27
申请号：US16366118
申请日：2019-03-27
Applicant: ABB Schweiz AG
Inventor： Jiuping Pan , Chunming Yuan , Xiaobo Yang , Ritwik Majumder , Bertil Berggren , Frans Dijkhuizen , David Schaeffer
Abstract: Systems, methods, techniques and apparatuses of feeder line fault response are disclosed. One exemplary embodiment is a method for operating an alternating current (AC) distribution network including a first feeder line, a second feeder line, and a third feeder line. The method includes isolating a faulted portion of the first feeder line from a healthy portion of the first feeder line; closing a tie switch coupled between the healthy portion and the second feeder line in response to isolating the faulted portion from the healthy portion; determining the second feeder line is experiencing an overload condition after closing the tie switch; and transferring AC power including transferring AC power using a direct current (DC) interconnection system coupled to the third feeder line effective to remove the overload condition from the second feeder line.
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公开(公告)号：US10411587B2
公开(公告)日：2019-09-10
申请号：US15840737
申请日：2017-12-13
Applicant: ABB Schweiz Ag
Inventor： Li Qi , Helen-Xing Huang , Xianyong Feng , Jiuping Pan
Abstract: Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.
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公开(公告)号：US20180166972A1
公开(公告)日：2018-06-14
申请号：US15840737
申请日：2017-12-13
Applicant: ABB Schweiz Ag
Inventor： Li Qi , Helen-Xing Huang , Xianyong Feng , Jiuping Pan
CPC classification number: H02M1/32 , H02M1/08 , H02M7/219 , H02M7/483 , H02M2007/4835
Abstract: Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.
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