公开(公告)号：US11949240B2

公开(公告)日：2024-04-02

申请号：US17810935

申请日：2022-07-06

Applicant: General Electric Company

Inventor： Kapil Jha ,  Pradeep Vijayan ,  Yash Veer Singh

IPC: H02J50/10 ,  H01F38/14 ,  H02J50/80 ,  H04B5/00

CPC classification number: H02J50/10 ,  H01F38/14 ,  H02J50/80 ,  H04B5/0037

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 a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to regulate the second DC voltage across the electric load if the second DC voltage across the electric load is greater than a voltage reference value.

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

IPC: H02M5/453 ,  H02M5/458 ,  H02P27/08

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.

公开(公告)号：US20210328531A1

公开(公告)日：2021-10-21

申请号：US17269136

申请日：2019-08-21

Applicant: General Electric Company

Inventor： Kapil Jha ,  Olive Ray

IPC: H02P9/00 ,  H02M5/458 ,  H02M1/088 ,  F03D9/25

Abstract: A control device (110) includes a first multiplexing unit (202) configured to segregate a first PWM signal having a first switching frequency into a second PWM signal having a second switching frequency and a third PWM signal having a third switching frequency. Also, the control device (110) includes an integrator unit (204) configured to generate a first integrated signal and a second integrated signal based on the second PWM signal and the third PWM signal, and a modulator unit (206) configured to receive the first integrated signal and the second integrated signal and generate a modulation signal based on the first integrated signal and the second integrated signal. Furthermore, the control device (110) includes a generator unit (208) configured to receive the modulation signal and generate a fourth PWM signal having a fourth switching frequency different from the first switching frequency based on the modulation signal.

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

IPC: H02P29/50 ,  H02P9/00 ,  F03D9/25

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.

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

IPC: H02H3/20 ,  H02J50/80 ,  H02J50/10 ,  H02H1/00 ,  H02H7/22 ,  H02M3/335 ,  H02J50/12

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.

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

IPC: H02J50/12 ,  H02M3/335 ,  H02M3/337

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.

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

IPC: H02J50/12 ,  H02J50/80 ,  H02M3/335 ,  H02M3/337 ,  H02J7/02

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.

公开(公告)号：US20240275209A1

公开(公告)日：2024-08-15

申请号：US18583387

申请日：2024-02-21

Applicant: General Electric Company

Inventor： Kapil Jha ,  Pradeep Vijayan ,  Yash Veer Singh

IPC: H02J50/10 ,  H01F38/14 ,  H02J50/80 ,  H04B5/79

CPC classification number: H02J50/10 ,  H01F38/14 ,  H02J50/80 ,  H04B5/79

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 a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to regulate the second DC voltage across the electric load if the second DC voltage across the electric load is greater than a voltage reference value.

公开(公告)号：US11955805B2

公开(公告)日：2024-04-09

申请号：US16880712

申请日：2020-05-21

Applicant: General Electric Company

Inventor： Kapil Jha ,  Pradeep Vijayan ,  Yash Veer Singh

IPC: H02J50/10 ,  B60L53/12 ,  H02H3/02 ,  H02H3/20 ,  H02H9/04 ,  H02J50/80 ,  H02J50/90

CPC classification number: H02J50/10 ,  B60L53/12 ,  H02J50/80 ,  H02J50/90 ,  H02H3/023 ,  H02H3/20 ,  H02H9/041

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 a first AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to receive the input power having the first AC voltage from the first converting unit and transmit the input power. Also, the wireless power transfer system includes a second converting unit configured to receive the input power from the contactless power transfer unit and convert the first AC voltage of the input power to a second DC voltage. Furthermore, the wireless power transfer system includes a switching unit configured to decouple the second converting unit from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.

公开(公告)号：US11736056B2

公开(公告)日：2023-08-22

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

IPC: H02P29/50 ,  F03D9/25 ,  H02P9/00 ,  H02P101/15

CPC classification number: H02P29/50 ,  F03D9/255 ,  H02P9/007 ,  H02P2101/15 ,  H02P2207/073

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.