-
公开(公告)号：US11588396B2
公开(公告)日：2023-02-21
申请号：US16791593
申请日：2020-02-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam Michael White , Dwight D. Schmitt
Abstract: A method of operating a power conversion system including converting variable frequency AC voltage to constant frequency AC voltage by a power converter, setting a first peak current reset threshold above operating currents previously observed during steady state short circuit current regulation in by a controller of the power converter, setting a second peak current reset threshold at a current lower than the previously observed steady state short-circuit regulation point observed during previous operation during steady state short circuit current regulation by the controllers of the power converter, resetting inverter converter AC output regulating voltage to 0 volts, and ramping AC output regulating voltage back up into steady-state operation when the second a peak current reset threshold is exceeded.
-
公开(公告)号：US10746803B2
公开(公告)日：2020-08-18
申请号：US16212192
申请日：2018-12-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Huazhen Chai , Dwight D. Schmitt
Abstract: A fault detection method includes, at a generator module having a generator, a rectifier connected to the generator by phase leads, and an inverter connected to the rectifier by a direct current (DC) link, receiving a measurement of voltage applied to the rectifier by the phase leads and receiving a measurement of voltage applied to the inverter by the DC link. DC link voltage balance and sequence voltages are calculated using the measurement of voltage applied to the rectifier by the phase leads and the measurement of voltage applied to the inverter by the DC link. Determination is made using the DC link voltage balance and phase sequence voltages when no fault exists in the generator module. Determination is made that a fault condition exists using the DC link voltage balance and phase sequence voltages when a fault exists in the generator module. Generator modules are also described.
-
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.
-
公开(公告)号：US10715029B1
公开(公告)日：2020-07-14
申请号：US16271337
申请日：2019-02-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Randall Bax , Dwight D. Schmitt
Abstract: A generator system can include a generator configured to produce an output of alternating current (AC), a rectifier connected to the generator to rectify the AC into direct current (DC) rectifier output, an inverter connected to the rectifier to receive the DC rectifier output and configured to output three phase AC inverter output, and a plurality of output lines connected to the inverter to receive the three phase AC inverter output. The system can include a control module configured to control the output of the inverter. The control module can be operatively connected to one or more of the output lines via one or more local sense leads to receive a local feedback. The control module can be configured to control the inverter as a function of the local feedback to provide one or more of protection and/or voltage regulation. The control module can be connected to one or more point of reference (POR) leads configured to be connected to a POR on a plurality of load input lines of a load to provide POR feedback to the control module. The control module can be configured to control the inverter to provide harmonic correction as a function of the POR feedback.
-
公开(公告)号：US20200182934A1
公开(公告)日：2020-06-11
申请号：US16212192
申请日：2018-12-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Huazhen Chai , Dwight D. Schmitt
Abstract: A fault detection method includes, at a generator module having a generator, a rectifier connected to the generator by phase leads, and an inverter connected to the rectifier by a direct current (DC) link, receiving a measurement of voltage applied to the rectifier by the phase leads and receiving a measurement of voltage applied to the inverter by the DC link. DC link voltage balance and sequence voltages are calculated using the measurement of voltage applied to the rectifier by the phase leads and the measurement of voltage applied to the inverter by the DC link. Determination is made using the DC link voltage balance and phase sequence voltages when no fault exists in the generator module. Determination is made that a fault condition exists using the DC link voltage balance and phase sequence voltages when a fault exists in the generator module. Generator modules are also described.
-
Patent Agency Ranking
公开(公告)号：US10075119B2
公开(公告)日：2018-09-11
申请号：US15243010
申请日：2016-08-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Dwight D. Schmitt , Curtis J. Plude , Adam Michael White , John Duward Sagona
Abstract: A system and method for controlling a DC midpoint terminal voltage of a three level inverter is provided. The method includes receiving an input power signal at a three level motor controller system that includes a three level inverter, measuring, using a current sensor in the three level motor controller system, a DC current of the input power signal before the input power signal is provided to the three level inverter, and adjusting a zero-sequence inverter output voltage to adjust a midpoint voltage at the DC midpoint based on the measured DC current.
