公开(公告)号：US20240011381A1

公开(公告)日：2024-01-11

申请号：US18372967

申请日：2023-09-26

Applicant: Halliburton Energy Services, Inc.

Inventor： John Fischer ,  John J. Crosetto ,  David Kubricht ,  Richard Cheatham ,  Jeffrey Pollack ,  Chad Lawman ,  David Todd ,  Tyler Nolen

IPC: E21B43/26 ,  H02J13/00 ,  F04B17/03 ,  F04B17/06 ,  F04D13/06 ,  H02B1/52 ,  H02B5/00 ,  H02K7/18 ,  H02P27/04

CPC classification number: E21B43/2607 ,  H02J13/00036 ,  E21B43/2605 ,  F04B17/03 ,  F04B17/06 ,  F04D13/0686 ,  H02B1/52 ,  H02B5/00 ,  H02K7/18 ,  H02P27/04 ,  E21B4/02

Abstract: An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. The single VFD converts the electric power of at least 13.8 kV to a VFD rated voltage level of at least 4160V and drives the single shaft electric motor at the VFD voltage level of up to 4160V to control the operation of the single shaft electric motor and the single hydraulic pump. The single shaft electric motor drives the single hydraulic pump with the rotation at the rated RPM level of at least 750 RPM. The single hydraulic pump continuously pumps the fracking media into the well at the HP level of at least 5000 HP. The single hydraulic pump operates on a continuous duty cycle to continuously pump the fracking media at the HP level of at least 5000 HP.

公开(公告)号：US20230392461A1

公开(公告)日：2023-12-07

申请号：US18453476

申请日：2023-08-22

Applicant: National Service Alliance - Houston LLC

Inventor： John Fischer ,  David Kubricht ,  Richard Cheatham ,  Jeffrey Pollack ,  Chad Lawman ,  David Todd ,  Tyler Nolen ,  John J. Crosetto

IPC: E21B21/08 ,  H02J13/00 ,  E21B43/26 ,  E21B4/04 ,  E21B7/02 ,  F04B17/03 ,  F04B17/06 ,  F04D13/06 ,  H02B1/52 ,  H02B5/00 ,  H02K7/18 ,  H02P27/04

CPC classification number: E21B21/08 ,  H02J13/00036 ,  E21B43/2605 ,  E21B43/2607 ,  E21B4/04 ,  E21B7/022 ,  F04B17/03 ,  F04B17/06 ,  F04D13/0686 ,  H02B1/52 ,  H02B5/00 ,  H02K7/18 ,  H02P27/04 ,  E21B4/02

Abstract: Certain embodiments of the present application relate to a variable frequency drive (VFD) cabin for a pump configuration including a mobile trailer on which the VFD cabin is to be mounted. The VFD cabin generally includes a medium-voltage VFD and a ventilation system. In certain embodiments, the ventilation system is configured to generate an overpressure condition within the cabin to discourage the entry of dust and debris into the cabin. In certain embodiments, one or more components of the medium-voltage VFD are coupled to the floor of the cabin via a vibration damping system. In certain embodiments, the VFD cabin may be directly coupled to a chassis of the mobile trailer without an intervening suspension being provided between the VFD cabin and the chassis.

公开(公告)号：US20230391420A1

公开(公告)日：2023-12-07

申请号：US18248698

申请日：2021-09-24

Applicant: KILLWATT GMBH

Inventor： Hans Peter ACKERMANN ,  Volker ACKERMANN

IPC: B62M6/60 ,  H02K7/116 ,  H02K7/08 ,  H02K7/18 ,  F16H49/00

CPC classification number: B62M6/60 ,  H02K7/116 ,  H02K7/08 ,  H02K7/18 ,  F16H49/001 ,  B62K2204/00

Abstract: A narrow drive unit for a means of locomotion drivable simultaneously by drive energy provided by human muscular strength and by electric motors, comprising two harmonic gearings and two electric motors, wherein the sum of the drive energy provided by human muscular strength and the electric motors can be transmitted to an output shaft.

