-
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。
-
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.
-
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.
-
公开(公告)号：US10243482B2
公开(公告)日：2019-03-26
申请号：US14330668
申请日：2014-07-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White
Abstract: A phase leg for a multilevel inverter includes a first direct current lead, an outer solid-state switch, an inner solid-state switch, and a midpoint-clamping device. The outer solid-state switch device is connected to the first direct current lead. The inner solid-state switch is connected in series with the outer solid-state switch. The midpoint-clamping device is a bi-directional current flow device connected between a second DC lead and a node between the inner and outer solid-state switches for reducing conduction losses associated with current flowing through the phase leg.
-
公开(公告)号：US09564833B2
公开(公告)日：2017-02-07
申请号：US14295159
申请日：2014-06-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White , Joshua S. Parkin , Christopher J. Courtney
IPC: H02M7/537 , H02M3/325 , H02M7/5387 , H02M7/487 , H02M1/00
CPC classification number: H02M7/537 , H02M3/325 , H02M7/487 , H02M7/5387 , H02M2001/0054 , Y02B70/1491
Abstract: A phase leg for a multilevel inverter includes a positive DC lead, a first outer MOSFET connected to the positive DC lead, a first inner IGBT connected to the first outer MOSFET, a second inner IGBT connected to the first inner IGBT, and a second outer IGBT connected to the second inner IGBT. The first and second outer MOSFETs are superjunction MOSFETs voltage balanced by the first and second IGBTs for reducing voltage stress in the solid-state switch phase leg when the superjunction MOSFET and the IGBT are conducting current from the DC lead to the AC lead.
Abstract translation: 用于多电平逆变器的相支路包括正直流引线，连接到正直流引线的第一外部MOSFET，连接到第一外部MOSFET的第一内部IGBT，连接到第一内部IGBT的第二内部IGBT和第二外部IGBT IGBT连接到第二个内部IGBT。 第一和第二外部MOSFET是由第一和第二IGBT电压平衡的超结MOSFET，用于在超导MOSFET和IGBT正在将电流从DC引线传导到AC引线时，用于降低固态开关相位支路中的电压应力。
-
Patent Agency Ranking
公开(公告)号：US20160294303A1
公开(公告)日：2016-10-06
申请号：US14678334
申请日：2015-04-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White
IPC: H02M7/537
CPC classification number: H02M7/537 , H02M7/487 , H02M2001/0025 , H02M2001/123
Abstract: A method of controlling an inverter includes receiving a target waveform for output voltage of an inverter phase, calculating a phase bias for an inverter phase using the target waveform, biasing the target waveform using the phase bias, and generating a switching device command signal by comparing the biased target waveform to a carrier waveform. The switching device command signal has a switching patter that reduces midpoint current in an inverter input lead and common mode voltage in an inverter output lead.
Abstract translation: 控制逆变器的方法包括接收逆变器相位的输出电压的目标波形，使用目标波形计算逆变器相位的相位偏置，使用相位偏置偏置目标波形，并通过比较产生开关装置指令信号 偏置的目标波形到载波波形。 开关装置指令信号具有减少逆变器输入引线中的中点电流和逆变器输出引线中的共模电压的开关模式。
-
公开(公告)号：US20150349660A1
公开(公告)日：2015-12-03
申请号：US14295159
申请日：2014-06-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White , Joshua S. Parkin , Christopher J. Courtney
IPC: H02M7/537
CPC classification number: H02M7/537 , H02M3/325 , H02M7/487 , H02M7/5387 , H02M2001/0054 , Y02B70/1491
Abstract: A phase leg for a multilevel inverter includes a positive DC lead, a first outer MOSFET connected to the positive DC lead, a first inner IGBT connected to the first outer MOSFET, a second inner IGBT connected to the first inner IGBT, and a second outer IGBT connected to the second inner IGBT. The first and second outer MOSFETs are superjunction MOSFETs voltage balanced by the first and second IGBTs for reducing voltage stress in the solid-state switch phase leg when the superjunction MOSFET and the IGBT are conducting current from the DC lead to the AC lead.
Abstract translation: 用于多电平逆变器的相支路包括正直流引线，连接到正直流引线的第一外部MOSFET，连接到第一外部MOSFET的第一内部IGBT，连接到第一内部IGBT的第二内部IGBT和第二外部IGBT IGBT连接到第二个内部IGBT。 第一和第二外部MOSFET是由第一和第二IGBT电压平衡的超结MOSFET，用于在超导MOSFET和IGBT正在将电流从DC引线传导到AC引线时，用于降低固态开关相位支路中的电压应力。
-
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.
-
公开(公告)号：US09742311B2
公开(公告)日：2017-08-22
申请号：US14874116
申请日：2015-10-02
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White
CPC classification number: H02M7/537 , H02M1/14 , H02M7/487 , H02M7/5395 , H02M2001/0025
Abstract: A method of controlling an inverter includes receiving output voltage target waveforms for phases of an inverter, generating uncompensated midpoint duty cycle waveforms for the inverter phases, selecting an uncompensated midpoint duty cycle waveform for one of the inverter phases based on the magnitudes of the uncompensated midpoint duty cycle waveforms, and applying a compensation signal to the selected uncompensated midpoint duty cycle waveform. An inverter controller and inverter employ the method for generating switch command signals for solid-state switch devices of the inverter.
-
公开(公告)号：US09634579B2
公开(公告)日：2017-04-25
申请号：US14678334
申请日：2015-04-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam M. White
CPC classification number: H02M7/537 , H02M7/487 , H02M2001/0025 , H02M2001/123
Abstract: A method of controlling an inverter includes receiving a target waveform for output voltage of an inverter phase, calculating a phase bias for an inverter phase using the target waveform, biasing the target waveform using the phase bias, and generating a switching device command signal by comparing the biased target waveform to a carrier waveform. The switching device command signal has a switching patter that reduces midpoint current in an inverter input lead and common mode voltage in an inverter output lead.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.013 seconds)
