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公开(公告)号：US12123905B2
公开(公告)日：2024-10-22
申请号：US17836225
申请日：2022-06-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Kyle Stephen Ives , Tom A. Utecht , Michael C. Harke
CPC classification number: G01R31/085 , G05F1/66 , H02J3/46 , H02M5/4585 , H02J2310/44
Abstract: A system includes a generator. Three AC feeders are connected for feeding AC output from the generator. A rectifier is electrically connected to the three AC feeders and to a load via a first DC feeder and a second DC feeder. A first resistor connects between a the first DC feeder and ground. A second resistor connects between the second DC feeder and ground. At least one of a first current sensor is operatively connected to detect current in the first DC feeder and/or a second current sensor is operatively connected to detect current in the second DC feeder. A controller is configured to monitor for changes in common mode current based on the input from the at least one current sensor, and to determine presence of a fault if change in the common mode current exceeds a predetermined threshold.
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公开(公告)号：US20220376498A1
公开(公告)日：2022-11-24
申请号：US17569553
申请日：2022-01-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael C. Harke , William S. Heglund
Abstract: Systems for power sharing coordination of parallel sources are provided. Aspects include a first DC power supply, a second DC power supply, a first generator controller configured to operate the first DC power source, a first current sensing device coupled between the first DC power supply and the common bus point, a second current sensing device coupled between the common bus point and a load, wherein the first generator controller is configured to receive a first current signal from the first current sensing device, receive a second current signal from the second current sensing device, determine a load share percentage for the first DC power supply, determine a first voltage adjustment based on the first current signal, the second current signal, and the load share percentage, and operate the first DC power supply to adjust a first voltage output by the first voltage adjustment.
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公开(公告)号：US11482957B1
公开(公告)日：2022-10-25
申请号：US17391123
申请日：2021-08-02
Applicant: Hamilton Sundstrand Corporation
Inventor： Kyle Stephen Ives , Michael C. Harke , Robert L. Seagren
Abstract: Systems for a cascaded multiple feedback generator controller are provided. Aspects include a direct current (DC) power supply comprising a generator and a rectifier circuit connected to a load, a first voltage sensing device coupled to a first point of regulation, a second voltage sensing device coupled to a second point of regulation, a generator controller configured to receive a first voltage signal from the first voltage sensing device, receive a second voltage signal from the second voltage sensing device, determine an adjustment for the generator, the adjustment comprising a transient performance response and a voltage droop response, wherein the transient performance response is determined based on the first voltage signal, and wherein the voltage droop response is determined based on the second voltage signal, and operate the generator based on the adjustment for the generator.
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公开(公告)号：US11183956B2
公开(公告)日：2021-11-23
申请号：US16361033
申请日：2019-03-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Mustansir Kheraluwala , Tadashi Sawata , Michael C. Harke
Abstract: An electric propulsion system includes a prime mover, a starter-motor generator configured to be driven by the prime mover to generate electric power, and an electric propulsion motor, and an integrated generator-motor controller arranged to control the supply of the electric power to the electric propulsion motor in response to a control signal, wherein the integrated generator-motor controller includes an active rectifier configured in a first mode to feed-forward to the starter-motor generator a power demand parameter associated with the control signal so as to control the power output of the starter-motor generator in order to start the prime mover.
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公开(公告)号：US11011908B2
公开(公告)日：2021-05-18
申请号：US16532683
申请日：2019-08-06
Applicant: Hamilton Sundstrand Corporation
Inventor： Christopher E. Hopkins , Michael C. Harke
Abstract: To join two sources in parallel, the second source output is lowered and then raised until two diodes providing an auxiliary path are passing current. This can reduce current spikes. Alternatively, the diodes can reversed, the voltage raised, and the lowered until diose are passing current.
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Patent Agency Ranking
公开(公告)号：US20230400530A1
公开(公告)日：2023-12-14
申请号：US17986293
申请日：2022-11-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Kyle Stephen Ives , Michael C. Harke , Tom A. Utecht
CPC classification number: G01R31/52 , H02M1/123 , H02M1/325 , H02M1/4216
Abstract: A system includes a generator. Three AC feeders are connected for feeding AC output from the generator. A rectifier is electrically connected to the three AC feeders and to a load via a first DC feeder and a second DC feeder. A first resistor connects between a first one of the DC feeders and ground. A first voltage sensor is operatively connected to detect voltage across the first resistor. A second resistor connects between the second DC feeder and ground. A second voltage sensor is operatively connected to detect voltage across the second resistor. A controller is configured to monitor for changes in common mode voltage based on the input from the first sensor and from the second sensor, and to determine presence of a fault if change in the common mode voltage exceeds a predetermined threshold.
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公开(公告)号：US11697424B2
公开(公告)日：2023-07-11
申请号：US16791513
申请日：2020-02-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Jung Muk Choe , Michael C. Harke , Xin Wu
IPC: B60W50/04
CPC classification number: B60W50/045
Abstract: A method can include perturbing an electric motor of a hybrid powerplant having the electric motor and a fuel powered engine. The method can include measuring a frequency response of the powerplant due to the perturbing of the electric motor to determine a health of the powerplant and/or one or more components thereof.
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公开(公告)号：US20230065688A1
公开(公告)日：2023-03-02
申请号：US17458037
申请日：2021-08-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Thomas P. Joyce , Michael C. Harke , William S. Heglund , Lon R. Hoegberg
Abstract: A generator system can include a first generator, a first controller operatively connected to the first generator to control a first generator voltage output, a second generator, and a second controller operatively connected to the second generator to control a second generator voltage output. The first generator and the second generator can be configured in a parallel generator configuration to share load power. The first controller and the second controller can be configured to provide foldback control. The first controller and the second controller can be configured to calibrate foldback to correct for current sharing imbalance between the first generator and the second generator.
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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：US10707774B1
公开(公告)日：2020-07-07
申请号：US16409483
申请日：2019-05-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael C. Harke , Vlatko Miskovic
IPC: H02M7/44
Abstract: A system and method is provided for controlling conversion of a received DC voltage (Vdc) into an AC inverter voltage. The method includes determining a reference Vpor (Vpor_REF) based on measured or estimated Vdc such that Vpor_REF is feasible at all values of Vdc for regulating a modulation index signal M_abc at a selectable frequency ω as a function of a measured or estimated voltage at the point of reference (Vpor), wherein M_abc is regulated by Vpor_REF to regulate the inverter hardware circuit to output the AC inverter voltage in order for Vpor to satisfy a requirement appropriate for the load.
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