ROTARY STEERABLE DRILLING SYSTEM WITH ACTIVE STABILIZER

    公开(公告)号:US20200024913A1

    公开(公告)日:2020-01-23

    申请号:US16476174

    申请日:2018-01-05

    Abstract: A drilling system includes a drill string for connecting with a drill bit for drilling a borehole, a fixed stabilizer fixed on the drill string, and an active stabilizer including a body and actuators connecting the body and the drill string. The actuators are capable of driving the drill string away from a center of the borehole with a displacement. The body has an outer surface for contacting a wall of the borehole, an inner surface facing the drill string, and at least one guiding portion projecting from the inner surface and each defining at least one groove. The drill string includes at least one sliding portion slidable within the at least one groove respectively to constrain movement between the drill string and the active stabilizer along an axial direction of the drill string and guide movement between the drill string and the active stabilizer perpendicular to the axial direction.

    CALIBRATION APPARATUS, CALIBRATION METHOD, AND MEASURING SYSTEM

    公开(公告)号:US20180095144A1

    公开(公告)日:2018-04-05

    申请号:US15708455

    申请日:2017-09-19

    Abstract: A calibration apparatus is configured to calibrate a magnetostrictive sensor. The magnetostrictive sensor is configured to measure an object and comprises a sensing element positioned adjacent to the object. The calibration apparatus comprises an estimation device and a calibrator. The estimation device is configured to estimate at least one of a gap between the sensing element and the object and a temperature of the object to obtain at least one of an estimated gap and an estimated temperature, based on geometric information, an excitation signal and an output signal of the magnetostrictive sensor, and geometric information of the object. The calibrator is configured to reduce an effect on the output signal of the magnetostrictive sensor imposed by variations in the at least one of the gap and the temperature, based on the at least one of the estimated gap and the estimated temperature, to obtain a calibrated output signal.

    CONTROL SYSTEM AND METHOD FOR MITIGATING ROTOR IMBALANCE ON A WIND TURBINE
    3.
    发明申请
    CONTROL SYSTEM AND METHOD FOR MITIGATING ROTOR IMBALANCE ON A WIND TURBINE 有权
    用于减轻风轮转子不平衡的控制系统和方法

    公开(公告)号:US20150086362A1

    公开(公告)日:2015-03-26

    申请号:US14477950

    申请日:2014-09-05

    Abstract: A wind turbine includes a rotor comprising multiple blades mounted on a hub, MIMUs mounted on each blade for sensing parameter signals thereof, and a control system. The control system includes a wind speed calculation unit, a wind shear calculation unit, a pitch angle compensation command calculation unit, and a pitch control unit. The wind speed calculation unit is used for calculating wind speeds at the blades based at least on the sensed parameter signals. The wind shear calculation unit is used for calculating a characteristic shear exponent based at least on the calculated wind speeds. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based at least on the calculated characteristic shear exponent. The pitch control unit is used for adjusting the pitch angles of the blades based on the calculated pitch angle compensation commands.

    Abstract translation: 风力涡轮机包括转子,其包括安装在轮毂上的多个叶片,安装在每个叶片上的MIMU用于感测其参数信号,以及控制系统。 控制系统包括风速计算单元,风切变计算单元,俯仰角补偿指令计算单元和俯仰控制单元。 风速计算单元用于至少基于感测的参数信号来计算叶片上的风速。 风切变计算单元用于至少基于所计算的风速来计算特征剪切指数。 俯仰角补偿指令计算单元至少基于所计算的特征剪切指数用于计算叶片的俯仰角补偿命令。 桨距控制单元用于根据计算出的俯仰角补偿命令来调节叶片的桨距角。

    ROTARY STEERABLE DRILLING SYSTEM AND METHOD WITH IMBALANCED FORCE CONTROL

    公开(公告)号:US20190352969A1

    公开(公告)日:2019-11-21

    申请号:US16476164

    申请日:2018-01-05

    Abstract: A drilling system includes a rotatable string for connecting with a bit for drilling a borehole, and an active stabilizer which includes a body having an outer surface for contacting a wall of the borehole, and a plurality of actuators connecting the body and the string and capable of driving the string to deviate away from a center of the borehole with a displacement to change a drilling direction. The drilling system further includes a module for measuring direction parameters including at least one of a declination angle and an azimuth angle of the borehole, a module for measuring imbalance parameters including at least one of a lateral force, a bending moment and a torque near the drill dit, and a controller including a calculator for calculating an adjustment needed for the displacement, based on the measured parameters and expected values of these parameters.

