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1.发明授权公开(公告)号：US11909226B2
公开(公告)日：2024-02-20
申请号：US17612805
申请日：2020-05-20
Applicant: General Electric Company
Inventor： Rupam Basak , Jayanti Ganesh , Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Subbarao Tatikonda
CPC classification number: H02J50/402 , H02J7/0013 , H02J50/12 , H02J50/80 , H02J50/90
Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a wireless power transmission apparatus that supports charging of one or more wireless power receiving apparatuses. The wireless power transmission apparatus may include multiple primary coils organized in groups (referred to as zones). Each zone may have a local controller for managing operation of one primary coil in the zone at a time. A master controller may selectively couple the primary coils to the local controllers. When a first primary coil is coupled to the local controller for a zone, the other primary coils in that zone may be disabled. The master controller may manage which primary coils from neighboring zones are coupled to their respective local controllers. Thus, when the first primary coil is activated, the adjacent primary coils (near the first primary coil) can be muted or disabled to mitigate undesirable interference.
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公开(公告)号：US20170285119A1
公开(公告)日：2017-10-05
申请号：US15475905
申请日：2017-03-31
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Rajendra Naik , Juan Sabate , Michael Rose , Jayanti Ganesh
IPC: G01R33/36 , G01R33/561 , H02J3/32 , G01R33/385 , H02J3/36 , H02J7/00
CPC classification number: G01R33/3614 , A61B6/032 , A61B6/56 , G01R33/28 , G01R33/3852 , G01R33/5616 , H02J7/0068 , H02J7/34
Abstract: A method of handling a peak power requirement of a medical imaging device 106 is presented. The method includes determining, using at least one controlling unit 107, 108, a first voltage corresponding to a direct current (DC) link 116, a second voltage corresponding to one or more energy storage devices 110, or a combination thereof, where a power source 102 is coupled to a plurality of loads via the DC link, and the energy storage devices are coupled to the DC link. Further, the method includes comparing, using the at least one controlling unit, the first voltage with a first reference value and the second voltage with a second reference value and regulating, using at least one controlling unit, at least one of the first voltage and the second voltage based on the comparison, to handle the peak power requirement of the medical imaging device.
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公开(公告)号：US20230275464A1
公开(公告)日：2023-08-31
申请号：US18041028
申请日：2021-08-09
Applicant: General Electric Company
Inventor： Jayanti Ganesh , Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Joginder Yadav
Abstract: This disclosure provides systems, methods and apparatuses for wireless power transmission and reception. A wireless power transmission apparatus may include a primary coil that transmits power to a corresponding secondary coil in a wireless power reception apparatus. The wireless power transmission apparatus may configure characteristics of the wireless power transmission based on a load setting of a wireless power reception apparatus. The wireless power transmission apparatus may take into account a coupling factor and power transfer characteristics of the wireless power reception apparatus in determining a configuration of the wireless power transmission from the wireless power transmission apparatus to the wireless power reception apparatus. In some implementations, a change in wireless power transmission may occur based on a corresponding change in the load. For example, the change in wireless power transmission and the corresponding change in the load may occur in relation to a synchronization event.
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公开(公告)号：US11601079B2
公开(公告)日：2023-03-07
申请号：US16523432
申请日：2019-07-26
Applicant: General Electric Company
Inventor： Yashomani Y Kolhatkar , Jayanti Ganesh , Zhuohui Tan , Arvind Kumar Tiwari
Abstract: The present application relates to a method for controlling a power system connected to a power grid, including: receiving a reactive power instruction and a measured reactive power from a generator; generating a reactive power error signal based on the difference between the reactive power instruction and the measured reactive power; receiving the reactive power error signal; generating a voltage instruction based on reactive power error signal; generating a voltage droop signal based on a reference reactance and a voltage at a point of common coupling; generating a voltage error signal according to at least one of the voltage instruction or the measured terminal voltage of the generator and the voltage droop signal; and producing a reactive current instruction for the converter power path based on the voltage error signal. The present application also discloses a control system for a power system connected to a power grid and a wind farm.
