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公开(公告)号：US20230283117A1
公开(公告)日：2023-09-07
申请号：US18006208
申请日：2021-07-16
Applicant: General Electric Company
Inventor： Jayanti Ganesh , Rupam Basak , Viswanathan Kanakasabai
CPC classification number: H02J50/402 , H02J50/80 , H02J50/90 , H02J7/00714 , H02J50/10
Abstract: This disclosure provides systems, methods, and apparatuses for wireless power reception. Various implementations relate generally to a wireless power reception apparatus including multiple secondary coils that receive wireless power from corresponding primary coils of a wireless power transmission apparatus. When a secondary coil receives power form a primary coil, they form a latched coil pair. Initially, the wireless power reception apparatus receives via a number of latched coil pairs. Coil pairs may de-latch as they physically move out of alignment. If one or more coil pairs de-latch, voltage may drop in the latched coil pairs. The wireless power reception apparatus includes a power controller that can detect drops in voltage resulting from de-latching coil pairs. In response, the power controller can modify current drawn from the remaining latched coil pairs. By modifying current drawn from the remaining latched coil pairs, the power controller can avoid system failure.
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公开(公告)号：US20210265864A1
公开(公告)日：2021-08-26
申请号：US17166857
申请日：2021-02-03
Applicant: General Electric Company
Abstract: One innovative aspect of the subject matter described in this disclosure can be implemented in a wireless power reception apparatus. In some implementations, the wireless power reception apparatus may include a ferrite layer including a void. The wireless power reception apparatus may also include a first secondary coil configured to generate first power in cooperation with one or more primary coils of a wireless power transmission apparatus, where at least a portion of the first secondary coil resides in the void of the ferrite layer. The wireless power reception apparatus may also include one or more second secondary coils configured to generate second power in cooperation with the one or more primary coils of the wireless power transmission apparatus, where a portion of the second secondary coil is overlaying the portion of the first secondary coil residing in the void of the ferrite layer.
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公开(公告)号：US20250030275A1
公开(公告)日：2025-01-23
申请号：US18713789
申请日：2023-01-25
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Jayanti Ganesh , Subbarao Tatikonda
Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. An FOD protocol can be coordinated with different operating phases of the WPT system, such as an idle phase, a configuration phase, a connected phase, and a power transfer phase. An FOD assessment unit may perform foreign object detection assessments as part of each operating phase. The FOD protocol may include an initial idle phase foreign object detection assessment in the idle phase to handle a scenario in which a Power Receiver is placed on the Power Transmitter before the Power Transmitter has been turned on. The FOD assessment unit may adjust offset values used during each FOD assessment to improve accuracy of foreign object detection. The offset values may be adapted to accommodate movement of the Power Receiver after the initial idle phase foreign object detection assessment.
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14.发明公开公开(公告)号：US20240186837A1
公开(公告)日：2024-06-06
申请号：US18444073
申请日：2024-02-16
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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15.发明申请公开(公告)号：US20220247229A1
公开(公告)日：2022-08-04
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
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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Patent Agency Ranking
公开(公告)号：US20170102441A1
公开(公告)日：2017-04-13
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: G01R33/36 , H02J9/06 , G01R33/389 , H02M7/04 , A61B5/055 , G01R33/385
CPC classification number: G01R33/36 , A61B5/055 , G01R33/28 , G01R33/3614 , G01R33/3852 , G01R33/389 , H02J9/061 , H02M7/04
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：US20230384471A1
公开(公告)日：2023-11-30
申请号：US18447538
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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公开(公告)号：US11637515B2
公开(公告)日：2023-04-25
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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19.发明申请公开(公告)号：US20200052493A1
公开(公告)日：2020-02-13
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：US10557901B2
公开(公告)日：2020-02-11
申请号：US15901742
申请日：2018-02-21
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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