    POWER GENERATION SYSTEM
    5.
    发明申请
    POWER GENERATION SYSTEM 审中-公开
    发电系统

    公开(公告)号:US20160352102A1

    公开(公告)日:2016-12-01

    申请号:US15161641

    申请日:2016-05-23

    Inventor: Tong ZHAO Rong LI Xu FU

    Abstract: A power generation system comprising a plurality of power generation units; a plurality of energy storage units; a plurality of switch units for connecting or disconnecting the power generation units and the energy storage units; and a controller for controlling the switch units to disconnect one or more idle power generation units from their corresponding energy storage units when the idle power generation units stop operating and to connect the disconnected energy storage unit to one operating power generation unit of the plurality of power generation units based on states-of-charge of the energy storage units. The power generation system may make best use of the energy storage units.

    Abstract translation: 一种发电系统,包括多个发电单元; 多个能量存储单元; 用于连接或断开发电单元和能量存储单元的多个开关单元; 以及控制器,用于当所述空闲发电单元停止运行时,控制所述开关单元将一个或多个空闲发电单元与其相应的能量存储单元断开连接,并且将断开的能量存储单元连接到所述多个功率的一个工作发电单元 基于能量存储单元的充电状态的发电机组。 发电系统可以充分利用储能装置。

    POWER GENERATION SYSTEM AND METHOD WITH ENERGY MANAGEMENT
    6.
    发明申请
    POWER GENERATION SYSTEM AND METHOD WITH ENERGY MANAGEMENT 审中-公开
    发电系统和能源管理方法

    公开(公告)号:US20160308361A1

    公开(公告)日:2016-10-20

    申请号:US15094162

    申请日:2016-04-08

    Abstract: A power generation system is provided. The system includes a bus, at least two converters, an energy-type energy storage unit (ES), a power-type energy storage unit (PS) and a controller. The ES and the PS are coupled in parallel to the bus through corresponding converters of the at least two converters. The controller is configured to control the ES and the PS through the corresponding converters in at least two conditions during a charging mode and a discharging mode: when a power for the ES and PS is below a power threshold, control the power to flow between the ES and the bus; and when the power is above the power threshold, control a part of the power to flow between the ES and the bus and another part of the power to flow between the PS and the bus. And a method for generating power is also provided.

    Abstract translation: 提供发电系统。 该系统包括总线,至少两个转换器,能量型能量存储单元(ES),功率型能量存储单元(PS)和控制器。 ES和PS通过至少两个转换器的相应转换器与总线并联耦合。 控制器被配置为在充电模式和放电模式期间在至少两个条件下通过相应的转换器来控制ES和PS:当ES和PS的功率低于功率阈值时,控制功率在 ES和公共汽车; 并且当功率高于功率阈值时,控制一部分功率在ES和总线之间流动,另一部分功率在PS和总线之间流动。 还提供了发电的方法。

    WIND TURBINE AND BLADE ALIGNMENT METHOD THEREOF
    7.
    发明申请
    WIND TURBINE AND BLADE ALIGNMENT METHOD THEREOF 审中-公开
    风力涡轮机和叶片对准方法

    公开(公告)号:US20150330364A1

    公开(公告)日:2015-11-19

    申请号:US14706088

    申请日:2015-05-07

    Abstract: The present subject matter is directed to a wind turbine blade alignment method. A sensor provided on the blade at a blade station with a known twist angle is used to measure an installation angle of the blade station. The installation angle is adjusted if the installation angle measured by the sensor is not equal to the known twist angle. A wind turbine with such a sensor for measuring an installation angle used for blade alignment is also provided.

