-
公开(公告)号：US20180363628A1
公开(公告)日：2018-12-20
申请号：US15623493
申请日：2017-06-15
Applicant: General Electric Company
Inventor： Ryan Andrew Risdon , Jignesh Govindlal Gandhi , Mark Edward Cardinal , Govardhan Ganireddy , Arne Koerber
IPC: F03D7/04 , F03D7/02 , G05B19/416
Abstract: A method for operating a wind turbine during partial load operation includes determining a power output of the wind turbine. The method also includes determining whether the power output is below a rated power of the wind turbine. If the power output is at the rated power, the method includes maintaining a speed set point of the wind turbine equal to a rated speed set point. However, if the power output is below the rated power, then the method includes varying, via a controller, the speed set point of the wind turbine as a function of a torque of the wind turbine in a non-monotonic torque-speed relationship.
-
公开(公告)号：US10103665B2
公开(公告)日：2018-10-16
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
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.
-
53.发明申请公开(公告)号：US20180219501A1
公开(公告)日：2018-08-02
申请号：US15422604
申请日：2017-02-02
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Dong Dong , Govardhan Ganireddy , David Smith
CPC classification number: H02P9/007 , H02M1/08 , H02M1/44 , H02M3/33584 , H02M3/337 , H02M7/4807 , H02M7/49 , H02M2001/0058 , H02M2007/4815
Abstract: Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. The plurality of switching devices can include one or more silicon carbide MOSFETs. A control method can include providing, by a control system, one or more gating commands to a first inverter block in the plurality of inverter blocks. The control method can further include implementing, by the control system, a gating command delay to generate a first delayed gating command based at least in part on the one or more gating commands. The control method can further include providing, by the control system, the first delayed gating command to a second inverter block in the plurality of inverter blocks.
-
公开(公告)号：US20180205335A1
公开(公告)日：2018-07-19
申请号：US15405712
申请日：2017-01-13
Applicant: General Electric Company
Inventor： Dong Dong , Robert Gregory Wagoner , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju
IPC: H02P9/10 , H02M5/458 , H02M1/084 , H02M1/32 , H02J3/38 , F03D7/04 , H02P9/00 , H02K7/18 , H02K11/33
CPC classification number: H02M5/4585 , F03D7/0272 , F03D7/042 , H02J3/386 , H02K7/183 , H02K11/33 , H02M3/33584 , H02M5/458 , H02M7/4807 , H02M7/5387 , H02M7/797 , H02M2001/0032 , H02M2001/007 , H02P9/007 , Y02B70/16 , Y02E10/763
Abstract: Systems and methods for operating a power converter are provided. A DC to AC converter can include an inner converter and an outer converter. The inner converter can include an isolation transformer a first plurality of switching devices. The outer converter can include a second plurality of switching devices. A control method can include determining an output voltage of the outer converter. The control method can further include controlling operation of the inner converter based at least in part on the output voltage of the outer converter.
-
公开(公告)号：US20180191166A1
公开(公告)日：2018-07-05
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
CPC classification number: H02J3/383 , H02J3/386 , H02J7/0068 , H02M7/49 , H02M7/797 , H02M2001/0058 , H02M2001/0077 , Y02B70/1483 , Y02B70/1491 , Y02E10/563 , Y02E10/763
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.
-
Patent Agency Ranking
56.发明授权公开(公告)号：US09866160B2
公开(公告)日：2018-01-09
申请号：US14955094
申请日：2015-12-01
Applicant: General Electric Company
Inventor： Zhuohui Tan , Jinping Gao , Rajni Kant Burra , Govardhan Ganireddy
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.
-
57.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。
-
公开(公告)号：US11493026B2
公开(公告)日：2022-11-08
申请号：US16880450
申请日：2020-05-21
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Steven Wade Sutherland , Rajni Kant Burra , Andrej Petricko , Dale Robert Mashtare
IPC: F03D80/80 , F03D9/25 , H02K7/18 , H02P9/00 , H02P101/15
Abstract: An electrical system for a wind turbine having a reduced uptower footprint and method for achieving the same are provided. Accordingly, the electrical system includes a plurality of electrical subsystems having a plurality of electrical subsystem assemblies. At least one electrical subsystem assembly is integrated with the generator housing. Additionally, the electrical subsystem assembly is coupled between the stator or the rotor of the generator and the generator output connection. The electrical system incorporating the electrical subsystem assembly with the generator housing has a reduced uptower footprint relative to a nominal design of an electrical system.
-
公开(公告)号：US11114963B2
公开(公告)日：2021-09-07
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.
-
公开(公告)号：US10974607B2
公开(公告)日：2021-04-13
申请号：US15643537
申请日：2017-07-07
Applicant: General Electric Company
Inventor： Ajith Kuttannair Kumar , Govardhan Ganireddy , Shahid Ali , Prashanth Manikumar Chennamsetty
Abstract: A power system is disclosed. The power system includes a first power generating unit. The first power generating unit includes a first power converting subunit and a first control unit coupled to the first power converting subunit, where the first control unit is configured to regulate a voltage of the first power generating unit. The power system further includes a second power generating unit coupled to the first power generating unit and a load, where the second power generating unit includes a second power converting subunit and a second control unit coupled to the second power converting subunit, wherein the second control unit is configured to control a current of the second power generating unit to share a quantity of electrical output current flowing through the load among the first and second power generating units.
-
-
-
-
-
-
-
-
-
Search Results
76
records
(took 0.019 seconds)
