公开(公告)号：US10763663B2

公开(公告)日：2020-09-01

申请号：US15906486

申请日：2018-02-27

Applicant: ABB Power Grids Switzerland AG

Inventor： Reynaldo Nuqui

IPC: H02H7/26 ,  G01R31/08 ,  H02H1/00 ,  H02H3/16

Abstract: The present application is directed to a three phase power transmission system including a first conductor line, a second conductor line and a third conductor line. One or more sensors are configured to detect traveling waves in each of the first second and third conductors. A controller is configured to receive data transmitted by the one or more sensors and determine which of the traveling modal waves is a first metallic mode wave (MM1), a second metallic mode (MM2) wave and/or a ground mode (GM0) wave. The controller is operable to determine which of the conductor lines are faulted based on detection of one or more of MM1 waves, MM2 waves and/or GM0 waves.

公开(公告)号：US20200274356A1

公开(公告)日：2020-08-27

申请号：US16799016

申请日：2020-02-24

Applicant: ABB Power Grids Switzerland AG

Inventor： Andrew Tuckey ,  Francesco Baccino

IPC: H02J3/00 ,  G05B13/04 ,  H02J3/38

Abstract: A method of controlling a microgrid includes retrieving, by an energy management system, EMS, a forecast variable value for a forecast variable. The EMS determines an operating point value for a controllable asset that depends on the retrieved forecast variable value. The EMS determines an operating point shift value for the controllable asset, the operating point shift value representing a shift in operating point value in response to a variation in forecast variable value. The operating point value and the operating point shift value are provided to a power management system, PMS, of the microgrid.

公开(公告)号：US20200259329A1

公开(公告)日：2020-08-13

申请号：US16274314

申请日：2019-02-13

Applicant: ABB Power Grids Switzerland AG

Inventor： Alexander Brissette ,  Joseph A. Carr ,  Zhenyuan Wang

IPC: H02J3/18 ,  G05B17/02 ,  G06Q30/02 ,  G06Q50/06

Abstract: Architectures, apparatuses, methods, systems, and techniques for controlling electrical power distribution network are disclosed. Distributed, hierarchical controls including layered locational energy service control variables may be utilized to determine and control the provision of energy services, including real power, reactive power (VAR), and capacity reserves, by DERs in a distribution network. In a first ex-ante iteration a simulation may be performed to calculate a set of subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of DER-specific control variables based on DER locational energy service prices. In a second ex-ante iteration a set of actual subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of actual DER-specific control variables based on DER locational energy service prices. Provision of energy services by DERs in a distribution network occur in response to the determined control variables.

公开(公告)号：US10742019B2

公开(公告)日：2020-08-11

申请号：US16349275

申请日：2017-10-31

Applicant: ABB Power Grids Switzerland AG

Inventor： Bengt-Olof Stenestam

IPC: H02H5/04 ,  H02H5/06 ,  H02H7/04 ,  H02H7/055 ,  H01F29/02 ,  H01H9/00 ,  H02H1/00 ,  H01F29/04 ,  G01R31/62

Abstract: The present disclosure relates to a method of monitoring switching by an on-load tap changer (OLTC) 1 from a first contact 3a to a second contact 3b of a transformer winding 2. The method includes measuring a voltage of the transformer. The method also includes measuring a temperature of the OLTC. The method also includes, based on the measured voltage and temperature, determining whether the switching from the first contact to the second contact has been successful.

公开(公告)号：US10734803B2

公开(公告)日：2020-08-04

申请号：US15574390

申请日：2015-05-26

Applicant: ABB Power Grids Switzerland AG

Inventor： YouYi Li ,  Kai Liu ,  Jianping Wang

IPC: G01R31/08 ,  H02H7/26 ,  G01R31/11 ,  G01R23/167 ,  H02H1/00 ,  H02H3/44 ,  G01R31/40

Abstract: There is provided mechanisms for travelling wave protection of a transmission line. A method includes performing high-pass filtering of a current and/or voltage measurement of a transmission line so as to detect fault-caused high-frequency components of the current and/or voltage measurement. The method includes providing a result of the high-pass filtering as input to a trip decision maker performing travelling wave detection.

