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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：US09705360B2
公开(公告)日：2017-07-11
申请号：US14306791
申请日：2014-06-17
Applicant: General Electric Company
Inventor： Yashomani Kolhatkar , Rajendra Naik , Viswanathan Kanakasabai , Silvio Colombi
CPC classification number: H02J9/061 , G05F3/02 , H02J3/24 , H02J3/38 , H02J3/40 , H02J4/00 , H02J9/062 , Y10T307/344
Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs. The controller is configured to calculate an output voltage frequency for each UPS of the plurality of UPSs, and control operation of each UPS based on the respective calculated output voltage frequencies.
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公开(公告)号：US20160359319A1
公开(公告)日：2016-12-08
申请号：US14732220
申请日：2015-06-05
Applicant: General Electric Company
Inventor： Yashomani Y. Kolhatkar , Rajendra Naik , Viswanathan Kanakasabai , Raghothama Reddy
CPC classification number: H02H9/02 , G01R31/086 , H02H7/268 , H02J1/00 , H02J1/10 , Y04S10/522
Abstract: A direct current power (DC) distribution system includes a plurality of DC power sources, a ring bus, a plurality of switch assemblies, and a plurality of passive protection assemblies. Each DC power source is coupled to the ring bus by a respective switch assembly and a respective passive protection assembly.
Abstract translation: 直流电力（DC）分配系统包括多个DC电源，环形总线，多个开关组件和多个被动保护组件。 每个直流电源通过相应的开关组件和相应的被动保护组件耦合到环形总线。
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公开(公告)号：US20140152109A1
公开(公告)日：2014-06-05
申请号：US13689776
申请日：2012-11-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Viswanathan Kanakasabai , Rajendra Naik , Silvio Colombi , Said Farouk Said El-Barbari , Pradeep Vijayan
IPC: H02J9/00
CPC classification number: H02M3/33584 , H02J9/062 , H02M2007/4835 , Y10T307/615 , Y10T307/625
Abstract: A medium voltage uninterruptible power supply system is presented. The system includes a first power converter coupled between a first bus and a second bus. Furthermore, a second power converter operatively coupled to the first power converter via the first bus and the second bus, where the second power converter includes at least three legs, where the at least three legs include a plurality of switching units, and where the plurality of switching units includes at least two semiconductor switches and an energy storage device. Additionally, system includes a direct current link coupled between the first bus and the second bus. Also, system includes an energy source coupled to the second power converter, the direct current link, or a combination thereof via one or more of a third power converter, a transformer, and a fourth power converter. Method of operating a medium voltage uninterruptible power supply system is also presented.
Abstract translation: 介绍了一种中压不间断电源系统。 该系统包括耦合在第一总线和第二总线之间的第一功率转换器。 此外，第二功率转换器通过第一总线和第二总线可操作地耦合到第一功率转换器，其中第二功率转换器包括至少三个支路，其中至少三个支路包括多个开关单元，并且其中多个 的开关单元包括至少两个半导体开关和能量存储装置。 另外，系统包括耦合在第一总线和第二总线之间的直流链路。 而且，系统包括经由第三功率转换器，变压器和第四功率转换器中的一个或多个耦合到第二功率转换器，直流连接或其组合的能量源。 还介绍了操作中压不间断电源系统的方法。
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公开(公告)号：US11764609B2
公开(公告)日：2023-09-19
申请号：US17707819
申请日：2022-03-29
Applicant: General Electric Company
Inventor： Pradeep Vijayan , Rajendra Naik , Arun Kumar Raghunathan , Vishnu Mahadeva Iyer
Abstract: A contactless power transfer system is provided. The contactless power transfer system includes a first power exchanger coil configured to exchange power. The contactless power transfer system also includes a first power converter operatively coupled to the first power exchanger coil and configured to convert a direct current power to an alternating current power at a system frequency. The contactless power transfer system further includes a controller configured to control an operating state of the first power converter to vary an alternating current power provided to the first power exchanger coil at the system frequency.
