公开(公告)号：US09989580B2

公开(公告)日：2018-06-05

申请号：US13946644

申请日：2013-07-19

Applicant: ABB Research Ltd.

Inventor： Xiaoming Feng ,  Christian Krueppel ,  William Peterson

IPC: G01R31/08 ,  G01R21/06 ,  H02J3/00 ,  G06F17/50

CPC classification number: G01R31/088 ,  G01R21/06 ,  G01R31/086 ,  G06F17/5036 ,  H02J2003/007

Abstract: Fault analysis for an electric network having a plurality of multi-phase buses is performed by computing equivalent circuits for the multi-phase buses of interest. Each equivalent circuit includes an N×N impedance matrix, N corresponding to the number of phases of the multi-phase bus for which that equivalent circuit is computed. Elements of the impedance matrices are determined based on voltages resulting from a plurality of experimental current injection vectors and a factorized pre-fault admittance matrix. The pre-fault admittance matrix represents nodal admittance of the multi-phase buses without faults. A fault current injection vector for each multi-phase bus and fault type of interest is determined based on the equivalent circuit determined for that multi-phase bus. A fault voltage vector for each multi-phase bus and fault type of interest is determined based on the factorized pre-fault admittance matrix and the fault current injection vector determined for that multi-phase bus and fault type.

公开(公告)号：US09853525B2

公开(公告)日：2017-12-26

申请号：US13789515

申请日：2013-03-07

Applicant: ABB Research Ltd.

Inventor： Dezheng Wu

IPC: H02K7/09 ,  H02K11/00 ,  F16C32/04 ,  H02K11/21

CPC classification number: H02K11/21 ,  F16C32/0446 ,  F16C32/0476 ,  F16C2300/02 ,  H02K7/09

Abstract: The subject matter described herein includes a magnetic bearing assembly and an arrangement of position sensors for the magnetic bearing assembly. In one example the magnetic bearing assembly includes a rotor for fixedly coupling to a shaft for rotating with the shaft. The assembly further includes at least one stator assembly located adjacent to the rotor and circumferentially surrounding the shaft. The stator assembly includes a control coil for magnetically supporting the rotor. The stator assembly further includes a plurality of position sensors that are circumferentially spaced from each other and that extend radially from the stator assembly for measuring an indication of axial displacement of the rotor.

公开(公告)号：US09769728B2

公开(公告)日：2017-09-19

申请号：US14633619

申请日：2015-02-27

Applicant: ABB RESEARCH LTD

Inventor： Dacfey Dzung ,  Yvonne-Anne Pignolet

IPC: H04L12/707 ,  H04W40/12 ,  H04W76/02 ,  H04L12/721

CPC classification number: H04W40/12 ,  H04L45/124 ,  H04L45/22 ,  H04W76/10 ,  Y02D70/22 ,  Y02D70/34

Abstract: The present disclosure encompasses establishing and maintaining a routing protocol based on a measured link metric p, such as for a smart grid communication system. A link between a first node such as a router A and a neighbouring second node B of a communication path from a source to a destination in a packet oriented communication network is selected wherein the two nodes are connected via first and second communication links. An updated link metric p(t+1) at a point in time t+1 of the first communication link is determined. The first or the second communication link is selected for transmitting a further packet from node A to node B by comparing the updated link metric p(t+1) to a threshold pthr.

公开(公告)号：US09684017B2

公开(公告)日：2017-06-20

申请号：US15088760

申请日：2016-04-01

Applicant: ABB Research Ltd. ,  Universite de Strasbourg ,  Centre National de la Recherche Scientifique

Inventor： Joris Pascal ,  Jean-Baptiste Kammerer ,  Simon Paulus

IPC: G01R15/18 ,  G01R35/00 ,  G01R19/00

CPC classification number: G01R15/181 ,  G01R19/0092 ,  G01R35/005

Abstract: A current measurement device for measuring a current through a primary conductor is provided. The current measurement device comprises a current transducer of the Rogowski type, the current transducer comprising a conductor winding connected to a pair of transducer terminals and adapted to induce there between a measurement voltage indicative of a current through the primary conductor; a pair of calibration terminals adapted for providing a calibration current to a calibration current path conforming to the primary conductor, so that the calibration current induces a calibration response voltage component between the pair of transducer terminals; and a control circuit. The control circuit comprises a calibration current generator for generating the calibration current and connected to the pair of calibration terminals for providing the calibration current via the pair of calibration terminals to the calibration current path, and a voltage analyzer connected to the pair of transducer terminals for receiving the calibration response voltage component induced between the pair of transducer terminals.

