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公开(公告)号：US11456680B2
公开(公告)日：2022-09-27
申请号：US17244178
申请日：2021-04-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Huazhen Chai , Mustansir Kheraluwala
Abstract: A power system includes an inverter that convert a DC voltage to a three-phase alternating current (AC) voltage. One or more switch drivers generate a pulse width modulation (PWM) drive signal that drives the inverter. The power system further includes a controller that determines a modulation index associated with the PWM drive signal and injects a harmonic into the PWM drive signal in response to the modulation index exceeding a modulation index threshold value.
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公开(公告)号：US11121773B2
公开(公告)日：2021-09-14
申请号：US16791034
申请日：2020-02-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Miles , Christopher J. Courtney , Michael C. Harke , Mustansir Kheraluwala
Abstract: Provided are embodiments of a system for split power-control electronics with fiber-optic multiplexing. The system includes one or more power electronics modules configured to provide power to a load, and a control card configured to control the one or more power electronics modules. The system also includes a control module configured to receive and process the control card, and one or more connections, the one or more connections configured to connect a control module to the one or more power electronics modules. Also provided are embodiments of a method for operating power electronics modules in a redundant mode.
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公开(公告)号：US10892082B2
公开(公告)日：2021-01-12
申请号：US15839628
申请日：2017-12-12
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Mark W. Metzler , Debabrata Pal , Mustansir Kheraluwala , Charles Patrick Shepard
Abstract: An inductor housing for housing an inductor having a core and a winding includes an outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall and the third wall at least partially define an annular cavity configured to receive the inductor. The inductor housing further includes an attachment feature configured to couple the inductor housing to a secondary housing. The inductor is configured to be enclosed within the annular cavity and the secondary housing, and coolant from a coolant supply is configured to flow past the annular cavity and contact the winding of the inductor.
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公开(公告)号：US20190006096A1
公开(公告)日：2019-01-03
申请号：US15640884
申请日：2017-07-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Jacek F. Gieras , Gregory I. Rozman , Mustansir Kheraluwala
Abstract: A transformer-inductor assembly includes a core, a primary winding, and a secondary winding. The primary winding is wrapped about the core. The secondary winding is wrapped about the primary winding. One or more ferromagnetic bars per phase are arranged between the secondary winding and the primary winding to control the inductance to the transformer-inductor assembly secondary winding. An electrical system including the transformer-inductor assembly and method of transforming voltage of alternating current using the transformer-inductor assembly are also described.
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公开(公告)号：US20170365993A1
公开(公告)日：2017-12-21
申请号：US15182782
申请日：2016-06-15
Applicant: Hamilton Sundstrand Corporation
Inventor： Carl A. Wagner , Mustansir Kheraluwala
CPC classification number: H02H7/06 , B60R16/03 , B64D41/00 , B64D2221/00 , H02H7/122 , H02M5/458 , H02P9/006 , H02P9/10 , H02P9/14 , H02P9/305 , H02P2101/30
Abstract: A variable-speed constant-frequency (VSCF) power converter includes a generator control operable to regulate an output voltage of a variable frequency generator at a variable frequency. The VSCF power generator also includes an inverter control operable to regulate a VSCF output voltage at a point-of-regulation at a constant frequency, where the generator control and the inverter control independently control a main line contactor of the point-of-regulation to provide redundant fault protection for an aircraft use.
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Patent Agency Ranking
公开(公告)号：US09555711B2
公开(公告)日：2017-01-31
申请号：US14295266
申请日：2014-06-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White , Mustansir Kheraluwala , Richard A. Himmelmann
Abstract: A power converter includes a first set of transistors electrically connected in series, a second set of transistors electrically connected in series, and an AC link. The second set of transistors is electrically connected in parallel with the first set of transistors to form an H-bridge. The AC link is electrically connected between the first and second sets of transistors. A plurality of H-bridges are connected in parallel and a three-wire DC bus is electrically connected to the H-bridges.
