公开(公告)号：WO2019094179A1

公开(公告)日：2019-05-16

申请号：PCT/US2018/056850

申请日：2018-10-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KOLHATKAR, Yashomani Y. ,  TIWARI, Arvind Kumar

IPC: H02P9/00

CPC classification number: H02P9/007 ,  H02P9/00

Abstract: A power generation system (100, 300, 400) is presented. The power generation system (100, 300, 400) includes a doubly-fed induction generator (DFIG) (106), a point of common coupling (PCC) (116) electrically coupled to a stator winding (130) of the DFIG (106), a rotor-side converter (108) electrically connected to a rotor winding (132) of the DFIG (106), and a line-side converter (110) electrically connected to the PCC (116). The line-side converter (110) is also electrically connected to the rotor-side converter (108) via a direct-current (DC) link (114). The DC-link (114) includes a plurality of electrical conductors (208, 210, 212), where one electrical conductor of the plurality of electrical conductors (208, 210, 212) is connected to a first ground terminal (140). Moreover, the power generation system (100, 300, 400) includes a power source (112) electrically coupled to the DC-link (114).

公开(公告)号：WO2019103837A1

公开(公告)日：2019-05-31

申请号：PCT/US2018/059343

申请日：2018-11-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： TIWARI, Arvind Kumar ,  KOLHATKAR, Yashomani Y.

IPC: H02J3/38 ,  H02J3/08 ,  H02P9/00

Abstract: A power generation system (100, 300) is presented. The power generation system (100, 300) includes a reference direct current (DC) bus (104) and a plurality of doubly-fed induction generator (DFIG) based power generation sub-systems (102-1, 102-2) electrically coupled in parallel with each other via the reference DC-bus (104). Each of the plurality of DFIG based power generation sub-systems (102-1, 102-2) includes a DFIG (204), a rotor-side converter (206) and a line-side converter (208) coupled to the DFIG (204). The line-side converter (208) and the rotor-side converter (206) are electrically coupled to each other via a local DC-bus (116-1, 116-2). The local DC-bus (116-1, 116-2) of each of the plurality of DFIG based power generation sub-systems (102-1, 102-2) is coupled to the reference DC-bus (104). Moreover, the power generation system (100, 300) includes an auxiliary power source (108) and an energy storage device (110) electrically coupled to the reference DC-bus (104).

公开(公告)号：WO2019195503A1

公开(公告)日：2019-10-10

申请号：PCT/US2019/025711

申请日：2019-04-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GANIREDDY, Govardhan ,  SCHNETZKA, Harold Robert ,  WAGONER, Robert Gregory ,  RIDENOUR, Amy Marlene ,  JHA, Kapil ,  KOLHATKAR, Yashomani Y. ,  TIWARI, Arvind Kumar

IPC: H02M1/12 ,  H02M5/458 ,  H02M7/23 ,  H02M7/493 ,  H02M7/5387 ,  H02M1/00 ,  H02M7/219

Abstract: Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, an electrical power system (100) connected to a power grid (190) can include a generator (120) comprising a stator and a rotor, the stator connected to the power grid via a stator power path, and a power converter (130). The power converter (130) can include a line-side converter (134) coupled to the power grid (190) via a converter power path and a rotor-side converter (132) coupled to a rotor bus (124) of the rotor and the line-side converter (134) via a DC link, the rotor-side converter (132) configured to convert a DC power on the DC link to an AC signal for the rotor bus (124). The power system (100) can also include an active filter (250) comprising one or more active controlled components, the active filter (250) being coupled in parallel with the rotor-side converter (132) to reduce harmonics of the electrical power system (100).

公开(公告)号：WO2018038911A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/045905

申请日：2017-08-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： CHENNAMSETTY, Prashanth, Manikumar ,  O'STEEN, Rien William ,  TIWARI, Arvind Kumar ,  VIJAYAN, Pradeep

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/32

CPC classification number: H02M3/33592 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0048 ,  H02M2001/327 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: A system including a converter is disclosed. The converter includes a first switch having one or more first controllable switches coupled in parallel across at least one diode. A first controlling unit is operatively coupled to the converter. The first controlling unit is configured to determine a temperature of the one or more first controllable switches. The first controlling unit is further configured to compare the determined temperature of the one or more first controllable switches with a transition temperature at which a first power loss of the one or more first controllable switches is equal to a second power loss of the at least one diode and control a switching state of the one or more first controllable switches based on the comparison of the determined temperature with the transition temperature.