-
7.发明申请LIGHT WEIGHT FILTER WITH DC COMMON MODE INDUCTOR FOR ELECTRIC AIRCRAFT MOTOR CONTROLLER 审中-公开具有电动飞机电机控制器的直流共模电感器的轻量滤波器公开(公告)号：US20150349694A1
公开(公告)日：2015-12-03
申请号：US14294442
申请日：2014-06-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Frank Z. Feng , Dwight D. Schmitt , Mustansir Kheraluwala
CPC classification number: H02M7/48 , H02M2001/123
Abstract: A motor controller has a direct current input, inverter, common mode filter, differential mode filter, and an output terminal. The direct current input is electrically connected to the common mode filter. The common mode filter is electrically connected to the inverter. The inverter is electrically connected in to the differential mode filter. The differential mode filter is electrically connected to the output terminal. The common mode filter is configured to attenuate common mode noise and is located on the input side of the inverter. The differential mode filter attenuates differential mode noise and is located on the output side of the inverter. A motor system having a motor controller, a direct current source, a feeder cable, and an electric motor.
Abstract translation: 电机控制器具有直流输入，逆变器，共模滤波器，差模滤波器和输出端子。 直流输入电连接到共模滤波器。 共模滤波器电连接到逆变器。 逆变器电连接到差模滤波器。 差分滤波器电连接到输出端子。 共模滤波器被配置为衰减共模噪声，并位于逆变器的输入侧。 差分模式滤波器衰减差模噪声，位于变频器的输出侧。 具有电动机控制器，直流电源，馈电电缆和电动机的电动机系统。
-
公开(公告)号：US20220216815A1
公开(公告)日：2022-07-07
申请号：US17141012
申请日：2021-01-04
Applicant: Hamilton Sundstrand Corporation
Inventor： Vlatko Miskovic , Shawn J. Young , Dwight D. Schmitt , Matthew Ryan Hasseman
Abstract: A system comprises a generator control unit (GCU) configured to control a generator. The system includes a first sensor connected to provide feedback to the GCU for generator control. The first sensor is configured to connect to sense at least one of voltage and/or current in a feeder connecting between the generator and a load. The system also includes a second sensor connected to provide feedback to the GCU for generator control. The second sensor is configured to sense at least one of voltage and/or current in a feeder connecting between the generator and the load. The first and second sensors are configured to connect to the feeder apart from one another with feeder impedance therebetween.
-
公开(公告)号：US10804023B2
公开(公告)日：2020-10-13
申请号：US15380057
申请日：2016-12-15
Applicant: Hamilton Sundstrand Corporation
Inventor： Debabrata Pal , Harry H. Chai , Dwight D. Schmitt , Frank Z. Feng , Charles Shepard
IPC: H01F27/10 , H05K3/32 , H05K1/18 , H05K7/20 , H01F27/02 , H01F41/04 , H01F27/18 , H01F27/28 , H01F30/16 , H01F27/29 , H01F27/30
Abstract: An inductor includes a printed wiring board (PWB) and a plurality of electrically-conductive heat pipes operatively connected to the PWB. The PWB includes electrically conductive traces electrically connected to the plurality of electrically-conductive heat pipes. The traces and plurality of electrically conductive heat pipes form an inductor winding. A method of manufacturing an inductor includes mounting a plurality of electrically conductive heat pipes to a printed wiring board (PWB), wherein the PWB includes electrically conductive traces to connect the plurality of electrically-conductive heat pipes to form an inductor winding.
-
公开(公告)号：US20200259422A1
公开(公告)日：2020-08-13
申请号：US16271330
申请日：2019-02-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Randall Bax , Dwight D. Schmitt
IPC: H02M5/458
Abstract: A generator system can include a generator configured to produce an output of alternating current (AC), a rectifier connected to the generator to rectify the AC into direct current (DC) rectifier output, an inverter connected to the rectifier to receive the DC rectifier output and configured to output three phase AC inverter output, and a plurality of output lines connected to the inverter to receive the three phase AC inverter output. The system can include a control module configured to control the output of the inverter. The control module can be operatively connected to one or more of the output lines via one or more local sense leads to receive a local feedback. The control module can be configured to control the inverter as a function of the local feedback to provide one or more of protection, voltage regulation, or harmonic correction.
-
-
-
-
-
-
-
-
-
Search Results
21
records
(took 0.015 seconds)
