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公开(公告)号：US11728649B2
公开(公告)日：2023-08-15
申请号：US17351960
申请日：2021-06-18
Applicant: Smart Wires Inc.
Inventor： Leonard J. Kovalsky , Hamed Khalilinia , Niloofar Torabi , Michael T. Garrison Stuber , Sana Tayyab , Adeel Ahmad Khan , Haroon Inam
CPC classification number: H02J3/18 , G01R31/086 , H02H1/0007 , H02J13/00019
Abstract: Disclosed is a reactance-injecting module and its method of use to balance the currents among the phases of polyphase electric power transmission lines or to manage power flow among alternate paths, where the reactance-injecting module has high-speed, dedicated communication links to enable the immediate removal or reduction of injected reactance from all phases of a phase balancing cluster when a fault is detected on any one of the multiple phases. The reactance-injecting module may communicate information on a detected fault to the other reactance-injecting modules of the phase balancing cluster within 10 microseconds after the fault is detected to allow the phase balancing cluster to eliminate injected reactance from all phases within a time that is short compared to a cycle of the alternating current, such as 1 millisecond after the fault is detected. This provides extremely fast neutralization of injected reactance to minimize interference with fault localization analyses.
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公开(公告)号：US11594361B1
公开(公告)日：2023-02-28
申请号：US16444880
申请日：2019-06-18
Applicant: Smart Wires Inc.
Inventor： Ali Farahani , Haroon Inam
Abstract: A passive cooling topology and a manufacturing method are described for a transformer to achieve improved power density at a light weight. No fans or cooling liquids are required. Vertical planar faces are used for the central core element, the primary and secondary windings, the outer core element, and a finned heat sink. The primary flow for thermal cooling is radial, through the vertical planar faces. The transformer may be configured to float at the potential of a high voltage transmission line, leading to improved thermal characteristics. Eddy currents are reduced using repeating air gaps in the central core, and a continuously transposed cable comprising multiple strands per turn in the secondary winding. Air pockets in the windings are eliminated using a potting resin and vacuum pressure impregnation (VPI).
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63.发明授权公开(公告)号：US11539211B2
公开(公告)日：2022-12-27
申请号：US16838720
申请日：2020-04-02
Applicant: Smart Wires Inc.
Inventor： Paul Harrington
IPC: H02J3/24 , H02J3/18 , G05B19/042 , H02J3/28
Abstract: An intelligent impedance injection module is for use with transmission lines in a power grid. The intelligent impedance injection module has a plurality of transformer-less impedance injector units and a controller. The controller changes injector gain of the impedance injector units to compensate for current swings in a transmission line.
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公开(公告)号：US11469015B2
公开(公告)日：2022-10-11
申请号：US17197627
申请日：2021-03-10
Applicant: Smart Wires Inc.
Inventor： Liyu Cao , Haroon Inam , Amrit Iyer , Hamed Khalilinia , Zbigniew Wolanski
Abstract: A filter network is insertable into a power transmission line, to handle disturbances in the power transmission line. A first circuit has an RC network in parallel with a surge arrestor, to bypass high frequency disturbances of the power transmission line. A second circuit has inductors for carrying low-frequency power to and from impedance injection units.
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65.发明授权公开(公告)号：US11443881B1
公开(公告)日：2022-09-13
申请号：US16521144
申请日：2019-07-24
Applicant: Smart Wires Inc.
Inventor： Ali Farahani
Abstract: Sheet metal construction is described for achieving high strength at low weight for a power reactor and for an impedance injection module incorporating the power reactor. Clamping plates are used to retain the core and the windings of the reactor. Integrated features of a specialized frame of the impedance injection module include flanges for structural rigidity, a convenient yoke plate for lifting by crane, feet for mounting insulators, and sufficient strength to maintain mechanical integrity during normal operation and also during fault conditions. The specialized frame provides a light weight assembly suitable for mounting on power transmission lines as well as on ground assemblies. The specialized frame can reduce the cost of the total enclosure to around 25% of the cost and 50% of the weight of an equivalent conventional enclosure. An insulation topology is also described.