公开(公告)号：US10725073B2

公开(公告)日：2020-07-28

申请号：US15243713

申请日：2016-08-22

Applicant: ABB Power Grids Switzerland AG

Inventor： Xun Gu ,  Sergio Vincenzo Marchese ,  Klaus Bohnert ,  Andreas Frank

IPC: G01R15/24 ,  G01D5/26 ,  G01D5/353

Abstract: An interferometric sensor and related methods are provided, with a sensing element whereby a measurand induces a relative phase shift between two waves, at least one detector measuring an interference signal between the two waves, and further including a phase shift detection unit having as input the interference signal and determining a first measure representative of the principal value of the relative phase shift, and a contrast detection unit having as input the interference signal for determining a second measure representative of the cross-correlation between the two waves, and a further a processing unit for converting the first and second measures to a measurand value.

公开(公告)号：US10720291B2

公开(公告)日：2020-07-21

申请号：US16285882

申请日：2019-02-26

Applicant: ABB Power Grids Switzerland AG

Inventor： Hauke Peters ,  Horst Schalber ,  Michael Mann ,  Ralph Uhl

IPC: H01H1/38 ,  H01H3/30 ,  H01H5/06 ,  H01H31/00 ,  H01H33/12 ,  H01H33/40

Abstract: A switch including a housing, a first contact arrangement having a first commutation contact element and a first contact, a second contact arrangement having a second commutation contact element and a second contact, and also a nominal contact arrangement. The first commutation contact element and the second commutation contact element form a snap-action connection with one another in the closed position of the commutation contact element. When the switch is closed, a distance between the first contact and the second contact is smaller than a distance between the first commutation contact element and the second commutation contact element in the direction of the axis.

公开(公告)号：US10699862B2

公开(公告)日：2020-06-30

申请号：US16253367

申请日：2019-01-22

Applicant: ABB Power Grids Switzerland AG

Inventor： Bernardo Galletti ,  Manuel Gotti ,  Markus Bujotzek ,  Martin Seeger

IPC: H01H33/70 ,  H01H33/91

Abstract: A gas-insulated high-voltage switching device which includes an arcing contact arrangement having a first arcing zone member and a second arcing zone member that are movable relative to one another along an axis. An auxiliary nozzle surrounds at least a part of a second arcing contact unit and has an auxiliary nozzle throat having an axial extension and allowing passage at least of an end of the first arcing contact unit. A main nozzle throat has an axial extension sideways of the auxiliary nozzle throat and allows passage at least of the end of the first arcing contact unit. A cross-sectional area of the main nozzle throat is substantially decreasing in the direction away from the auxiliary nozzle throat so as to form a substantially converging duct for the flow of an arc-extinguishing gas.

公开(公告)号：US20200161871A1

公开(公告)日：2020-05-21

申请号：US16690178

申请日：2019-11-21

Applicant: ABB Power Grids Switzerland AG

Inventor： Susanne Schmitt ,  Marco Giuntoli

IPC: H02J4/00 ,  H02J5/00 ,  H02J3/00 ,  G05B13/04

Abstract: A network system includes a hybrid AC/DC-grid and a network control component. The hybrid AC/DC-grid includes an AC grid; a DC grid; and at least one converter configured to connect the AC grid with the DC grid. The network control component is configured to control the hybrid AC/DC-grid by applying a full non-linear security-constrained optimal power flow model.

公开(公告)号：US20220150698A1

公开(公告)日：2022-05-12

申请号：US17438803

申请日：2020-03-11

Applicant: ABB Power Grids Switzerland AG

Inventor： Zhibo PANG ,  Michele LUVISOTTO ,  Fei PAN ,  Ming XIAO ,  Roger JANSSON

IPC: H04W12/065 ,  H04W12/03 ,  H04W12/122 ,  H04L5/00 ,  H04B7/06

Abstract: Communication method (100) using OFDM (Orthogonal Frequency Division Multiplexing) comprising transmitting and receiving packets between a first node and at least one second node, where each packet comprises a preamble and payload data. The method is performed by the first node and comprises: receiving (114) packets from the at least one second node, and authenticating (112) the at least one second node based on physical layer characteristics, i.e. on CSI (Channel State Information). Especially, the authenticating (112) is based on a plurality of preambles, which) are extracted from a group of consecutively received packets.