公开(公告)号：US09678492B2

公开(公告)日：2017-06-13

申请号：US14449762

申请日：2014-08-01

Applicant: ABB RESEARCH LTD

Inventor： Sebastian Obermeier ,  Hadeli Hadeli ,  Michael Wahler ,  Sascha Stoeter ,  Ana Hristova

IPC: G05B15/02 ,  H04L29/06 ,  G05B19/042

CPC classification number: G05B15/02 ,  G05B19/0428 ,  H04L63/20

Abstract: A controller module, method, and a non-transitory computer program product are disclosed for the dynamic configuration of an industrial control system, which can include a current settings receiver configured to receive current configuration and security settings of the industrial control system, a changed settings receiver configured to receive changed configuration settings of the industrial control system, a settings analyzer configured to determine, based on the current configuration and security settings and the changed configuration settings, updated configuration and security settings of the industrial control system, and a dynamic activator configured to dynamically establish at least one communication path in order to activate updated configuration and security settings of the industrial control system.

公开(公告)号：US09581622B2

公开(公告)日：2017-02-28

申请号：US14589745

申请日：2015-01-05

Applicant: ABB Research Ltd.

Inventor： Georg Mueller ,  Andreas Frank ,  Klaus Bohnert ,  Xun Gu

IPC: G01R31/00 ,  G01R19/32 ,  G01R15/24

CPC classification number: G01R19/32 ,  G01R15/246 ,  G01R15/247

Abstract: In a fiber-optic current sensor, a 22.5° Faraday rotator, which is part of the sensing fiber coil, determines the working point of the sensor. The coil is operated with substantially linearly polarized light or incoherent substantially left and right circularly polarized light waves. In one arrangement, a polarization beam splitter generates two optical signals that vary in anti-phase with changing current. A signal processor determines the current from the two anti-phase signals. Appropriately detuned and oriented fiber-optic half-wave or quarter-wave retarders before the fiber coil are used to reduce or cancel the adverse effects of temperature and bend-induced birefringence on the measurement signal. Moreover, the temperature may be derived from the difference in the bias of the anti-phase signals and may be used to cancel temperature effects in the signal processor.

Abstract translation: 在光纤电流传感器中，作为传感光纤线圈的一部分的22.5°法拉第转子决定了传感器的工作点。 线圈以基本线性偏振光或非相干的基本左和右圆偏振光波操作。 在一种布置中，偏振分束器产生与改变电流反相变化的两个光信号。 信号处理器确定来自两个反相信号的电流。 在光纤线圈之前适当地失谐和定向的光纤半波或四分之一波长延迟器用于减少或消除温度和弯曲引起的双折射对测量信号的不利影响。 此外，温度可以从反相信号的偏置差导出，并且可以用于消除信号处理器中的温度效应。

公开(公告)号：US09568535B2

公开(公告)日：2017-02-14

申请号：US14354936

申请日：2012-10-31

Applicant: ABB RESEARCH LTD

Inventor： Roy Ball

IPC: G01R31/02 ,  H02H3/52 ,  H02H7/04 ,  H02H3/04 ,  G01R15/18

CPC classification number: G01R31/027 ,  G01R15/18 ,  G01R31/026 ,  H02H3/044 ,  H02H3/52 ,  H02H7/042

Abstract: A method for detecting an open current transformer in an electrical power system includes measuring for a voltage value on a secondary side of a current transformer. The method continues with observing the voltage value for a predetermined waveform and initiating corrective action in the electrical power system upon detection of the predetermined waveform.

Abstract translation: 一种用于检测电力系统中的开路电流互感器的方法包括测量电流互感器的次级侧上的电压值。 该方法继续观察预定波形的电压值，并且在检测到预定波形时启动电力系统中的校正动作。

公开(公告)号：US09525284B2

公开(公告)日：2016-12-20

申请号：US14038842

申请日：2013-09-27

Applicant: ABB Research Ltd

Inventor： Hongrae Kim ,  Jun Li ,  Zhenyuan Wang ,  Joseph A. Carr ,  Eddy C. Aeloiza ,  Darren D. Tremelling

IPC: H02J1/00 ,  H02J3/00 ,  H02J3/36 ,  H02J3/38 ,  H02M3/337 ,  H02M7/483

CPC classification number: H02J1/00 ,  H02J3/36 ,  H02J3/386 ,  H02M3/3372 ,  H02M2007/4835 ,  Y02E10/763 ,  Y02E60/60 ,  Y10T307/707

Abstract: A power generation system includes at least one generator that generates a medium voltage direct current that has a positive DC voltage output and a negative DC voltage output. The system also provides a medium voltage DC (MVDC) cable system with a positive pole cable and a negative pole cable, wherein the positive pole cable is connected to the positive DC voltage output and the negative pole cable is connected to the negative DC voltage output. A substation is connected to the MVDC cable system and includes at least one DC/DC step-up converter to step-up the medium voltage direct current to a high voltage direct current.

