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公开(公告)号：US12261560B2
公开(公告)日：2025-03-25
申请号：US18311661
申请日：2023-05-03
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A system includes a main power source configured to provide power to at least one pulsed electrical load. The system also includes a propulsion converter configured to drive a propulsion motor. The system further includes a controllable-field induction electrical machine coupled to the at least one pulsed load. The controllable-field induction electrical machine is configured to suppress one or more propulsion current harmonics generated by the propulsion converter that affect the at least one pulsed load.
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公开(公告)号：US11444609B2
公开(公告)日：2022-09-13
申请号：US15929473
申请日：2020-05-04
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov , Eric J. Stich
Abstract: A system includes a prime mover configured to rotate a shaft. The system also includes a wound rotor induction generator (WRIG). The WRIG includes a rotor coupled to the shaft of the prime mover and configured to rotate when the shaft rotates, where the rotor includes a rotor winding. The WRIG also includes a stator winding electrically connected to a utility source and a load. When the stator winding receives first power from the utility source, the WRIG is configured to transform at least one of a voltage and a frequency of the first power before outputting at least a portion of the first power to the load. When the stator winding does not receive the first power from the utility source, the WRIG is configured to generate second power due to kinetic energy of the rotor and output at least a portion of the second power to the load.
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公开(公告)号：US20210351588A1
公开(公告)日：2021-11-11
申请号：US15929541
申请日：2020-05-08
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A transformer includes a magnetic core having multiple limbs. The transformer also includes a direct current (DC) bias winding wound around a specified one of the limbs. The transformer further includes a DC amplifier electrically connected to the DC bias winding. The DC amplifier is configured to receive a first signal associated with a load output current or voltage. The DC amplifier is also configured to determine an amount of a current for the DC bias winding based on the first signal. The DC amplifier is further configured to send the determined amount of current through the DC bias winding.
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公开(公告)号：US11418031B2
公开(公告)日：2022-08-16
申请号：US15929541
申请日：2020-05-08
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A transformer includes a magnetic core having multiple limbs. The transformer also includes a direct current (DC) bias winding wound around a specified one of the limbs. The transformer further includes a DC amplifier electrically connected to the DC bias winding. The DC amplifier is configured to receive a first signal associated with a load output current or voltage. The DC amplifier is also configured to determine an amount of a current for the DC bias winding based on the first signal. The DC amplifier is further configured to send the determined amount of current through the DC bias winding.
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公开(公告)号：US09911532B2
公开(公告)日：2018-03-06
申请号：US14467299
申请日：2014-08-25
Applicant: Raytheon Company
Inventor： Anurag Gupta , Robert R. Lopez , Stephen B. Kuznetsov
Abstract: A high density capacitor comprises a housing having a cavity, and a plurality of capacitors forming at least one capacitor bank disposed in the housing cavity. A native cooling fluid is disposed in the cavity, and a heat exchanger is coupled to the housing. A pump is configured to circulate the native cooling fluid from the cavity, through the heat exchanger, through the spacings along an outer surface of each of the capacitors to cool the capacitors using forced convection. The heat exchanger is configured to communicate a secondary fluid through the heat exchanger and draw heat from the native cooling fluid flowing through the heat exchanger. The heat exchanger may have a plenum having a plurality of openings configured to dispense the native cooling fluid from the heat exchanger proximate the at least one capacitor bank.
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Patent Agency Ranking
公开(公告)号：US12212144B2
公开(公告)日：2025-01-28
申请号：US18303418
申请日：2023-04-19
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A system includes multiple electrical nodes connected in series to a primary power source via transmission lines. Each node includes a power converter that can receive first power from the primary power source or another upstream node. The power converter can change a voltage level and/or a frequency of the first power. Each node also includes a high-speed synchronous rotating machine (HSRM), which includes an inertial storage flywheel, a rotating excitation assembly, stator windings, and a synchronous motor coupled to an induction generator. The HSRM can boost a voltage level between an input and output to compensate for a voltage drop of the first power. At least one of the nodes further includes an inductive power coupler to electrically couple the node to a mobile power source that provides second power to the node and receives a portion of the first power from the node using contactless inductive power transfer. The system includes a combination of AC and DC power transmission techniques and associated bidirectional power converters.
