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公开(公告)号：US10992190B2
公开(公告)日：2021-04-27
申请号：US16692935
申请日：2019-11-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Gregory I. Rozman
Abstract: A stator for a generator includes a ferromagnetic core with two or more poles arranged about a rotation axis, a direct current (DC) field coil, and four or more alternating current (AC) coils. The DC field coil is wrapped about the pole. A first of the AC coils is wrapped about the pole at a location circumferentially spaced from a second of the AC coils. Generator systems and methods self-exciting synchronous reluctance generators are also described.
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公开(公告)号：US10787967B2
公开(公告)日：2020-09-29
申请号：US14457798
申请日：2014-08-12
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Lubomir A. Ribarov
Abstract: A starter-generator module for a gas turbine engine includes an inner stator portion with an armature defining a rotation axis and an outer rotor portion disposed about the rotation axis. The outer rotor portion includes a permanent magnet and a gear teeth member. The permanent magnet is disposed about the rotation axis and the gear teeth member is defined on the outer rotor portion such that the gear teeth member transmits rotational energy to an accessory gearbox in a start mode and receives rotational energy from the accessory gearbox in a generate mode.
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公开(公告)号：US10566880B2
公开(公告)日：2020-02-18
申请号：US15986860
申请日：2018-05-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Gregory I. Rozman , Steven J. Moss , Jacek F. Gieras
Abstract: An assembly for operating a DC synchronous machine according to an exemplary aspect of the present disclosure includes, among other things, a controller that is configured to determine a position of a rotating portion utilizing a carrier signal, adjust current supply to a field winding, and monitor and adjust operation of the DC synchronous machine based on various electrical parameters relating to the carrier signal. A method for operating a DC synchronous machine is also disclosed.
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公开(公告)号：US20190165645A1
公开(公告)日：2019-05-30
申请号：US15825727
申请日：2017-11-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Lubomir A. Ribarov
Abstract: A kinetic energy storage system is provided. The kinetic energy storage system comprising: a vacuum container enclosing a vacuum chamber; and a flywheel located within the vacuum chamber, the flywheel being configured to convert electrical energy into kinetic energy, wherein the flywheel comprises: a rotor assembly and a stator assembly located within the rotor assembly.
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公开(公告)号：US20180262091A1
公开(公告)日：2018-09-13
申请号：US15456710
申请日：2017-03-13
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Jacek F. Gieras , Gregory I. Rozman
CPC classification number: H02K21/042 , H02K1/223 , H02K1/276 , H02K11/046 , H02K11/33 , H02K21/46 , H02K2213/09 , H02P9/302 , H02P2207/05
Abstract: Embodiments herein relate to a permanent magnet (PM) dynamoelectric machine. The machine includes a drive shaft, a stator assembly having a ferromagnetic stator core, a plurality stator teeth mounted to the stator core with distal ends proximate the inner radial periphery of the stator assembly and a plurality of stator coils mounted between the stator teeth, and a PM rotor assembly with multiple PMs, a ferromagnetic rotor core, a plurality of ferromagnetic rotor teeth mounted to the rotor core with distal ends proximate an inner periphery of the stator assembly separated by an air gap, and at least one control coil, the at least one control coil wrapped about a saturable region of each the rotor teeth. Each saturable region of the rotor teeth is operable to divert air gap magnetic flux (Φg) generated by the PMs across the air gap through the distal ends of the rotor teeth.
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Patent Agency Ranking
公开(公告)号：US10075106B2
公开(公告)日：2018-09-11
申请号：US14683468
申请日：2015-04-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Gregory I. Rozman , Jacek F. Gieras , Steven J. Moss
CPC classification number: H02P6/04 , H02K19/365 , H02P6/28 , H02P9/14 , H02P9/30 , H02P2101/30
Abstract: An assembly for a direct current (DC) synchronous machine, according to an exemplary aspect of the present disclosure includes, among other things, a stationary portion including a direct current (DC) armature winding and a rotating portion including alternating current (AC) field winding configured to supply DC output to the DC armature winding. A rotating inverter is configured to selectively communicate current to the AC field winding such that a frequency of the current is adjusted to approach synchronization with a position of the rotating portion. A method for generating DC output from a DC synchronous machine is also disclosed.
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公开(公告)号：US20180205302A1
公开(公告)日：2018-07-19
申请号：US15410291
申请日：2017-01-19
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras
CPC classification number: H02K21/30 , H02K1/02 , H02K1/146 , H02K1/223 , H02K1/2786 , H02K3/02 , H02K3/12 , H02K3/325 , H02K17/26 , H02K21/46 , H02K2213/03
Abstract: An electric machine is provided and includes a stator that includes teeth, conductive windings configured to be wound about the teeth and a rotor rotatable about the stator. The rotor includes an annular core defining first slots along a circumferential dimension and one or more second slots along the circumferential dimension between neighboring first slots, permanent magnets disposable in the first slots and cage windings disposable in the second slots.
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公开(公告)号：US20180191229A1
公开(公告)日：2018-07-05
申请号：US15397354
申请日：2017-01-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Gregory I. Rozman , Steven J. Moss , Jacek F. Gieras
CPC classification number: H02K11/046 , H02K3/28 , H02K19/365 , H02M7/25 , H02M2001/0077 , H02P9/48
Abstract: An electric power generating system (EPGS) may comprise a permanent magnet generator (PMG) comprising a rotor comprising a permanent magnet, and a stator comprising a plurality of armature windings configured to output a plurality of three-phase voltages, and a plurality of rectifiers corresponding to the plurality of armature windings and configured to rectify the plurality of three-phase voltages, wherein the plurality of rectifiers are connected in series.
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公开(公告)号：US20180175680A1
公开(公告)日：2018-06-21
申请号：US15386094
申请日：2016-12-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Gregory I. Rozman
CPC classification number: H02K1/223 , H02K3/04 , H02K21/14 , H02K21/46 , H02P1/24 , H02P1/26 , H02P6/20 , H02P2207/01 , H02P2207/05
Abstract: A rotor of line start permanent magnet synchronous motor is provided. The rotor includes bars of cage windings. The rotor includes an additional inductance coupled to the cage windings and located on a first end of the bars. The rotor includes an end ring located on a second end of the bars. The additional inductance provides a reactance to reduce a starting current during an asynchronous starting of the line start permanent magnet synchronous motor.
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公开(公告)号：US20180131304A1
公开(公告)日：2018-05-10
申请号：US15348313
申请日：2016-11-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Gregory I. Rozman , Steven J. Moss
CPC classification number: H02P9/48 , H02K1/165 , H02K3/12 , H02K3/28 , H02K19/34 , H02K21/48 , H02M7/00
Abstract: An electric power system (EPS) may comprise a modular multilevel converter (MMC) and a synchronous generator in electronic communication with the MMC. The synchronous generator may comprise a stator comprising inner slots and outer slots. First, second, and third windings may be disposed in the inner slots configured to receive first, second, and third phase signals, respectively. The first, second, and third windings may each split into two arms, each arm comprising an additional winding disposed in the outer slots of the stator.
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