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公开(公告)号：US20200158802A1
公开(公告)日：2020-05-21
申请号：US16749452
申请日：2020-01-22
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Jayanti Ganesh , Juan Antonio Sabate
IPC: G01R33/385 , H02M3/335 , H03F3/217 , H02M3/337
Abstract: Power systems and circuitry for generation of gradient magnetic fields in magnetic resonance imaging (MRI) systems are discussed herein. Embodiments may include the use of multiple gradient amplifiers that share a high-frequency power distribution unit, that may perform power distribution and power supply roles. The high-frequency power distribution unit may allow the use of a single power supply to drive multiple gradient amplifiers via a shared power bus. The gradient amplifiers may make use of modern semiconductor materials that provide high-frequency, high voltage performance, and may be implemented using single semiconductor bridges.
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Patent Agency Ranking
公开(公告)号：US10067203B2
公开(公告)日：2018-09-04
申请号：US14879775
申请日：2015-10-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Jayanti Ganesh , Juan Antonio Sabate , Rajendra Naik , Margaret Ann Wiza , Viswanathan Kanakasabai , Michael Thomas Rose
IPC: H02J3/00 , G01R33/36 , A61B5/055 , G01R33/385 , G01R33/389 , H02J9/06 , H02M7/04 , G01R33/28
Abstract: The present disclosure relates possible implementations for utilizing energy storage elements in conjunction with a MRI system. Similarly, various associated control mechanisms are discussed. In certain embodiments, one or both of peak power shaving or energy backup may be facilitated by use of the energy storage elements. Certain such implementations may facilitate the use of higher-power MRI systems with an existing electrical infrastructure.
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公开(公告)号：US20240348099A1
公开(公告)日：2024-10-17
申请号：US18292648
申请日：2022-09-08
Applicant: General Electric Company
Inventor： Jayanti Ganesh , Viswanathan Kanakasabai , Subbarao Tatikonda
CPC classification number: H02J50/12 , H02J7/0029 , H02J7/0047 , H02J50/80
Abstract: This disclosure provides systems, methods and apparatuses for a wireless power transmission apparatus to detect a fault of the wireless power reception apparatus. Various implementations relate generally to fault detection and mitigation in a wireless power system. In some aspects, a transmission (TX) controller of the wireless power transmission apparatus can detect a fault in the wireless power reception apparatus based on power transfer measurements or calculations in the wireless power transmission apparatus. The techniques may enable the wireless power transmission apparatus to detect faults such as an open circuit in the wireless power reception apparatus or a thermostat failure, among other examples. During the transmission of wireless power, the wireless power transmission apparatus may detect the fault and cease the transmission of wireless power.
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公开(公告)号：US20240146123A1
公开(公告)日：2024-05-02
申请号：US18546820
申请日：2022-02-14
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Jayanti Ganesh , Subbarao Tatikonda
Abstract: This disclosure provides systems, methods and apparatuses for preventing power transfer in a secondary coil of a wireless power reception apparatus. Some implementations relate generally to the use of one or more switches. In some implementations, the one or more switches may be coupled in series to one or both ends of the secondary coil. The one or more switches may be controlled based on a handshake communication between the wireless power reception apparatus and a compatible wireless power transmission apparatus. The one or more switches may be controlled using bias power from a wireless communication interface that is separate from a power reception circuitry that includes the secondary coil. The one or more switches may disable power transfer in the secondary coil to protect one or more components of the wireless power reception apparatus or to enable measurement of a coupling factor during measurement periods.
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公开(公告)号：US20240094426A1
公开(公告)日：2024-03-21
申请号：US18264662
申请日：2022-02-16
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Subbarao Tatikonda , Jayanti Ganesh , Joginder Yadav , Suma Memana Narayana Bhat
Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.
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公开(公告)号：US20230387727A1
公开(公告)日：2023-11-30
申请号：US18447433
申请日：2023-08-10
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Subbarao Tatikonda , Jayanti Ganesh , Joginder Yadav , Suma Memana Narayana Bhat
Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.
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