Abstract translation: 发电系统包括至少一个发电机，其产生具有正直流电压输出和负直流电压输出的中压直流电。 该系统还提供一个带正极电缆和负极电缆的中压直流（MVDC）电缆系统，其中正极电缆连接到正直流电压输出，负极电缆连接到负直流电压输出 。 变电站连接到MVDC电缆系统，并包括至少一个DC / DC升压转换器，以将中压直流电升压到高压直流电。

公开(公告)号：US20160269167A1

公开(公告)日：2016-09-15

申请号：US15164541

申请日：2016-05-25

Applicant: ABB Research Ltd

Inventor： Hubert Kirrmann ,  Jean-Charles Tournier

IPC: H04L7/00 ,  H04L29/06 ,  H04J3/06

CPC classification number: H04L7/0008 ,  G04G7/00 ,  H04J3/0664 ,  H04J3/067 ,  H04L9/3242 ,  H04L63/123

Abstract: The present disclosure provides a secure one-step IEEE 1588 clock using either a symmetric or asymmetric protection scheme. Clocks of mission-critical or highly-available devices in industrial automation systems connected to a communication network are synchronized by sending, by a master clock, a synchronization message, e.g., a single message of the one-step-clock type according to IEEE 1588, including a time stamp, and by receiving and evaluating, by a slave clock, the synchronization message. A synchronization component or module of the master clock prepares, or composes, prior to a projected send time, a synchronization message including a time stamp of the projected send time, and secures the synchronization message in advance of the projected send time. Securing the synchronization message occurs by suitable cryptographic means allowing for authentication of the time stamp at a receiving slave clock. At the projected send time, the secured synchronization message is transmitted.

Abstract translation: 本公开提供了使用对称或非对称保护方案的安全的一步IEEE 1588时钟。 连接到通信网络的工业自动化系统中的任务关键或高可用设备的时钟通过主时钟发送同步消息（例如，根据IEEE 1588的一步时钟类型的单个消息）来同步 ，包括时间戳，并且通过从属时钟接收和评估同步消息。 主时钟的同步组件或模块在投影的发送时间之前准备或组合包括投影的发送时间的时间戳的同步消息，并且在预计的发送时间之前确保同步消息。 通过允许在接收从时钟处的时间戳的认证的合适的加密装置发生保护同步消息。 在预计的发送时间，发送安全的同步消息。

公开(公告)号：US09418774B2

公开(公告)日：2016-08-16

申请号：US14167373

申请日：2014-01-29

Applicant: ABB Research Ltd.

Inventor： Chau-Hon Ho ,  Spiros Tzavalas

IPC: C08L63/00 ,  C08G59/68 ,  C08G59/70 ,  H01B3/40 ,  C08G59/18 ,  C08G59/24 ,  B32B27/04 ,  B32B27/26 ,  B32B27/38

CPC classification number: H01B3/40 ,  C08G59/18 ,  C08G59/245 ,  C08G59/68 ,  C08L63/00

Abstract: A curable epoxy resin composition including a defined aromatic epoxy resin component and a defined latent catalyst system, and optionally further additives, the curable composition being a single epoxy resin composition having a prolonged pot life at a processing temperature within the range of 40° C. to 70° C., wherein: (a) the epoxy resin component is a compound of formula (I) in monomeric form or in a low polymeric form thereof, or is a mixture of such compounds: the epoxy resin component having an inherent viscosity within the range of 80 mPas to 300 mPas, measured at a temperature of 50° C.; (b) the latent catalyst system includes at least one metal acetylacetonate and at least one phenolic compound.

Abstract translation: 一种可固化的环氧树脂组合物，其包含限定的芳族环氧树脂组分和限定的潜在催化剂体系，以及任选的其它添加剂，该可固化组合物是在40℃的加工温度下具有延长的适用期的单一环氧树脂组合物。 其中：（a）环氧树脂组分是单体形式或其低聚物形式的式（I）化合物，或者是这些化合物的混合物：环氧树脂组分具有特性粘度 在80mPas至300mPas的范围内，在50℃的温度下测量。 （b）潜催化剂体系包括至少一种乙酰丙酮金属和至少一种酚类化合物。