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公开(公告)号：US12136844B2
公开(公告)日：2024-11-05
申请号：US17557758
申请日：2021-12-21
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A stored energy power source uses a wound-rotor induction machine (WRIM) to receive energy from an external source, store the energy in N energy storage elements (ESEs) via tertiary windings, and discharge the ESEs to deliver energy via a secondary winding to a load producing output. Each discharging ESE contributes to a total flux at the secondary winding to sum the individual ESEs voltages. These voltages can be stepped up or down by a transformation ratio between the secondary winding and each of the tertiary windings. A flywheel may be coupled to the secondary to store and delivery energy. Load factor power control can be used to stabilize the output voltage. The source may be configured to allow for the bi-directional flow of energy between an external power source, the ESEs, the flywheel and the load. The WRIM provides a safe, reliable and efficient system to provide high-level AC and DC output voltages.
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公开(公告)号：US20240171044A1
公开(公告)日：2024-05-23
申请号：US17992728
申请日：2022-11-22
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
Abstract: A two-phased liquid-cooled AC rotating electrical includes a plurality of cooling circuits that recirculate and transition respective engineered liquids between liquid and vapor states around closed-loop fluid paths to cool a plurality of machine components e.g., hollow conductor rotor and stator windings and a magnetic stator core. A portion of each fluid path is either integrated with or in thermal contact with its component. The engineered liquids are evaporated within the respective portions of the fluid paths to hold the operating temperatures at or near the respective and different phase transition temperatures.
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公开(公告)号：US20240057304A1
公开(公告)日：2024-02-15
申请号：US17885400
申请日：2022-08-10
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
IPC: H05K7/20 , H01L23/427 , H01F27/18
CPC classification number: H05K7/20936 , H01L23/427 , H05K7/20309 , H05K7/2039 , H05K7/20327 , H05K7/20318 , H05K7/209 , H01F27/18
Abstract: A two-phased liquid-cooled electrical power apparatus includes a plurality of cooling circuits that recirculate and transition respective engineered fluids between liquid and vapor states around closed-loop fluid paths to cool a plurality of devices. A portion of each fluid path is either integrated with or in thermal contact with its device. The engineered fluids are evaporated within the respective portions of the fluid paths to hold the operating temperatures at or near the respective and different phase transition temperatures. The cooling circuits may be used to maintain different operating temperatures of hollow primary and secondary winding coils in a power transformer, of parallel connect hollow winding excitation coils and a common magnetic core in an electrical reactor, of power semiconductor devices mounted on heat sink(s) in which the fluid paths are embedded or power semiconductor devices in which the respective fluid paths pass through the devices.
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公开(公告)号：US20230216302A1
公开(公告)日：2023-07-06
申请号：US17567611
申请日：2022-01-03
Applicant: Raytheon Company
Inventor： Stephen B. Kuznetsov
CPC classification number: H02J3/30 , H02J15/007 , H02K7/025
Abstract: A stored energy power source uses a wound-rotor induction machine (WRIM) to receive energy from a prime mover via a rotating shaft, provide magnetization reactive energy from a self-excited AC capacitor bank, store the energy in N energy storage elements (ESEs) via tertiary windings, and discharge the ESEs to deliver energy via a secondary winding to a load producing output. Each discharging ESE contributes to a total flux at the secondary winding to sum the individual ESEs voltages. These voltages can be stepped up or down by a transformation ratio between the secondary winding and each of the tertiary windings. A flywheel may be coupled to the shaft to store and delivery kinetic energy. Load factor power control can be used to stabilize the output voltage. The source may be configured to allow for the bi-directional flow of energy between the ESEs, the flywheel and the load. The WRIM provides a safe, reliable and efficient system to provide high-level AC and DC output voltages.
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