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公开(公告)号：US10910827B2
公开(公告)日：2021-02-02
申请号：US15915151
申请日：2018-03-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Virgilio Valdivia Guerrero , Fabien Dubois , Laura Albiol-Tendillo , Mustansir Kheraluwala
Abstract: A solid state power controller, SSPC, having an input to receive supply current and an output for providing output current to a load in response to connection to the power supply, the solid state power controller further comprising at least one solid state switch and a controller to limit the power dissipated in the solid state power switch based on a measured voltage across the solid state switch and a predetermined power dissipation threshold for the SSPC to adjust the output current or voltage control signal of the solid state switch such that the actual power dissipation of the SSPC does not exceed the threshold.
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公开(公告)号：US09812243B2
公开(公告)日：2017-11-07
申请号：US14688892
申请日：2015-04-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White , Mustansir Kheraluwala , Frank Z. Feng , Kris H. Campbell , Charles Shepard
CPC classification number: H01F27/18 , H01F27/00 , H01F27/2876 , H01F27/325
Abstract: A transformer assembly includes a housing with a sealed housing interior, a transformer disposed within the housing interior and having a core with windings wrapped about the core, and a condenser mounted to the housing. The condenser is in fluid communication with the housing interior. A surface of the windings bounds a coolant channel extending between the windings and the condenser to convey coolant of a first phase to the condenser and receive coolant of a second phase from the condenser.
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公开(公告)号：US09435263B2
公开(公告)日：2016-09-06
申请号：US14282273
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.
Abstract translation: 一种热应力降低方法包括使发电机起动飞机发动机，与飞机发动机起动顺序相关联的时间段将三电平逆变器开关阵列切换到三电平脉冲宽度调制模式，确定第一 三电平脉冲宽度调制模式中的时间间隔超过预定的三电平脉冲宽度调制模式间隔，响应于超过三电平脉冲宽度调制模式间隔的第一时间间隔，将三电平逆变器开关阵列切换到 两级脉宽调制模式，确定二电平脉宽调制模式中的第二时间间隔是否超过预定的两级脉宽调制模式间隔，并且响应于超过两级脉冲宽度的第二时间间隔 调制模式间隔，将三电平逆变器开关阵列切换到三电平脉宽调制模式。
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4.发明申请公开(公告)号：US20140268967A1
公开(公告)日：2014-09-18
申请号：US13836662
申请日：2013-03-15
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Adam Michael White , Mustansir Kheraluwala , Steven A. Davidson
IPC: H02M7/538
Abstract: A multi-level power converter system includes a multi-level power converter configured to synthesize at least three direct current (DC) voltages into an alternating current (AC) output voltage, and includes a plurality of transistors. A controller generates pulse-width modulation (PWM) signals used to control a state of the plurality of transistors of the multi-level converter by comparing first and second carrier signals to a reference signals, wherein a period of the first and second carrier signals is randomly varied from a nominal period.
Abstract translation: 多级功率转换器系统包括被配置为将至少三个直流（DC）电压合成为交流（AC）输出电压的多电平功率转换器，并且包括多个晶体管。 控制器通过将第一和第二载波信号与参考信号进行比较来产生用于控制多电平转换器的多个晶体管的状态的脉冲宽度调制（PWM）信号，其中第一和第二载波信号的周期是 从名义期间随机变化。
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公开(公告)号：US20220352836A1
公开(公告)日：2022-11-03
申请号：US17377571
申请日：2021-07-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Tyler W. Hayes , Jon Barry Althof , Aaron M. Finke , Mustansir Kheraluwala
Abstract: An engine system includes a turbine engine having a high pressure spool and a low pressure spool. A transmission includes an input shaft connected to one of the high pressure spool and the low pressure spool, and an output shaft. A clutch is arranged between the input shaft and the output shaft. A generator is connected to the output shaft. A clutch controller activates the clutch when one of the high pressure spool and the low pressure spool, and the generator are operating at a selected speed range.
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Patent Agency Ranking
公开(公告)号：US11215477B2
公开(公告)日：2022-01-04
申请号：US16815639
申请日：2020-03-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Patrick B. Palanca , Mustansir Kheraluwala
Abstract: A motor control system can include a resolver configured to output resolver signals and a plurality of motor drives, each motor drive configured to drive a segment of a segmented motor. A resolver signal splitter can be connected between the resolver and the plurality of motor drives to split the resolver signals from the resolver to provide each motor drive with the resolver signals.
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公开(公告)号：US20210351689A1
公开(公告)日：2021-11-11
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：US10855214B2
公开(公告)日：2020-12-01
申请号：US16379382
申请日：2019-04-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Mustansir Kheraluwala , Xin Wu
IPC: H02P9/00 , H02P9/08 , H02J7/14 , B64D27/24 , F02C7/268 , B64D35/02 , H02P101/30 , H02P101/25
Abstract: Disclosed is an energy management system for an aircraft. The system includes an electric machine including a stator surrounding a rotor having permanent magnets disposed therein, wherein rotation of the rotor causes an alternating current to be generated in windings of the stator that is uncontrolled. The system includes an electric propulsion system. The system includes a bidirectional power converter having a first side connected to the electric machine and a second side galvanically isolated from the first side and connected to the electric propulsion system. The bidirectional power converter includes a switching network that regulates power associated with the electric machine and power transfer across the bidirectional power converter. The switching network is operable to satisfy collective power flows of the electric machine and the electric propulsion system through the bidirectional power converter.
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公开(公告)号：US20200328706A1
公开(公告)日：2020-10-15
申请号：US16379382
申请日：2019-04-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Mustansir Kheraluwala , Xin Wu
Abstract: Disclosed is an energy management system for an aircraft. The system includes an electric machine including a stator surrounding a rotor having permanent magnets disposed therein, wherein rotation of the rotor causes an alternating current to be generated in windings of the stator that is uncontrolled. The system includes an electric propulsion system. The system includes a bidirectional power converter having a first side connected to the electric machine and a second side galvanically isolated from the first side and connected to the electric propulsion system. The bidirectional power converter includes a switching network that regulates power associated with the electric machine and power transfer across the bidirectional power converter. The switching network is operable to satisfy collective power flows of the electric machine and the electric propulsion system through the bidirectional power converter.
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10.发明授权公开(公告)号：US09270168B2
公开(公告)日：2016-02-23
申请号：US13836662
申请日：2013-03-15
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam Michael White , Mustansir Kheraluwala , Steven A. Davidson
Abstract: A multi-level power converter system includes a multi-level power converter configured to synthesize at least three direct current (DC) voltages into an alternating current (AC) output voltage, and includes a plurality of transistors. A controller generates pulse-width modulation (PWM) signals used to control a state of the plurality of transistors of the multi-level converter by comparing first and second carrier signals to a reference signals, wherein a period of the first and second carrier signals is randomly varied from a nominal period.
Abstract translation: 多级功率转换器系统包括被配置为将至少三个直流（DC）电压合成为交流（AC）输出电压的多电平功率转换器，并且包括多个晶体管。 控制器通过将第一和第二载波信号与参考信号进行比较来产生用于控制多电平转换器的多个晶体管的状态的脉冲宽度调制（PWM）信号，其中第一和第二载波信号的周期是 从名义期间随机变化。
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