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公开(公告)号：US10027240B1
公开(公告)日：2018-07-17
申请号：US15399817
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
Abstract: Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a first voltage. The power generation unit can also include a power converter configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power converter can include one or more silicon carbide MOSFETs and at least one heatsink configured to remove heat from the power converter. The at least one heatsink of the power converter can be electrically connected to a local ground formed by one or more components of the power generation unit.
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公开(公告)号：US20180175761A1
公开(公告)日：2018-06-21
申请号：US15835531
申请日：2017-12-08
Applicant: General Electric Company
Inventor： Kapil JHA , Arvind Kumar Tiwari , Saurabh Shukla , Olive Ray
Abstract: A wind power generation system including a doubly fed induction generator (DFIG) of a wind turbine is presented. The DFIG includes a rotor and a stator, a rotor-side conversion unit coupled to the rotor, a direct current (DC) link, and at least one line-side conversion unit coupled to the rotor-side conversion unit via the DC link and coupled to the stator of the DFIG. The at least one line-side conversion unit includes exactly one first converter, high frequency transformers, and second converters, where each of the second converters is coupled to the first converter via a respective high frequency transformer, and inverters, where each of the inverters is coupled to a respective second converter and includes an alternative current (AC) phase terminal.
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公开(公告)号：US10715065B2
公开(公告)日：2020-07-14
申请号：US15835531
申请日：2017-12-08
Applicant: General Electric Company
Inventor： Kapil Jha , Arvind Kumar Tiwari , Saurabh Shukla , Olive Ray
Abstract: A wind power generation system including a doubly fed induction generator (DFIG) of a wind turbine is presented. The DFIG includes a rotor and a stator, a rotor-side conversion unit coupled to the rotor, a direct current (DC) link, and at least one line-side conversion unit coupled to the rotor-side conversion unit via the DC link and coupled to the stator of the DFIG. The at least one line-side conversion unit includes exactly one first converter, high frequency transformers, and second converters, where each of the second converters is coupled to the first converter via a respective high frequency transformer, and inverters, where each of the inverters is coupled to a respective second converter and includes an alternative current (AC) phase terminal.
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Patent Agency Ranking
公开(公告)号：US20200158085A1
公开(公告)日：2020-05-21
申请号：US16752626
申请日：2020-01-25
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert the low voltage alternating current power provided on the stator bus to a medium voltage multiphase alternating current output power suitable for provision to the electrical grid. The power converter includes a plurality of conversion modules, each conversion module comprising a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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公开(公告)号：US10411473B2
公开(公告)日：2019-09-10
申请号：US15399001
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
Abstract: Power converters for use in energy systems are included. For instance, an energy system can include an input power source configured to provide a low voltage direct current power. The energy system can include a power converter configured to convert the low voltage direct current power provided by the input power source to a medium voltage multiphase alternating current output power suitable for provision to an alternating current power system. The power converter can include a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the energy system.
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公开(公告)号：US20180198393A1
公开(公告)日：2018-07-12
申请号：US15399824
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
CPC classification number: H02P9/10 , H02K7/183 , H02K11/33 , H02M7/4807 , H02M2001/0077 , H02M2001/325 , H02P9/00 , H02P9/007 , H02P27/08
Abstract: Systems and methods for protecting the redundancy of inverter blocks are provided. In one example implementation, a system can include a plurality of inverter blocks. Each inverter block can include a first conversion entity configured to convert DC power to AC power, a second conversion entity configured to convert AC power to DC power, and a third conversion entity configured to convert DC power to AC power. An isolation transformer can be coupled between the first conversion entity and the second conversion entity. The system includes an inverter block switching element coupled to an output of each inverter block. A protection element is disposed in each inverter block. The system includes one or more control devices configured to isolate at least one of the plurality of inverter blocks based at least in part on a status of the protection element disposed in the inverter block.
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公开(公告)号：US20180198392A1
公开(公告)日：2018-07-12
申请号：US15399803
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
CPC classification number: H02P9/007 , F03D9/255 , H02K7/1838 , H02K11/02 , H02K11/40
Abstract: Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase alternating current power at a first voltage and a power converter comprising one or more silicon carbide MOSFETs and an isolation transformer. The power converter can be configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power generation system can be electrically grounded to shunt a leakage current associated with the isolation transformer of the power converter to a ground.
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公开(公告)号：US20180187652A1
公开(公告)日：2018-07-05
申请号：US15399067
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
CPC classification number: F03D9/255 , F03D9/25 , H02M5/4585 , H02M2001/0077 , Y02B70/1483 , Y02E10/725 , Y02E10/76
Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert the low voltage alternating current power provided on the stator bus to a medium voltage multiphase alternating current output power suitable for provision to the electrical grid. The power converter includes a plurality of conversion modules, each conversion module comprising a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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