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公开(公告)号：US09923375B2
公开(公告)日：2018-03-20
申请号：US14676517
申请日：2015-04-01
Applicant: ABB TECHNOLOGY LTD
Inventor： Anil Talluri , Gajanan Lade , Rahul Radhakrishnan , Sethuraman Ganesan
IPC: H02J3/42
CPC classification number: H02J3/42 , H02J9/062 , H02J2009/068 , Y10T307/696
Abstract: A method for synchronizing and connecting a first sub power system with a second sub power system with an intelligent electronic device (IED) by use of at least one switching device between the first sub power system and the second sub power system in an electrical power system is provided. The IED monitors power supply parameters such as voltage magnitude, phase and other derived parameters such as voltage and phase differences in the first sub power system and the second sub power system to identify at least one instance for fast bus transfer where the two sub systems have acceptable differences in magnitude and phase. The IED performs phase shifting and voltage magnitude correction in anticipation for synchronizing power supplies on connection at the identified instance.
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公开(公告)号：USD809002S1
公开(公告)日：2018-01-30
申请号：US29548494
申请日：2015-12-14
Applicant: ABB Technology Ltd
Designer： Yun-Ju Chen
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公开(公告)号：US09866109B2
公开(公告)日：2018-01-09
申请号：US14903245
申请日：2013-07-19
Applicant: ABB TECHNOLOGY LTD
Inventor： Jean-Philippe Hasler , Marcio De Oliveira
CPC classification number: H02M1/4208 , H02J3/16 , H02J3/1857 , H02J3/1864 , H02J3/26 , Y02E40/12 , Y02E40/26 , Y02E40/34 , Y02E40/50
Abstract: A method is performed in a control device for controlling a power compensation arrangement including a voltage source converter and one or more power compensation branches, each power compensation branch including a thyristor controlled reactor, a thyristor switched reactor or a thyristor controlled capacitor. The voltage source converter and the one or more power compensation branches are connected to a same busbar. The method includes: detecting a request in an electrical power system to which the power compensation arrangement is connected; determining, based on the request, a need for reactive power supply to the electrical power system; providing reactive power by means of the voltage source converter and/or by one or more of the power compensation branches; and compensating, by means of the voltage source converter, any disturbances caused by the power compensation branches when providing the reactive power to the electrical power system. Corresponding devices are also disclosed.
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234.发明授权公开(公告)号：US09865380B2
公开(公告)日：2018-01-09
申请号：US14890391
申请日：2013-06-24
Applicant: ABB TECHNOLOGY LTD
Inventor： Emmanuel Logakis , Alex Skordos , Panagiota Chatzi
CPC classification number: H01B17/583 , B32B9/007 , B32B2250/40 , B32B2307/202 , C01B32/23 , H01B1/04 , H01B3/18 , Y10T428/30
Abstract: The present invention relates to a material comprising reduced graphene oxide, wherein the degree of reduction of the graphene oxide exhibits a spatial variation so that the material exhibits a gradient in the electric conductivity and/or permittivity. The material can for example be used in an electric device for purposes of field grading and/or dissipation of charges. Examples of electric devices wherein the material is beneficial includes cable accessories, bushings, power cables, microelectronics, switchgear, etc. The invention further relates to a method of producing a material for electrical applications. The method comprises treating different parts of a graphene oxide element differently, so as to achieve a different degree of reduction of the graphene oxide within the element, resulting in a sample having a gradient in the electrical conductivity and/or permittivity. The material could for example be obtained by means of applying a thermal gradient to a graphene oxide element, or by irradiation of a graphene oxide element.
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公开(公告)号：US09851769B2
公开(公告)日：2017-12-26
申请号：US14900952
申请日：2013-07-04
Applicant: ABB Technology Ltd
Inventor： Jean-Philippe Hasler
CPC classification number: G06F1/26 , G05B2219/2639 , G05B2219/41294 , H02J3/00 , H02J3/26 , H02M7/2173 , H02M7/44 , H02M2007/4835 , Y02E40/50
Abstract: A method for controlling a chain-link power converter including three phase legs, each of which phase legs includes a plurality of series-connected converter cells, each of the cells including a DC capacitor, the phase legs being connected in a delta configuration. The method includes detecting an unsymmetrical voltage condition at a terminal of the converter; determining a ratio between a zero sequence and a negative sequence component of a compound current to be injected into the converter, based on the detected unsymmetrical voltage condition; calculating the compound current comprising the zero sequence component and the negative sequence component in accordance with the determined ratio; and injecting the compound current into the converter to control the converter in view of the detected unsymmetrical voltage condition.
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Patent Agency Ranking
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：US09728962B2
公开(公告)日：2017-08-08
申请号：US14443284
申请日：2012-11-15
Applicant: ABB Technology Ltd
Inventor： Jean-Philippe Hasler , Mauro Monge
CPC classification number: H02J3/01 , H02M1/12 , H02M7/483 , H02M7/493 , H02M2007/4835
Abstract: An apparatus and a method for filtering harmonics in a power transmission contact line of a railway system includes a multilevel converter multilevel converter having one single phase leg, which phase leg comprises switching cells, each switching cell comprises semi-conductor switches arranged to selectively provide a connection to a corresponding energy storage element. The multilevel converter also includes a controller provided to control the switching of each switching cell, and wherein the phase leg is configured in two parallel branches of cascaded switching cells, which branches is interconnected in a closed circuit. The controller is provided to monitor the content of harmonics in the contact line, and is adapted to filter the monitored harmonics by means of adapting the switching of the switching cells to absorb the harmonics.
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公开(公告)号：US09705418B2
公开(公告)日：2017-07-11
申请号：US14893816
申请日：2013-06-14
Applicant: ABB TECHNOLOGY LTD
Inventor： Mats Hyttinen
CPC classification number: H02M7/44 , H01B9/0694 , H02M7/003 , H02M2007/4835
Abstract: It is provided a power converter for transferring power between a high voltage DC connection and a high voltage AC connection. The power converter includes a power converter assembly including: a first converter arm, a first reactor, a second reactor and a second converter arm, connected serially between the positive and negative terminals of the DC connection. The high voltage AC connection is provided between the first reactor and the second reactor. Each one of the converter arms includes a plurality of converter cells and each one of the converter cells includes a switching element and an energy storage element. Both the first reactor and the second reactor are oil filled reactors.
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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：US20170077699A1
公开(公告)日：2017-03-16
申请号：US14855569
申请日：2015-09-16
Applicant: ABB Technology Ltd.
Inventor： Anil K. Kondabathini , Zhenyuan Wang , Jiuping Pan , Jiaqi Liang
IPC: H02J1/10
CPC classification number: H02J1/10 , H02J1/00 , H02J1/08 , H02J3/36 , H02J3/382 , H02J3/386 , H02J4/00 , H02J11/00 , Y02E10/763 , Y02E60/60 , Y02P80/14 , Y02P80/152
Abstract: 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.
Abstract translation: 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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