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41.发明申请公开(公告)号：US20160197559A1
公开(公告)日：2016-07-07
申请号：US14955094
申请日：2015-12-01
Applicant: General Electric Company
Inventor： Zhuohui TAN , Jinping GAO , Rajni Kant BURRA , Govardhan Ganireddy
IPC: H02M5/458
CPC classification number: H02P9/007 , H02J3/386 , H02M5/4585 , H02P23/26 , Y02E10/763
Abstract: A system includes a source side converter for being electrically coupled to a generator of a power source, a line side converter for being electrically coupled to a power network, a DC link coupled between the source side converter and the line side converter, and a controller for generating source side switching signals based on a current or torque of the generator and a virtual impedance signal for system damping or reactive power compensation when at least one detected signal of the system is not normal. A method for controlling the system is also included.
Abstract translation: 一种系统包括用于电耦合到电源的发生器的源极侧转换器，用于电耦合到电力网络的线路侧转换器，耦合在源极侧转换器和线路侧转换器之间的DC链路，以及控制器 用于当所述系统的至少一个检测信号不正常时，基于所述发电机的电流或扭矩产生源侧开关信号和用于系统阻尼或无功功率补偿的虚拟阻抗信号。 还包括用于控制系统的方法。
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42.发明授权公开(公告)号：US11223208B2
公开(公告)日：2022-01-11
申请号：US16640414
申请日：2017-08-21
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Arvind Kumar Tiwari , Yashomani Y. Kolhatkar
Abstract: A hybrid power generation system is presented. The hybrid power generation system includes a generator operable via a prime mover and configured to generate an alternating current (AC) power. The hybrid power generation system further includes a first power converter electrically coupled to the generator, where the first power converter includes a direct current (DC) link. Furthermore, the hybrid power generation system includes a DC power source configured to be coupled to the DC-link. Moreover, the hybrid power generation system also includes a second power converter. Additionally, the hybrid power generation system includes an integration control sub-system operatively coupled to the first power converter and the DC power source. The integration control sub-system includes at least one bypass switch disposed between the DC power source and the DC-link and configured to connect the DC power source to the DC-link via the second power converter or bypass the second power converter.
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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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44.发明申请公开(公告)号：US20200059176A1
公开(公告)日：2020-02-20
申请号：US16608949
申请日：2018-04-09
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Arvind Kumar Tiwari , Yashomani Y Kolhatkar , Anthony Michael Klodowski , John Leo Bollenbecker , Harold Robert Schnetzka , Robert Gregory Wagoner , Veena Padmarao
Abstract: A power generation system (100, 200, 300, 400) is presented. The power generation system includes a prime mover (102), a doubly-fed induction generator (DFIG) (104) having a rotor winding (126) and a stator winding (122), a rotor-side converter (106), a line-side converter (108), and a secondary power source (110, 401) electrically coupled to a DC-link (128). Additionally, the power generation system includes a control sub-system (112, 212, 312) having a controller, and a plurality of switching elements (130, and 132 or 201). The controller is configured to selectively control switching of one or more switching elements (130, and 132 or 201) based on a value of an operating parameter corresponding to at least one of the prime mover, the DFIG, or the secondary power source to connect the rotor-side converter in parallel to the line-side converter to increase an electrical power production by the power generation system.
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公开(公告)号：US20190312502A1
公开(公告)日：2019-10-10
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
Abstract: Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, an electrical power system connected to a power grid can include a generator comprising a stator and a rotor, the stator connected to the power grid via a stator power path, and a power converter. 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 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 comprising one or more active controlled components, the active filter being coupled in parallel with the rotor-side converter to reduce harmonics of the electrical power system.
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Patent Agency Ranking
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：US20190103747A1
公开(公告)日：2019-04-04
申请号：US15719923
申请日：2017-09-29
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Rajni Kant Burra , Deepak Raj Sagi
Abstract: An electrical power system includes a system-level controller and a plurality of clusters of subsystems defining a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The system further includes a cluster transformer connecting each cluster to the power grid and a plurality of cluster-level controllers communicatively coupled with the system-level controller. Each of the clusters is communicatively coupled with one of the cluster-level controllers. Thus, the system-level controller regulates system-level active and/or reactive power based on required active or reactive power for the system, respectively, and compares the system-level active or reactive power with preferred values thereof. Further, the system-level controller receives feedback signal(s) from the cluster-level controllers, generates cluster-level power command(s) based on the comparison and the feedback signal(s), and sends the cluster-level power commands to the cluster-level controllers.
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公开(公告)号：US10186995B2
公开(公告)日：2019-01-22
申请号：US15405752
申请日：2017-01-13
Applicant: General Electric Company
Inventor： Dong Dong , Robert Gregory Wagoner , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju , Rui Zhou
Abstract: Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A DC to AC converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. A control method can include identifying one of a plurality of switching patterns for operation of the inverter block for each inverter block. Each switching pattern can include a plurality of switching commands. The control method can further include controlling each inverter block based on the identified switching pattern for the inverter block. The control method can further include rotating the switching patterns among the plurality of inverter blocks.
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公开(公告)号：US20180205334A1
公开(公告)日：2018-07-19
申请号：US15405752
申请日：2017-01-13
Applicant: General Electric Company
Inventor： Dong Dong , Robert Gregory Wagoner , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju , Rui Zhou
CPC classification number: H02P9/007 , H02J3/382 , H02J3/383 , H02J3/386 , H02K7/183 , H02M5/458 , H02M5/4585 , H02M7/493 , H02M2001/0048 , H02P27/08 , Y02B70/1483 , Y02B70/1491
Abstract: Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A DC to AC converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. A control method can include identifying one of a plurality of switching patterns for operation of the inverter block for each inverter block. Each switching pattern can include a plurality of switching commands. The control method can further include controlling each inverter block based on the identified switching pattern for the inverter block. The control method can further include rotating the switching patterns among the plurality of inverter blocks.
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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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