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公开(公告)号：US20170227590A1
公开(公告)日：2017-08-10
申请号：US15016338
申请日：2016-02-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Waleed M. Said , Randall Bax
CPC classification number: G01R31/02 , G01R31/2812 , G01R31/34 , G05B23/0243 , G06F17/5036 , H02H3/023 , H02H3/083 , H02H3/10 , H02H7/0833 , H02H7/1203 , H02P29/0241
Abstract: A motor controller circuit includes an electrical powertrain having a three phase input, a DC link and a three phase output, a controller including a processor and a memory, a first current sensor configured to sense a current at the three phase input, a second current sensor configured to sense a current at the three phase output, and a third sensor configured to sense a current at the DC link, and wherein the memory stores instructions configured to cause the processor to compare an operational model of the powertrain against a mathematical model of the powertrain and to detect a high impedance fault when a deviation between the operational model and the mathematical model exceeds a threshold.
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公开(公告)号：US20170074168A1
公开(公告)日：2017-03-16
申请号：US14856442
申请日：2015-09-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Harry H. Chai , Waleed M. Said
CPC classification number: F02C7/26 , F01D15/10 , F02C7/275 , F05D2220/762 , F05D2220/764 , F05D2260/85 , H02M1/00 , H02M1/14 , H02M7/483 , H02M7/487 , H02P27/08
Abstract: A start inverter for an electric engine start scheme includes an inverter phase leg with solid-state switches and a pulse width modulator operatively connected to the solid-state switches of the inverter phase leg. The pulse width modulator provides command signals to the solid-state switches of the inverter phase leg to invert direct current into alternating current with less ripple than a start inverter with two solid-state switches per phase leg.
Abstract translation: 用于电动起动方案的起动逆变器包括具有固态开关的反相器相支路和可操作地连接到逆变器相支路的固态开关的脉宽调制器。 脉冲宽度调制器向逆变器相支路的固态开关提供指令信号，以将直流电转换成具有比具有两个固态开关每相支路的启动逆变器更少纹波的交流电流。
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公开(公告)号：US20140292365A1
公开(公告)日：2014-10-02
申请号：US13853525
申请日：2013-03-29
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Waleed M. Said
IPC: G01R1/04
CPC classification number: G01R1/0416 , G01R31/008 , G01R31/1227 , G01R31/20
Abstract: An electronics system module includes a primary electrical circuit including input connectors and output connectors and a filter circuit connected between the primary electrical circuit and ground. The module also includes a switch element connected between the primary electrical circuit and ground. The switch element is configured to be engaged by a test connector to open the switch to disconnect the primary electrical circuit from ground. The test connector includes electrical connectors configured to connect to the input connectors and the output connectors of the primary electrical circuit. The switch element is configured to automatically close based on the test connector being disengaged from the switch element
Abstract translation: 电子系统模块包括主电路，其包括输入连接器和输出连接器以及连接在主电路和地之间的滤波电路。 该模块还包括连接在主电路和地之间的开关元件。 开关元件被配置为由测试连接器接合以打开开关以将主电路与地断开。 测试连接器包括被配置为连接到主电路的输入连接器和输出连接器的电连接器。 开关元件被配置为基于从开关元件脱离的测试连接器自动关闭
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公开(公告)号：US20170317630A1
公开(公告)日：2017-11-02
申请号：US15142447
申请日：2016-04-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Waleed M. Said , Sunil S. Patel
IPC: H02P9/48
Abstract: In accordance with one or more embodiments, a method for implementing a PMG variable speed constant frequency generating system on an aircraft including an aircraft engine is provided. The method includes receiving AC power from a PMG at an AC/DC conversion stage, the received power being proportional to a rate of rotation of the aircraft engine and converting the AC power to DC power in the AC/DC conversion stage. The method further includes sensing a DC voltage output by the AC/DC conversion stage and providing the DC voltage to a DC/AC conversion stage. The method includes providing a control signal to the DC/AC conversion stage to control a frequency and a voltage of an output signal of the DC/AC conversion stage without varying an electrical signal provided to the PMG.