公开(公告)号：US11791744B2

公开(公告)日：2023-10-17

申请号：US17341203

申请日：2021-06-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuki Shoji

IPC: H02M7/219 ,  H02J50/10 ,  H02K7/18

CPC classification number: H02M7/219 ,  H02J50/10 ,  H02K7/18

Abstract: A rectifier circuit includes a switch circuit including at least one bidirectional switch and configured to rectify an alternating-current voltage of an alternating-current voltage line, and a surge suppression circuit connected to the alternating-current voltage line and configured to suppress a surge voltage of the switch circuit, where a dead time when the bidirectional switch is turned off is present.

公开(公告)号：US11773664B1

公开(公告)日：2023-10-03

申请号：US18204062

申请日：2023-05-31

Applicant: National Service Alliance—Houston LLC

Inventor： John Fischer ,  John J. Crosetto ,  David Kubricht ,  Richard Cheatham ,  Jeffrey Pollack ,  Chad Lawman ,  David Todd ,  Tyler Nolen

IPC: E21B21/08 ,  H02J13/00 ,  E21B43/26 ,  E21B4/04 ,  E21B7/02 ,  F04B17/03 ,  F04B17/06 ,  F04D13/06 ,  H02B1/52 ,  H02B5/00 ,  H02K7/18 ,  H02P27/04 ,  E21B4/02

CPC classification number: E21B21/08 ,  E21B4/04 ,  E21B7/022 ,  E21B43/2605 ,  E21B43/2607 ,  F04B17/03 ,  F04B17/06 ,  F04D13/0686 ,  H02B1/52 ,  H02B5/00 ,  H02J13/00036 ,  H02K7/18 ,  H02P27/04 ,  E21B4/02 ,  F05B2220/706 ,  F05B2240/941

Abstract: An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

公开(公告)号：US11664704B2

公开(公告)日：2023-05-30

申请号：US17816861

申请日：2022-08-02

Applicant: Bradford Ivey

Inventor： Bradford Ivey

IPC: H02K7/18 ,  H02P27/06 ,  H02J7/00 ,  H02P9/08 ,  H02K11/00 ,  H02K5/04

CPC classification number: H02K7/18 ,  H02J7/007 ,  H02K11/0094 ,  H02P9/08 ,  H02P27/06 ,  H02K5/04 ,  Y02T10/70

Abstract: An electrical generator is provided. The electrical generator can include a generator, an electric motor, and a battery. The generator has a rotatable shaft and stationary component and be operatively coupled via a drive belt to the motor, which provides torque to the rotatable shaft of the generator The battery is operatively coupled to the motor. The generator can be operatively coupled to a utility grid via a transformer/invertor that can import current from the utility grid to charge the battery when the utility grid is operating and export current from the generator to a grid connector when the utility grid is not operating.

公开(公告)号：US11643909B2

公开(公告)日：2023-05-09

申请号：US17201942

申请日：2021-03-15

Applicant: Schlumberger Technology Corporation

Inventor： Mustafa Kamil Guven ,  Torgeir Rusten ,  In Chul Jang ,  Yaoxin Qian

IPC: E21B41/00 ,  E21B4/20 ,  E21B44/00 ,  E21B7/06 ,  H02K7/18 ,  E21B21/12 ,  E21B4/02 ,  F03B13/02 ,  H02P9/04

CPC classification number: E21B41/0085 ,  E21B4/02 ,  E21B4/20 ,  E21B7/068 ,  E21B21/12 ,  E21B44/005 ,  H02K7/18 ,  H02K7/1823 ,  F03B13/02 ,  H02P9/04

Abstract: A downhole system includes a drill string having a drilling fluid flow channel and at least one turbine alternator deployed in the flow channel. The turbine alternator is configured to convert flowing drilling fluid to electrical power. A voltage bus is configured to receive electrical power from the turbine alternator and at least one electrical motor is configured to receive electrical power from the voltage bus. An electronic controller is configured to provide active control of the turbine alternator via processing a desired speed of the electrical motor to generate a desired torque current and feeding the desired torque current forward to the turbine alternator. The turbine alternator is responsive to the desired torque current such that it modifies the electrical power provided to the voltage bus in response to the desired torque.

