公开(公告)号：US20190214824A1

公开(公告)日：2019-07-11

申请号：US16357574

申请日：2019-03-19

Applicant: General Electric Company

Inventor： Amol Rajaram KOLWALKAR ,  Somakumar RAMACHANDRAPANICKER ,  Arvind Kumar TIWARI ,  Subbarao Tatikonda

IPC: H02J3/38 ,  H02J7/35

CPC classification number: H02J3/381 ,  H02J3/383 ,  H02J3/386 ,  H02J7/35 ,  H02P9/007 ,  H02P2207/073 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763

Abstract: A power generation system is disclosed. The power generation system includes a doubly-fed induction generator (DFIG) coupled to a variable speed engine and a photo-voltaic (PV) power source. The DFIG includes a generator to generate a first electrical power based at least partially on an operating speed of the variable speed engine. The PV power source may supply a second electrical power to a Direct Current (DC) link between a rotor side converter and a line side converter of the DFIG. The generator and the line side converter are coupled to an electric grid and/or a local electrical load to supply the first electrical power and at least a portion of the second electrical power to the local electrical load.

公开(公告)号：US20190052089A1

公开(公告)日：2019-02-14

申请号：US16080253

申请日：2017-01-26

Applicant: General Electric Company

Inventor： Govardhan GANIREDDY ,  Arvind Kumar TIWARI ,  Yashomani Y KOLHATKAR ,  Somakumar RAMACHANDRAPANICKER ,  Rahul Radhakrishna PILLAI

IPC: H02J3/38 ,  H02P9/00 ,  H02K17/42 ,  H02P9/48 ,  H02P9/06

Abstract: A power generation system (101) is disclosed. The power generation system (101) includes a variable speed engine (106) and a DFIG (108) coupled thereto. The DFIG (108) includes a generator (112), a rotor side converter (114), and a line side converter (116) electrically coupled to the generator (112). The rotor side converter (114) is configured to aid in operating the generator (112) as motor to crank the variable speed engine (106). The power generation system (101) further includes a PV power source (110) and/or an energy storage device (122) electrically coupled to a DC-link (118) between the rotor side converter (114) and the line side converter (116). A method of cranking the variable speed engine is also disclosed.

公开(公告)号：US20180041066A1

公开(公告)日：2018-02-08

申请号：US15668067

申请日：2017-08-03

Applicant: General Electric Company

Inventor： Pradeep VIJAYAN ,  Somakumar RAMACHANDRAPANICKER ,  Deepak ARAVIND ,  Arun Kumar RAGHUNATHAN ,  VIshnu MAHADEVA IYER

IPC: H02J7/02 ,  H01F38/14 ,  H02J50/40 ,  H01F27/28 ,  H02J50/12

CPC classification number: H02J7/025 ,  H01F27/28 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40

Abstract: A charging pad for charging one or more receiver devices is disclosed. The charging pad includes at least one first resonator coil operable at a first frequency band and at least one second resonator coil operable at a second frequency band. Further, the charging pad includes at least one exciter coil magnetically coupled to the at least one first resonator coil and the at least one second resonator coil. In addition, the charging pad includes an excitation unit operationally coupled to the at least one exciter coil and configured to drive the at least one first resonator coil and the at least one second resonator coil via the at least one exciter coil.

公开(公告)号：US20180041065A1

公开(公告)日：2018-02-08

申请号：US15667444

申请日：2017-08-02

Applicant: General Electric Company

Inventor： Pradeep VIJAYAN ,  Somakumar RAMACHANDRAPANICKER ,  Deepak ARAVIND ,  Arun Kumar RAGHUNATHAN ,  Vishnu Mahadeva IYER

IPC: H02J7/02 ,  H02M7/5387 ,  H01F38/14 ,  H02J50/40 ,  H02J50/10

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J50/10 ,  H02J50/40 ,  H02M7/53871

Abstract: A charging pad for charging one or more receiver devices is disclosed. The charging pad includes at least one first frequency coil operable at a first frequency band. Further, the charging pad includes at least one second frequency coil operable at a second frequency band different from the first frequency band. Also, the charging pad includes an excitation unit operationally coupled to the at least one first frequency coil and the at least one second frequency coil and configured to drive the at least one first frequency coil and the at least one second frequency coil.

公开(公告)号：US20160105036A1

公开(公告)日：2016-04-14

申请号：US14878554

申请日：2015-10-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Arun Kumar RAGHUNATHAN ,  Somakumar RAMACHANDRAPANICKER ,  Suma Memana Narayana BHAT ,  Rijin SASEENDRAN ,  Adnan Kutubuddin BOHORI ,  Dinkar AGRAWAL

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J5/005 ,  H01F38/14 ,  H02J7/0042 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: A system including a primary coil assembly is provided. The primary coil assembly is configured to operate at a first resonant frequency having a first bandwidth; wherein a difference between the first resonant frequency and a system frequency is at least two times the first bandwidth, where the first resonant frequency is selected such that upon energizing the primary coil assembly at the system frequency, a primary current is induced in the primary coil assembly, which is at least ten times lesser than a system current.

Abstract translation: 提供了包括初级线圈组件的系统。 初级线圈组件被配置为在具有第一带宽的第一谐振频率下工作; 其中所述第一谐振频率和系统频率之间的差异是所述第一带宽的至少两倍，其中所述第一谐振频率被选择为使得在所述初级线圈组件以系统频率通电时，在所述初级线圈中感应出初级电流 组装，比系统电流少至少十倍。