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Patent Agency Ranking
公开(公告)号：US20210296930A1
公开(公告)日：2021-09-23
申请号：US17249281
申请日：2021-02-25
Applicant: Smart Wires Inc.
Inventor： Govind Chavan , Amrit Iyer , Haroon Inam , Faisal Masood , Abdul Rahman , Vinod Babu
Abstract: A power supply system is operable to harvest power at low and high line currents. A current transformer is arranged to couple to a power transmission line. A current sensor which may be a Rogowski coil is arranged to couple to the power transmission line. Branches of power supply circuitry are connected to a plurality of secondary windings of the current transformer. A control circuit selects one of the branches of power supply circuitry, depending on sensed magnitude of line current, to provide electrical power to an output capacitor. Sufficient stored energy is also provided for performing a backup of operating parameters when the line current reduces to zero.
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公开(公告)号：US10886741B1
公开(公告)日：2021-01-05
申请号：US15849178
申请日：2017-12-20
Applicant: Smart Wires Inc.
Inventor： Govind Chavan , Haroon Inam
Abstract: Methods for damping oscillations in a high voltage power grid, including power distribution and supply systems by distributing a plurality of voltage/impedance injection modules to inject voltages/impedances onto high voltage power transmission lines of the power grid, sensing power oscillations on the high voltage transmission lines, extracting the dominant oscillatory mode or modes of sensed power oscillations on the high voltage transmission lines, and injecting voltages/impedances responsive to at least the most dominant oscillatory mode onto the respective high voltage transmission lines to counteract the respective oscillations.
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公开(公告)号：US10790878B1
公开(公告)日：2020-09-29
申请号：US16209762
申请日：2018-12-04
Applicant: Smart Wires Inc.
Inventor： Michael T. Garrison Stuber , Adeel Ahmad Khan , Haroon Inam
Abstract: Systems and methods for controlling power distribution in a power distribution system are disclosed. The system comprises a first group of impedance injection nodes that includes two or more impedance injection nodes. Each of the impedance injection nodes of the first group is attached to a respective powerline of the power distribution system, and is configured to: respectively receive messages from other impedance injection nodes in the first group sent at different respective time slots, where each of the received messages includes node information of at least one of the other nodes, and broadcast a message to the other nodes in the first group at a time slot that is different from the respective time slots of the other nodes, where the broadcasted message includes node information of the impedance injection node, or node information of the at least one of the other nodes, or both.
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公开(公告)号：US10770870B2
公开(公告)日：2020-09-08
申请号：US16522286
申请日：2019-07-25
Applicant: Smart Wires Inc.
Inventor： Ali Farahani , Ted Bloch-Rubin , Casey Heier , Tarek Khoury , Mark Sanders , Will Schmautz
Abstract: A containerized power flow control system is described, for attachment to a power transmission line or substation. The system includes at least one container that is transportable by road, rail, sea or air. A plurality of identical impedance injection modules is operable while mounted in the container, wherein each of the modules is configurable to inject a pre-determined power control waveform into the power line.
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公开(公告)号：US10756542B2
公开(公告)日：2020-08-25
申请号：US16104778
申请日：2018-08-17
Applicant: Smart Wires Inc.
Inventor： Haroon Inam , Debrup Das , Amrit Iyer , Kamil Bojanczyk
Abstract: A modular power flow control system is described for optimizing power flow control in a multi-phase power transmission system. Identical impedance injection modules are arranged in an m×n matrix, where m is the number of series-connected modules inserted into each phase (forming a leg of the installed bank of modules), and n is the number of parallel-connected legs per phase. Each impedance injection module in a phase is configurable to collectively insert a pre-determined (controllable) power control waveform into the phase to which it is attached. The modular flow control system is agile with respect to configurability, reconfigurability, maintenance, size, weight, and cost.
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