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公开(公告)号：US10700550B2
公开(公告)日：2020-06-30
申请号：US15417246
申请日：2017-01-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kapil Jha , Pradeep Vijayan , Yash Veer Singh
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to decouple the second converting unit from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.
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公开(公告)号：US20220344974A1
公开(公告)日：2022-10-27
申请号：US17810935
申请日：2022-07-06
Applicant: General Electric Company
Inventor： Kapil Jha , Pradeep Vijayan , Yash Veer Singh
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to regulate the second DC voltage across the electric load if the second DC voltage across the electric load is greater than a voltage reference value.
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公开(公告)号：US20210203242A1
公开(公告)日：2021-07-01
申请号：US16730301
申请日：2019-12-30
Applicant: General Electric Company
Inventor： Joseph Kiran Banda , Kapil Jha , Hridya Ittamveettil , Arvind Kumar Tiwari
Abstract: A method for controlling a voltage source power converter of a renewable energy power conversion system includes providing the voltage source power converter having, at least, a rotor-side converter and a line-side converter. The method also includes generating, via a converter controller, a first set of switching pulses based on a third-harmonic phase opposition carrier-based pulse width modulation (PO_CB_PWM) scheme. Further, the method includes generating, via the converter controller, a second set of switching pulses based on a third-harmonic in phase carrier-based pulse width modulation (IP_CB_PWM) scheme. As such, the method includes implementing, via the converter controller, a pulse-width modulation scheme for the rotor-side and line-side converters using the first and second sets of switching pulses, respectively, to obtain an output voltage from the voltage source converter to a desired magnitude, shape, and/or frequency.
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公开(公告)号：US10778112B2
公开(公告)日：2020-09-15
申请号：US15944828
申请日：2018-04-04
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Harold Robert Schnetzka , Robert Gregory Wagoner , Amy Marlene Ridenour , Kapil Jha , Yashomani Y. Kolhatkar , Arvind Kumar Tiwari
IPC: H02M5/458 , H02P9/00 , F03D9/25 , H02M1/12 , H02M7/493 , H02P101/15 , H02K7/18 , H02M7/219 , H02M1/00 , H02M7/5387 , H02M7/23
Abstract: An electrical power system connected to a power grid can include a generator having a stator and a rotor and a power converter. The stator is connected to the power grid via a stator power path. The power converter can include a line-side converter coupled to the power grid via a converter power path and a rotor-side converter coupled to a rotor bus of the rotor and the line-side converter via a DC link. The rotor-side converter is configured to convert a DC power on the DC link to an AC signal for the rotor bus. The power system can also include an active filter having one or more active controlled components. The active filter is coupled in parallel with the rotor-side converter to reduce harmonics of the electrical power system.
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公开(公告)号：US11641171B2
公开(公告)日：2023-05-02
申请号：US17269136
申请日：2019-08-21
Applicant: General Electric Company
Abstract: A control device (110) includes a first multiplexing unit (202) configured to segregate a first PWM signal having a first switching frequency into a second PWM signal having a second switching frequency and a third PWM signal having a third switching frequency. Also, the control device (110) includes an integrator unit (204) configured to generate a first integrated signal and a second integrated signal based on the second PWM signal and the third PWM signal, and a modulator unit (206) configured to receive the first integrated signal and the second integrated signal and generate a modulation signal based on the first integrated signal and the second integrated signal. Furthermore, the control device (110) includes a generator unit (208) configured to receive the modulation signal and generate a fourth PWM signal having a fourth switching frequency different from the first switching frequency based on the modulation signal.
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Patent Agency Ranking
公开(公告)号：US20200287418A1
公开(公告)日：2020-09-10
申请号：US16880712
申请日：2020-05-21
Applicant: General Electric Company
Inventor： Kapil Jha , Pradeep Vijayan , Yash Veer Singh
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to decouple the second converting unit from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.
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公开(公告)号：US20200287375A1
公开(公告)日：2020-09-10
申请号：US16884338
申请日：2020-05-27
Applicant: General Electric Company
Inventor： Kapil Jha , Arvind Kumar Tiwari , Yash Veer Singh , Olive Ray
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to an AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to transmit the input power having the AC voltage. Also, the wireless power transfer system includes a second converting unit configured to convert the AC voltage to a second DC voltage and transmit the input power having the second DC voltage to an electric load. Additionally, the wireless power transfer system includes a switching unit configured to decouple the electric load from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.
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公开(公告)号：US10742149B1
公开(公告)日：2020-08-11
申请号：US16390547
申请日：2019-04-22
Applicant: General Electric Company
Inventor： Kasi Viswanadha Raju Gadiraju , Olive Ray , Kapil Jha , Yashomani Yashodhan Kolhatkar
IPC: H02P9/42 , H02P9/00 , H02P9/10 , H02P9/30 , H02P101/15 , H02M5/458 , H02M1/42 , H02J3/18 , F03D9/25 , H02J3/38
Abstract: A method and associated system for operating a power generation system to provide real and reactive power to a load includes, with a power converter having switching elements, receiving power from a generator and generating the reactive power within an operating range of generator rotor speed. As the generator rotor speed changes and approaches synchronous speed, a control command is generated to decrease a switching frequency of the switching elements in the power converter from a first switching frequency to a second switching frequency, wherein the reactive power output of the power converter is maintained or increased at the second switching frequency.
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公开(公告)号：US10673275B2
公开(公告)日：2020-06-02
申请号：US15420139
申请日：2017-01-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kapil Jha , Pradeep Vijayan , Yash Veer Singh
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to regulate the second DC voltage across the electric load if the second DC voltage across the electric load is greater than a voltage reference value.
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公开(公告)号：US20170366100A1
公开(公告)日：2017-12-21
申请号：US15188761
申请日：2016-06-21
Applicant: General Electric Company
Inventor： Yash Veer Singh , Arvind Kumar Tiwari , Scott Brian Wright , Kapil Jha
CPC classification number: H02M7/217 , B60R16/02 , G08B21/182 , H02M7/06 , H02M7/066
Abstract: A power conditioning unit used in an electrical system. The power conditioning unit includes a positive bus and a negative bus that are electrically connected to a direct current load to enable supplying direct current electrical power to the direct current load; and a first phase leg, which includes a first diode electrically connected to the positive bus, a first transistor electrically connected to the negative bus, and a first node between the first diode and the first transistor. The first node is electrically connected to an alternating current power source to enable the first phase leg to receive a first phase of alternating current electrical power from the alternating current power source and the first transistor opens and closes to control flow of the first phase through the first phase leg to facilitate generating the direct current electrical power at a target voltage using the alternating current electrical power.
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