    Abstract translation: 本主题涉及风力涡轮机叶片对准方法。 使用设置在具有已知扭转角的刀片站的刀片上的传感器来测量刀片站的安装角度。 如果由传感器测量的安装角度不等于已知的扭转角度,则调整安装角度。 还提供了具有用于测量用于叶片对准的安装角度的这种传感器的风力涡轮机。

    WIND TURBINE AND METHOD FOR EVALUATING HEALTH STATE OF BLADE THEREOF
    8.
    发明申请
    WIND TURBINE AND METHOD FOR EVALUATING HEALTH STATE OF BLADE THEREOF 审中-公开
    风力涡轮机及其叶片健康状况评估方法

    公开(公告)号:US20150134272A1

    公开(公告)日:2015-05-14

    申请号:US14528101

    申请日:2014-10-30

    Inventor: Xu FU Zhilin WU Hai QIU

    Abstract: A wind turbine including a plurality of blades, a micro inertial measurement unit installed on each blade and configured to sense a plurality of detection parameter signals at corresponding installation positions, and a monitoring system configured to monitor an operating state of the blades. The monitoring system includes a signal processing unit configured to obtain a processing parameter signal through calculation based on the detection parameter signals, a signal analyzing unit configured to analyze each analysis parameter signal, selected from the plurality of detection parameter signals and the processing parameter signal, to obtain a fault estimation signal, used to estimate whether a corresponding blade works in a fault state, and a fault evaluating unit configured to evaluate, based on a plurality of fault estimation signals, whether a corresponding blade fails or a probability that the corresponding blade fails.

    Abstract translation: 一种包括多个叶片的风力涡轮机,安装在每个叶片上并构造成感测相应安装位置处的多个检测参数信号的微惯性测量单元以及被配置为监视叶片的操作状态的监测系统。 监视系统包括:信号处理单元,被配置为通过基于检测参数信号的计算获得处理参数信号;信号分析单元,被配置为分析从多个检测参数信号和处理参数信号中选择的每个分析参数信号, 以获得用于估计相应的刀片是否工作在故障状态的故障估计信号,以及故障评估单元,被配置为基于多个故障估计信号来评估相应的刀片是否失效,或者相应的刀片 失败了

    Wind Turbine and Method for Controlling Wind Turbine

    公开(公告)号:US20210285418A1

    公开(公告)日:2021-09-16

    申请号:US16334622

    申请日:2016-09-19

    Abstract: A wind turbine is provided. The wind turbine includes a mechanical system, an electrical system and a controller. The controller is for determining an electrical capability limit of the electrical system according at least in part to one or more operating conditions of the wind turbine and one or more environment conditions of a site of the wind turbine, comparing the electrical capability limit of the electrical system and a mechanical capability limit of the mechanical system, and controlling the electrical system to operate at the smaller one of the electrical capability limit and the mechanical capability limit. A method for controlling a wind turbine comprising a mechanical system and an electrical system is also provided.

    AUTO-ADJUSTABLE DIRECTIONAL DRILLING APPARATUS AND METHOD

    公开(公告)号:US20190338596A1

    公开(公告)日:2019-11-07

    申请号:US16477643

    申请日:2018-01-12

    Abstract: An auto-adjustable directional drilling apparatus comprises: a drive-shaft housing; a drill collar coupled to the drive-shaft housing; a drive shaft passing through the drive-shaft housing and the drill collar; an active stabilizer fixed to the drive-shaft housing and movably coupled to the drill collar; a sliding assembly comprising a base support fixed to the drill collar and a sliding base coupled to the drive-shaft housing, wherein the base support defines a slide way and the sliding base is slidably disposed in the slide way; and an actuating module coupled to the sliding base to drive the sliding base to slide along the slide way. An auto-adjustable directional drilling method is also disclosed.

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