Abstract translation: 公开了包括转换器的系统。 该转换器包括第一开关，该第一开关具有跨越至少一个二极管并联耦合的一个或多个第一可控开关。 第一控制单元可操作地耦合到转换器。 第一控制单元被配置为确定一个或多个第一可控开关的温度。 所述第一控制单元进一步被配置为将所述一个或多个第一可控开关的所确定的温度与所述一个或多个第一可控开关的第一功率损耗等于所述至少一个第二可控开关的第二功率损失的转变温度进行比较 二极管，并且基于所确定的温度与转变温度的比较来控制一个或多个第一可控开关的开关状态。

公开(公告)号：WO2021188873A1

公开(公告)日：2021-09-23

申请号：PCT/US2021/023110

申请日：2021-03-19

Applicant: GENERAL ELECTRIC COMPANY ,  PAGAN, Karen Emanuelle Hernandez

Inventor： PADMARAO, Veena ,  TIWARI, Arvind Kumar ,  VYAS, Aditya

IPC: H02J3/00 ,  H02J3/32 ,  H02J3/38 ,  H02J3/48 ,  H02J3/50 ,  H02J3/16

Abstract: A system for controlling a hybrid power generation plant is provided. The system is programmed to receive current conditions at the plurality of power generating assets including a first asset type and a second asset type, determine a forecast for a period of time based at least in part on the current conditions, determine that a first asset of the first asset type of the plurality of power generating assets has an available uprate margin for production of a first amount of active power, determine that a second asset of the second asset type of the plurality of power generating assets has capacity to generate a second amount of reactive power, instruct the first asset to reduce production of reactive power by the second amount and increase production of active power by the first amount, and instruct the second asset to increase production of reactive power by the second amount.

公开(公告)号：WO2020123799A1

公开(公告)日：2020-06-18

申请号：PCT/US2019/065970

申请日：2019-12-12

Applicant: GENERAL ELECTRIC COMPANY ,  BURRA, Rajni ,  SAGI, Deepak Raj ,  TIWARI, Arvind Kumar

Inventor： BURRA, Rajni ,  SAGI, Deepak Raj ,  TIWARI, Arvind Kumar

IPC: H02J7/35 ,  H02J3/48 ,  H02J3/00 ,  G06Q50/06

Abstract: A hybrid power plant including a plurality of power sources and controllers, a hybrid plant controller, and a computing system. The controllers operate the power sources according to operating set points. The hybrid plant controller transmits the operating set points to the controllers. The computing system is coupled to the hybrid plant controller and receives a first set of input parameters from a first subscriber, and carries out a first level of services to which the first subscriber subscribes to determine operating parameters for the first subscriber. The computing system receives a second set of input parameters from a second subscriber and carries out a second level of services to which the second subscriber subscribes to determine operating parameters for the second subscriber. The computing system then computes the operating set points based on aggregate operating parameters for the first and second subscribers.

公开(公告)号：WO2020051264A1

公开(公告)日：2020-03-12

申请号：PCT/US2019/049629

申请日：2019-09-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： TIWARI, Arvind Kumar ,  KOLHATKAR, Yashomani Yashodhan ,  RAO, Veena Padma ,  VENKITANARAYANAN, Vaidhya Nath

IPC: H02J3/38 ,  H02J3/18 ,  H02J3/50

Abstract: A method of operating a power generation system (100) employing a generator (110) and a solar power source (120) is provided. The method includes the steps of determining (310) if a wind speed is less than a cut-in speed, calculating (315) a reactive power demand for an electrical grid (102), calculating (320) a reactive power capability of a line side converter (140), determining (325) if the reactive power demand is greater than the reactive power capability, and calculating (330) a reactive power capability of the line side converter (140) and a rotor side converter (130). The method also includes the steps of determining (335) if the reactive power demand is greater than the reactive power capability of the line side converter (140) and the rotor side converter (130), and reducing solar power generation or reconfiguring the line side converter (140) and/or the rotor side converter (130) to meet reactive power demand.

公开(公告)号：WO2018063535A1

公开(公告)日：2018-04-05

申请号：PCT/US2017/046691

申请日：2017-08-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KOLHATKAR, Yashomani Yashodhan ,  RAMACHANDRAPANICKER, Somakumar ,  TIWARI, Arvind Kumar ,  DHALE, Sumedh Bhaskar ,  TATIKONDA, Subbarao

IPC: H02J1/14 ,  H02J3/14 ,  H02J3/38

Abstract: An electronic sub-system (104, 204, 304) is presented. The electronic sub-system includes (104, 204, 304) a first alternating current (AC)-direct current (DC) converter (110, 210) and one or more second AC-DC converters (112, 212, 215) electrically coupled to the first AC-DC converter (110, 210) via a DC-link (114, 214). The electronic sub-system (104, 204, 304) is electrically coupled to at least one of an auxiliary power source (108, 208) to receive an auxiliary electrical power or a local power grid (116) to receive a local grid power, and wherein the at least one second AC-DC converter (112, 212) is configured to supply a variable frequency electrical power to at least one variable frequency electrical device (106, 206) at a frequency determined based on a level of the auxiliary electrical power, the local grid power, or a sum of the auxiliary electrical power and the local grid power.

Abstract translation: 呈现电子子系统（104,204,304）。 该电子子系统包括电耦合的第一交流（AC） - 直流（DC）转换器（110,210）和一个或多个第二AC-DC转换器（112,212,215）的（104,204,304） 经由DC链路（114,214）连接到第一AC-DC转换器（110,210）。 电子子系统（104,204,304）电耦合到辅助电源（108,208）中的至少一个以接收辅助电力或本地电力网（116）以接收本地电网电力， 并且其中，所述至少一个第二AC-DC变换器（112,212）被配置为以基于所述辅助电气的电平确定的频率向至少一个变频电气装置（106,206）供应变频电力 功率，本地电网功率，或者辅助电功率和本地电网功率的总和。