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5.发明授权Voltage step-up six-phase autotransformer passive rectification AC-DC converter 有权电压升压六相自耦变压器无源整流AC-DC转换器公开(公告)号：US09197138B2
公开(公告)日：2015-11-24
申请号：US14162183
申请日：2014-01-23
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Frank Z. Feng , Mustansir Kheraluwala , Waleed M. Said
Abstract: A three phase step-up autotransformer construction is discussed herein. The passive 12-pulse AC-DC converter offers simplicity, high reliability and low cost solution to AC-DC power conversion. The autotransformer is a component of the passive 12-pulse AC-DC converter. The autotransformer converts three-phase AC power into six-phase AC power. With appropriate vector design, the autotransformer may be configured to draw a near sinusoidal 12-pulse current waveform from the three-phase voltage source. The six-phase output may be configured to drive a rectifier (non-linear) load.
Abstract translation: 本文讨论了三相升压自耦变压器结构。 无源12脉冲AC-DC转换器为AC-DC电源转换提供了简单，高可靠性和低成本的解决方案。 自耦变压器是无源12脉冲AC-DC转换器的组成部分。 自耦变压器将三相交流电源转换为六相交流电源。 通过适当的矢量设计，自耦变压器可以被配置为从三相电压源绘制近正弦12脉冲电流波形。 六相输出可以配置为驱动整流器（非线性）负载。
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Patent Agency Ranking
公开(公告)号：US09128119B2
公开(公告)日：2015-09-08
申请号：US13853525
申请日：2013-03-29
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Waleed M. Said
CPC classification number: G01R1/0416 , G01R31/008 , G01R31/1227 , G01R31/20
Abstract: An electronics system module includes a primary electrical circuit including input connectors and output connectors and a filter circuit connected between the primary electrical circuit and ground. The module also includes a switch element connected between the primary electrical circuit and ground. The switch element is configured to be engaged by a test connector to open the switch to disconnect the primary electrical circuit from ground. The test connector includes electrical connectors configured to connect to the input connectors and the output connectors of the primary electrical circuit. The switch element is configured to automatically close based on the test connector being disengaged from the switch element.
Abstract translation: 电子系统模块包括主电路，其包括输入连接器和输出连接器以及连接在主电路和地之间的滤波电路。 该模块还包括连接在主电路和地之间的开关元件。 开关元件被配置为由测试连接器接合以打开开关以将主电路与地断开。 测试连接器包括被配置为连接到主电路的输入连接器和输出连接器的电连接器。 开关元件被配置为基于从开关元件脱离的测试连接器自动关闭。
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公开(公告)号：US09840968B2
公开(公告)日：2017-12-12
申请号：US14856442
申请日：2015-09-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Harry H. Chai , Waleed M. Said
CPC classification number: F02C7/26 , F01D15/10 , F02C7/275 , F05D2220/762 , F05D2220/764 , F05D2260/85 , H02M1/00 , H02M1/14 , H02M7/483 , H02M7/487 , H02P27/08
Abstract: A start inverter for an electric engine start scheme includes an inverter phase leg with solid-state switches and a pulse width modulator operatively connected to the solid-state switches of the inverter phase leg. The pulse width modulator provides command signals to the solid-state switches of the inverter phase leg to invert direct current into alternating current with less ripple than a start inverter with two solid-state switches per phase leg.
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公开(公告)号：US09551744B2
公开(公告)日：2017-01-24
申请号：US13886927
申请日：2013-05-03
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Waleed M. Said , Harold J. Hansen , Hamdi Kozlu , Charles V. DeSantis
IPC: G01R31/305 , G01R31/28
CPC classification number: G01R31/2817 , G01R31/2801
Abstract: A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields.
Abstract translation: 一种方法包括通过测试第一组PWB以产生测试数据来表征电场对第一组印刷电路板（PWB）的影响，使用测试数据确定第一组PWB的介电寿命曲线， 并且基于介电寿命曲线，定义筛选时间和筛选电压以筛选由于电场引起的第二组PWB中的过早故障。
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公开(公告)号：US20150194905A1
公开(公告)日：2015-07-09
申请号：US14148967
申请日：2014-01-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Adam Michael White , Waleed M. Said , Mustansir Kheraluwala
IPC: H02M7/06
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：US20140218065A1
公开(公告)日：2014-08-07
申请号：US13886927
申请日：2013-05-03
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Waleed M. Said , Harold J. Hansen , Hamdi Kozlu , Charles V. DeSantis
IPC: G01R31/28
CPC classification number: G01R31/2817 , G01R31/2801
Abstract: A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields.
Abstract translation: 一种方法包括通过测试第一组PWB以产生测试数据来表征电场对第一组印刷电路板（PWB）的影响，使用测试数据确定第一组PWB的介电寿命曲线， 并且基于介电寿命曲线，定义筛选时间和筛选电压以筛选由于电场引起的第二组PWB中的过早故障。
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