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公开(公告)号：US11296612B2
公开(公告)日：2022-04-05
申请号：US16730301
申请日：2019-12-30
Applicant: General Electric Company
Inventor： Joseph Kiran Banda , Kapil Jha , Hridya Ittamveettil , Arvind Kumar Tiwari
Abstract: A method for controlling a voltage source power converter of a renewable energy power conversion system includes providing the voltage source power converter having, at least, a rotor-side converter and a line-side converter. The method also includes generating, via a converter controller, a first set of switching pulses based on a third-harmonic phase opposition carrier-based pulse width modulation (PO_CB_PWM) scheme. Further, the method includes generating, via the converter controller, a second set of switching pulses based on a third-harmonic in phase carrier-based pulse width modulation (IP_CB_PWM) scheme. As such, the method includes implementing, via the converter controller, a pulse-width modulation scheme for the rotor-side and line-side converters using the first and second sets of switching pulses, respectively, to obtain an output voltage from the voltage source converter to a desired magnitude, shape, and/or frequency.
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公开(公告)号：US20210296898A1
公开(公告)日：2021-09-23
申请号：US16824569
申请日：2020-03-19
Applicant: General Electric Company
Inventor： Veena Padmarao , Arvind Kumar Tiwari , Aditya Vyas , Karen Emanuelle Hernandez Pagan
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.
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公开(公告)号：US20200382046A1
公开(公告)日：2020-12-03
申请号：US16426106
申请日：2019-05-30
Applicant: General Electric Company
Inventor： Kapil Jha , Yashomani Yashodhan Kolhatkar , Arvind Kumar Tiwari , Harold R. Schnetzka
Abstract: A method for operating a power system connected to a power grid includes providing an active filter in the converter power path. Further, the method includes determining a change in attenuation of harmonics of the power system over a predetermined frequency spectrum that is needed to comply with one or more grid code requirements of the power grid. Thus, the method includes actively controlling, via a controller, the active filter to provide the change to the attenuation of the harmonics of the power system so as to mitigate the harmonics of the power system.
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公开(公告)号：US10790668B1
公开(公告)日：2020-09-29
申请号：US16403870
申请日：2019-05-06
Applicant: General Electric Company
Inventor： Kasi Viswanadha Raju Gadiraju , Olive Ray , Jayanti Navilgone Ganesh , Arvind Kumar Tiwari
IPC: F03D7/00 , H02J3/16 , H02J3/18 , H02P9/00 , H02M5/458 , H02J3/38 , H02P9/10 , F03D7/02 , F03D9/25 , H02J3/24 , H02P101/15
Abstract: A method for operating a wind turbine system, and associated system, provides real and reactive power to a grid. The wind turbine system includes a generator with a power converter and an integrated reactive power compensation device. A total reactive power demand (Qcmd) is made on the wind turbine system at a first grid state, and is allocated to generator reactive power (Qg) and compensation device reactive power (Qmvb). A first reactive power droop scheme is determined that includes a reactive power droop value applied to one or both of the control loops for (Qg) and (Qmvb) at the first grid state. Upon detection of a grid fault, the first reactive power droop scheme is changed to a second reactive power droop scheme by changing the reactive power droop values applied to one or both of the (Qg) and (Qmvb) control loops during recovery from the grid fault.
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公开(公告)号：US10700510B2
公开(公告)日：2020-06-30
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
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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Patent Agency Ranking
46.发明申请公开(公告)号：US20190356171A1
公开(公告)日：2019-11-21
申请号：US16528306
申请日：2019-07-31
Applicant: General Electric Company
Inventor： Kapil Jha , Arun Kumar Raghunathan , Arvind Kumar Tiwari , Deepak Aravind
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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47.发明授权公开(公告)号：US10411516B2
公开(公告)日：2019-09-10
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
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：US20180187653A1
公开(公告)日：2018-07-05
申请号：US15663603
申请日：2017-07-28
Applicant: General Electric Company
Inventor： Yashomani Y. Kolhatkar , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju , Rajni Kant Burra , Arvind Kumar Tiwari , John Leo Bollenbecker
Abstract: A hybrid power generation system is presented. The system includes a first power generation subsystem including a prime mover driving a generator including a rotor and a stator, one or more first conversion units coupled to at least one of the rotor and the stator, a first direct current (DC) link, and one or more second conversion units coupled to a corresponding one or more first conversion units via the first DC link. The system includes one or more second power generation subsystems coupled to the first power generation subsystem and one or more power conversion subunits including one or more first bridge circuits coupled to a corresponding one or more second bridge circuits via one or more transformers, where at least one of the one or more second power generation subsystems and the first power generation subsystem includes the one or more power conversion subunits.
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公开(公告)号：US09859716B2
公开(公告)日：2018-01-02
申请号：US14725949
申请日：2015-05-29
Applicant: General Electric Company
Inventor： Arvind Kumar Tiwari , Yashomani Y. Kolhatkar , Neeraj Agrawal
Abstract: A hybrid AC and DC distribution system includes a doubly fed induction generator (DFIG), a DC distribution bus, an AC/DC converter, an AC distribution bus, and a DC/AC converter. The DFIG includes a rotor and a stator, and is configured to generate a first AC power at the rotor and a second AC power at the stator. The AC/DC converter is coupled to the rotor and the DC distribution bus. The AC/DC converter converts the first AC power to a first DC power at a first node for delivery to a first load through the DC distribution bus. The DC/AC converter is coupled between the first node and a second node coupled to the stator and the AC distribution bus. The DC/AC converter converts the first DC power to the second AC power at the second node for delivery to a second load through the AC distribution bus.
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公开(公告)号：US20170264101A1
公开(公告)日：2017-09-14
申请号：US15066133
申请日：2016-03-10
Applicant: General Electric Company
Inventor： Yashomani Y. Kolhatkar , Silvio Colombi , Arvind Kumar Tiwari
Abstract: An uninterruptable power supply (UPS) system for providing power to a load coupled to a utility power source is provided. The UPS system includes a doubly-fed induction generator (DFIG), a rechargeable energy storage system, a first inverter, and a controller in communication with the DFIG and the first inverter. The DFIG includes a stator and a rotor coupled to the load. The stator and rotor are magnetically coupled together. The DFIG generates an auxiliary power output. The first inverter is coupled between the rotor and the rechargeable energy storage system. The controller detects a power disturbance associated with the utility power source and controls the first inverter to provide an excitation input to the rotor in response to the power disturbance. The DFIG provides the auxiliary power output to the load based on the excitation input.
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