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Patent Agency Ranking
公开(公告)号：US20170307702A1
公开(公告)日：2017-10-26
申请号：US15517132
申请日：2015-10-08
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Adnan Kutubuddin Bohori , Rajendra Naik , Suma Memana Narayana Bhat , Arun Kumar Raghunathan
IPC: G01R33/385 , A61B5/055
CPC classification number: G01R33/3852 , A61B5/055 , G01R33/36
Abstract: A gate driver unit is presented. The gate driver unit includes a first power exchanging coil operatively coupled to a power source. The gate driver unit includes a second power exchanging coil configured to receive power from the first power exchanging coil via a magnetic field and a field focusing element disposed between the first power exchanging coil and the second power exchanging coil and configured to focus the magnetic field onto the second power exchanging coil. The gate driver unit also includes a first circuit coupled to the second power exchanging coil. The gate driver unit includes a gate drive subunit operatively coupled to the first circuit and configured to provide an output signal to a control terminal corresponding to a controllable switch of a second circuit. A magnetic resonance imaging system and a method of contactless power transfer in a magnetic resonance imaging system are also presented.
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公开(公告)号：US09685820B2
公开(公告)日：2017-06-20
申请号：US14306641
申请日：2014-06-17
Applicant: General Electric Company
Inventor： Yashomani Kolhatkar , Pradeep Vijayan , Viswanathan Kanakasabai , Silvio Colombi , Rajendra Naik , Prashanth Manikumar Chennamsetty
CPC classification number: H02J9/061 , G05F3/02 , H02J3/40 , H02J3/46 , H02J4/00 , H02J9/062 , Y10T307/344
Abstract: A system is provided. The system includes a utility, a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs, the controller configured to determine a common reference angle while the utility is disconnected from at least one UPS of the plurality of UPSs, calculate a phase angle for each UPS of the plurality of UPSs, wherein the phase angle for each UPS is calculated relative to the common reference angle, and control operation of each UPS based on the respective calculated phase angles.
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公开(公告)号：US20170155278A9
公开(公告)日：2017-06-01
申请号：US14186159
申请日：2014-02-21
Applicant: General Electric Company
Inventor： YASHOMANI KOLHATKAR , Pradeep Vijayan , Silvio Colombi , Rajendra Naik , Viswanathan Kanakasabai
CPC classification number: H02J9/062 , G06F1/26 , G06F1/30 , H02J3/08 , H02J2009/068 , H02M5/42 , Y10T307/344
Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs. The controller is configured to calculate a phase angle for each UPS of the plurality of UPSs, wherein the phase angle is calculated relative to a common reference angle, and control operation of each UPS based on the respective calculated phase angles.
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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：US09479011B2
公开(公告)日：2016-10-25
申请号：US14097574
申请日：2013-12-05
Applicant: General Electric Company
Inventor： Viswanathan Kanakasabai , Silvio Colombi , Rajendra Naik
CPC classification number: H02J9/062 , H02J7/0013 , Y10T307/344
Abstract: A method and system for an uninterruptible power supply (UPS) are provided. The UPS includes a three-phase high power transformer, an active or passive-rectifier configured to generate and regulate a set of DC link voltages, and a set of cascaded inverters configured to generate an AC voltage using the DC link voltages. The UPS also includes a set of bi-directional battery converters configured to charge a bank of backup batteries when power is available from an AC mains source and discharge the bank of backup batteries to generate a three-phase AC voltage when the AC mains source voltage falls outside a predetermined range. The UPS further includes a bypass switch configured to electrically couple the AC mains source directly to a load when the UPS is in a bypass mode of operation and electrically couple the bank of backup batteries to the load through the set of bi-directional battery converters and the transformer.
Abstract translation: 提供了一种不间断电源（UPS）的方法和系统。 UPS包括三相大功率变压器，被配置为产生和调节一组DC链路电压的一个有源或无源整流器，以及一组级联逆变器，被配置为使用DC链路电压产生AC电压。 UPS还包括一组双向电池转换器，配置为从交流电源供电时为一组备用电池充电，并在备用电池组放电时产生三相交流电压，当交流电源电压 落在预定范围之外。 UPS还包括旁路开关，其配置成当UPS处于旁路操作模式时将AC电源直接电耦合到负载，并且通过该组双向电池转换器将备用电池组电耦合到负载，并且 变压器。
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