公开(公告)号：US20180337584A1

公开(公告)日：2018-11-22

申请号：US15771977

申请日：2015-10-28

Applicant: João Gaspar MAINSEL

Inventor： João Gaspar MAINSEL

IPC: H02K53/00 ,  F03G3/00 ,  F03B7/00

CPC classification number: H02K7/18 ,  H02K53/00

Abstract: A method for generating electrical energy through the fall of a weight upon a hydraulic fluid (reference sign H) is characterised in that it employs the kinetic energy of a weight (11) which is accelerated by the force of gravity when falling inside a tube (12) which contains a hydraulic fluid which is expelled through a discharge pipe (14) to a gravity box (22) in which blades (21) are contained to rotate a shaft (20) which transfers mechanical energy to an elastic coupling (19) which absorbs shocks and transmits a stable rotation to the alternator (17) which generates electrical energy for the electrical grid and to recharge a battery (10) by cables (18) which also power the motor. The weight (11) is lifted by a motor (7) and a reducer 8 which uses a belt (6) to transmit the movement by means of the belt (6) to a wheel (5) on which a metallic disk (9) is mounted to lock the arm (4) and allow it to be lifted together with the cable (3) connected thereto, passing by a tower (2), and the circulation path of which is controlled by pulleys (1) which cause the weight (11) to be lifted until the arm (4) reaches the vertical position, when it is released and falls, accelerated by the force of gravity. The weight (11) falls freely inside the tube (12) and causes the hydraulic fluid to be expelled towards the blades (21) and then to fall to the bottom of the gravity box (22) which is located above the filling level in the tube (12), causing the fluid to be returned by the force of gravity through discharge pipes (15), at the same time as it is aspirated by the valve (13) under the pressure generated when the weight (11) rises to restart a new cycle.

公开(公告)号：US20180233975A1

公开(公告)日：2018-08-16

申请号：US15513613

申请日：2014-11-10

Applicant: Mitsubishi Electric Corporation

Inventor： Ryuichi SHIMOMURA ,  Tomoki SAGAYAMA

IPC: H02K1/30 ,  B60K6/40 ,  H02K1/27 ,  H02K7/075 ,  H02K11/21 ,  H02K15/03 ,  H02K51/00

CPC classification number: H02K1/30 ,  B60K6/28 ,  B60K6/40 ,  B60Y2200/92 ,  B60Y2400/608 ,  H02K1/274 ,  H02K7/006 ,  H02K7/075 ,  H02K7/18 ,  H02K11/21 ,  H02K15/03 ,  H02K51/00 ,  Y10S903/906

Abstract: The rotor of the rotary electric machine according to the present invention includes: a cylindrical rotor core; magnets that are respectively housed in a plurality of magnet housing apertures that are formed circumferentially so as to pass axially through an outer circumferential side of the rotor core; and a rotor boss that includes: a cylindrical rotor ring that holds the rotor core; an annular mounting portion that is linked to the crankshaft so as to be disposed coaxially at a first axial end inside the rotor ring; and a linking plate that links the rotor ring and the mounting portion, and the linking plate is formed so as to have a curved shape that is convex toward a second axial end of the rotor boss, and has a thickness that reduces continuously from a radially inner side toward a radially outer side.

公开(公告)号：US20180171986A1

公开(公告)日：2018-06-21

申请号：US15735779

申请日：2016-06-27

Applicant: SeaTwirl AB

Inventor： Daniel Ehrnberg

IPC: F03D80/50 ,  F03D3/00 ,  F03D13/25 ,  F03D9/25 ,  B63B35/44 ,  B63B9/00 ,  H02K7/18

CPC classification number: F03D80/50 ,  B63B9/00 ,  B63B35/003 ,  B63B35/44 ,  B63B2009/008 ,  B63B2035/446 ,  F03D3/005 ,  F03D9/25 ,  F03D13/25 ,  F05B2220/706 ,  F05B2230/6102 ,  F05B2230/80 ,  F05B2240/95 ,  H02K7/102 ,  H02K7/18 ,  H02K7/183 ,  Y02E10/727 ,  Y02E10/74 ,  Y02P70/523

Abstract: A floating VAWT comprising a wind turbine body having a lower body portion and an upper body portion; at least one blade attached to the upper body portion for converting wind energy to rotation of the wind turbine body; and an energy converter attached to the wind turbine body for converting the rotation of the wind turbine body to electrical energy. The energy converter comprises a first energy converter part, and a second energy converter part to be kept relatively stationary in relation to the first energy converter part. The energy converter is attached to the wind turbine body by means of a first releasable mechanical coupling between the first energy converter part and the lower body portion of the wind turbine body, and a second releasable mechanical coupling between the first energy converter part and the upper body portion of the wind turbine body.