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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
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.
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2.发明申请公开(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
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.
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公开(公告)号：US20200328705A1
公开(公告)日：2020-10-15
申请号：US16303712
申请日：2017-06-16
Applicant: General Electric Company
Inventor： Govardhan GANIREDDY , Amol Rajaram KOLWALKAR , Somakumar RAMACHANDRAPANICKER , Arvind Kumar TIWARI , Sharath Sridhar ARAMANEKOPPA , Subbarao TATIKONDA , Yashomani Y. KOLHATKAR
Abstract: A power generation system is disclosed. The power generation system includes an engine coupled to a DFIG and a PV power source to supply a solar electrical power to the DFIG (108). The power generation system also includes a controller configured to operate the engine at a first operating speed corresponding to a first determined efficiency of the engine for a first desired level of an engine power in a first operating condition; or operate the engine at a second operating speed corresponding to a desired level of the second electrical power to be absorbed by a rotor winding and a second desired level of the engine power in a second operating condition, wherein the determined first efficiency is substantially close to a first maximum achievable efficiency of the engine. Method of operating the power generation system is also disclosed.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20180123398A1
公开(公告)日：2018-05-03
申请号：US15794524
申请日：2017-10-26
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kapil JHA , Arun Kumar RAGHUNATHAN , Arvind Kumar TIWARI , Deepak ARAVIND
CPC classification number: H02J50/12 , H02J7/025 , H02J50/80 , H02M3/33569 , H02M3/337 , Y02B70/1433
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit for converting a first DC voltage of an input power to a first AC voltage, a contactless power transfer unit for transmitting the input power having the first AC voltage, and a second converting unit for transmitting the power having a second DC voltage corresponding to the first AC voltage to an electric load. Additionally, the wireless power transfer system includes an active voltage tuning unit for controlling the second DC voltage based on a difference between the second DC voltage and a reference voltage and at least one among a difference between the resonant frequency and the constant operating frequency and a difference between a phase angle of the first AC voltage and a phase angle of an AC current.
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公开(公告)号：US20180097351A1
公开(公告)日：2018-04-05
申请号：US15717855
申请日：2017-09-27
Applicant: General Electric Company
Inventor： Kapil JHA , Arvind Kumar TIWARI , Yash Veer SINGH , Olive RAY
CPC classification number: H02H3/20 , H02H1/0007 , H02H7/22 , H02J50/10 , H02J50/12 , H02J50/80 , H02M3/335 , H02M3/33576
Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to an AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to transmit the input power having the AC voltage. Also, the wireless power transfer system includes a second converting unit configured to convert the AC voltage to a second DC voltage and transmit the input power having the second DC voltage to an electric load. Additionally, the wireless power transfer system includes a switching unit configured to decouple the electric load from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.
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6.发明申请公开(公告)号：US20190190425A1
公开(公告)日：2019-06-20
申请号：US16322792
申请日：2017-07-18
Applicant: General Electric Company
Inventor： Arvind Kumar TIWARI
CPC classification number: H02P21/22 , G01M15/00 , G01R31/343 , G01R31/44 , H02P9/007 , H02P21/20 , H02P29/0241 , H02P2101/25 , H02S10/10
Abstract: A system for health monitoring of a prime mover coupled to a doubly-fed induction generator is disclosed. The DFIG includes a generator having a rotor winding and a stator winding. The system includes first sensors coupled to the stator winding to generate three-phase stator current signals, and second sensors coupled to the rotor winding to generate three-phase rotor current signals. Furthermore, the system includes a signal processor operably coupled to the first sensors and the second sensors and configured to determine a torque profile of the prime mover based on the three-phase stator current signals and the three-phase rotor current signals. Moreover, the signal processor is configured to detect an anomaly associated with the prime mover if the determined torque profile is abnormal.
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公开(公告)号：US20160111872A1
公开(公告)日：2016-04-21
申请号：US14918950
申请日：2015-10-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Amol Rajaram KOLWALKAR , Arvind Kumar TIWARI , Rajendra NAIK , Sanjay VIJAYARAGHAVAN
CPC classification number: H02H7/067 , H02J3/00 , H02J3/18 , H02J3/32 , H02J11/00 , H02J2003/001 , H02K7/1823 , H02P9/006 , Y02E40/30
Abstract: A power generation system is provided. The system includes a prime mover for transforming a first energy to a second energy. The system also includes an induction generator operatively coupled to the prime mover and configured to generate electrical power using the second energy. The system further includes an inverter electrically coupled to the induction generator for controlling a terminal voltage of the induction generator during a grid-loss condition. The system also includes a power dissipating device operatively coupled to the inverter for dissipating power generated by the induction generator during the grid-loss condition.
Abstract translation: 提供发电系统。 该系统包括用于将第一能量转换为第二能量的原动机。 该系统还包括感应发电机，其可操作地耦合到原动机并且被配置为使用第二能量产生电力。 该系统还包括电耦合到感应发电机的逆变器，用于在电网损失状态期间控制感应发电机的端电压。 该系统还包括可操作地耦合到逆变器的功率耗散装置，用于在电网损失状态期间耗散由感应发电机产生的功率。
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公开(公告)号：US20180313277A1
公开(公告)日：2018-11-01
申请号：US16023302
申请日：2018-06-29
Applicant: General Electric Company
Inventor： Arijit BANERJEE , Ajith Kuttainnair KUMAR , Arvind Kumar TIWARI , Rupam MUKHERJEE , Somakumar RAMACHANDRAPANICKER , Paul Lloyd FLYNN , Boyanapally SRILATHA
CPC classification number: F02D29/06 , B60K6/46 , B60W20/50 , B60W2030/206 , F02D41/0097 , F02D41/1498 , F02D41/22 , F02D41/221 , F02D2041/288 , F02D2200/1004 , F02D2200/1006 , F02D2200/101 , F02D2200/1012 , F02D2250/24 , Y02T10/6217
Abstract: Methods and systems are provided for an engine. A condition of the engine may be diagnosed based on information provided by signals from a generator operationally connected to the engine and/or other signals associated with the engine. Different types of degradation may be distinguished based on discerning characteristics within the information. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.
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