Abstract translation: 电力转换器包括串联电连接的第一组晶体管，串联电连接的第二组晶体管和AC连接。 第二组晶体管与第一组晶体管并联电连接以形成H桥。 AC链路电连接在第一和第二组晶体管之间。 多个H桥并联连接，三线直流母线与H桥电连接。
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公开(公告)号：US09435264B2
公开(公告)日：2016-09-06
申请号：US14282312
申请日：2014-05-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Huazhen Chai , Adam M. White , Mustansir Kheraluwala
Abstract: A thermal stress reduction method includes ramping an electric power generator to start an aircraft engine, for a time period associated with the aircraft engine start sequence toggling a three-level inverter switch array to a three-level pulse width modulation mode, determining if a first time interval in the three-level pulse width modulation mode exceeded a predetermined three-level pulse width modulation mode interval, in response to the first time interval exceeding the three-level pulse width modulation mode interval, toggling the three-level inverter switch array to a two-level pulse width modulation mode, determining if a second time interval in the two-level pulse width modulation mode exceeded a predetermined two-level pulse width modulation mode interval and in response to the second time interval exceeding the two-level pulse width modulation mode interval, toggling the three-level inverter switch array to the three-level pulse width modulation mode.
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公开(公告)号：US09236812B2
公开(公告)日：2016-01-12
申请号：US14148967
申请日：2014-01-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam Michael White , Waleed M. Said , Mustansir Kheraluwala
CPC classification number: H02M7/2173 , H02M1/10 , H02M3/285 , H02M7/06 , H02M7/21 , H02M7/217 , H02M7/2176 , H02M7/219 , H02M2001/0074 , H02M2001/0083
Abstract: A universal AC to DC converter may be configured to convert alternating current (AC) to direct current (DC), such as for use in aerospace applications. The disclosure relates to a single universal power electronic converter capable of converting an AC input voltage, such as a line to neutral input voltage of either 115 Vrms or 230 Vrms nominal to 28 V DC.
Abstract translation: 通用AC-DC转换器可以被配置为将交流（AC）转换为直流（DC），例如用于航空航天应用。 本公开涉及一种单通用电力电子转换器，其能够将AC输入电压（例如115Vrms或230Vrms）的线路输入电压转换为28V DC。
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公开(公告)号：US20140253005A1
公开(公告)日：2014-09-11
申请号：US14282312
申请日：2014-05-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Huazhen Chai , Adam M. White , Mustansir Kheraluwala
IPC: H02P9/08
Abstract: A thermal stress reduction method includes ramping an electric power generator to start an aircraft engine, for a time period associated with the aircraft engine start sequence toggling a three-level inverter switch array to a three-level pulse width modulation mode, determining if a first time interval in the three-level pulse width modulation mode exceeded a predetermined three-level pulse width modulation mode interval, in response to the first time interval exceeding the three-level pulse width modulation mode interval, toggling the three-level inverter switch array to a two-level pulse width modulation mode, determining if a second time interval in the two-level pulse width modulation mode exceeded a predetermined two-level pulse width modulation mode interval and in response to the second time interval exceeding the two-level pulse width modulation mode interval, toggling the three-level inverter switch array to the three-level pulse width modulation mode.
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公开(公告)号：US11611287B2
公开(公告)日：2023-03-21
申请号：US17173070
申请日：2021-02-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Dwight D. Schmitt , Mustansir Kheraluwala , Eric A. Carter
Abstract: A system comprises a first 3-phase rectifier having a positive DC lead and a negative DC lead and a second 3-phase rectifier having a positive DC lead and a negative DC lead. The system also includes a 4-phase, 3-level inverter connected to the first and second 3-phase rectifiers. A method comprises receiving variable frequency, 3-phase power from a first generator, receiving variable frequency, 3-phase power from a second generator, rectifying the variable frequency, 3-phase power from each of the first and second generators into DC power. And inverting the DC power into 4-phase, constant frequency power for powering a load.
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