中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

24 records (took 0.019 seconds)

    SYSTEM AND METHOD FOR PITCH FAULT DETECTION
    11.
    发明申请
    SYSTEM AND METHOD FOR PITCH FAULT DETECTION 审中-公开
    用于检测故障检测的系统和方法

    公开(公告)号：US20150337802A1

    公开(公告)日：2015-11-26

    申请号：US14712433

    申请日：2015-05-14

    Applicant: General Electric Company

    Inventor： Ming Su ,  Jeffrey Alan Melius ,  Pranav Agarwal ,  Mark Edward Cardinal

    IPC: F03D7/02

    CPC classification number: F03D7/0224 ,  F03D17/00 ,  Y02E10/723

    Abstract: The system includes at least one blade, a pitch command generator, a blade pitch system, a model store unit and a monitor unit. The pitch command generator is for generating at least one pitch command. The blade pitch system is for adjusting a pitch angle of the blade according to the pitch command and outputting an actual response representing an actual pitch condition of the blade in response to the pitch command. The model store unit is for receiving the pitch command and generating a desired response representing a desired pitch condition in response to the pitch command based on a nonlinear blade model. The monitor unit is for comparing a difference between the actual response and the desired response with a predetermined threshold and determining an operation status of the blade based at least in part on the difference. A method and a wind turbine are also provided.

    Abstract translation: 该系统包括至少一个叶片，俯仰指令发生器，叶片俯仰系统，模型存储单元和监视器单元。 音调指令发生器用于产生至少一个音调命令。 叶片桨距系统用于根据桨距指令调节叶片的俯仰角，并响应于俯仰指令输出表示叶片的实际俯仰条件的实际响应。 模型存储单元用于接收音调命令并响应于基于非线性叶片模型的音调命令产生表示期望音调条件的期望响应。 监视器单元用于将实际响应和期望响应之间的差异与预定阈值进行比较，并且至少部分地基于差异来确定刀片的操作状态。 还提供了一种方法和风力涡轮机。

    System and Method for Determining an Estimated Position of a Wind Turbine Rotor Shaft
    12.
    发明申请
    System and Method for Determining an Estimated Position of a Wind Turbine Rotor Shaft 审中-公开

    公开(公告)号：US20180230970A1

    公开(公告)日：2018-08-16

    申请号：US15434212

    申请日：2017-02-16

    Applicant: General Electric Company

    Inventor： Robert Peter Slack ,  Mark Edward Cardinal

    IPC: F03D17/00 ,  F03D1/06 ,  F03D13/20 ,  F03D80/80

    CPC classification number: F03D17/00 ,  F03D7/042 ,  F05B2240/60 ,  F05B2270/326 ,  F05B2270/807 ,  Y02E10/721

    Abstract: The present disclosure is directed to a method for determining an estimated rotor shaft position of a rotor shaft of a wind turbine. The method includes generating, with a rotor shaft position sensor, a measured rotor shaft position signal associated with a measured rotor shaft position of the rotor shaft. The method also includes generating, with a plurality of accelerometers positioned in an axisymmetric arrangement, a plurality of rotor hub acceleration signals associated with a plurality of rotor hub accelerations of a rotor hub coupled to the rotor shaft. The method further includes determining, with a controller, a phase adjustment based on one of the plurality of rotor hub acceleration signals or a predetermined correction value. Furthermore, the method includes adjusting, with the controller, the measured rotor shaft position by the phase adjustment to determine the estimated rotor shaft position of the rotor.

    System and method for adaptive rotor imbalance control
    14.
    发明授权
    System and method for adaptive rotor imbalance control 有权
    自适应转子不平衡控制系统和方法

    公开(公告)号：US09567978B2

    公开(公告)日：2017-02-14

    申请号：US14524229

    申请日：2014-10-27

    Applicant: General Electric Company

    Inventor： Monika Marwaha ,  Brandon Shane Gerber ,  Jignesh Govindlal Gandhi ,  Mark Edward Cardinal ,  Thomas Franklin Perley

    IPC: F03D7/04 ,  F03D7/02 ,  F03D11/00

    CPC classification number: F03D7/046 ,  F03D7/0204 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0296 ,  F03D17/00 ,  Y02E10/723

    Abstract: A control system for a wind turbine includes a detecting system configured to determine at least one of a rotor load, a wind shear, a wind speed, and a load imbalance due to wind shear. An adjusting system is configured to adjust a shaft moment set point correction value based on at least one of the rotor load, the wind shear, the wind speed, and the load imbalance. A compensating system is configured to compute a shaft moment correction command based on the shaft moment set point correction value output from the adjusting system. A pitch system is configured to adjust a pitch of at least one blade of the wind turbine based on the shaft moment set point correction command, or a yaw system is configured to adjust the yaw position of a rotor based on the shaft moment set point correction command.

    Abstract translation: 用于风力涡轮机的控制系统包括检测系统，该检测系统被配置为确定由风切变引起的转子负载，风切变，风速和负载不平衡中的至少一个。 调整系统被配置为基于转子负载，风切变，风速和负载不平衡中的至少一个来调节轴力矩设定点校正值。 补偿系统被配置为基于从调节系统输出的轴力矩设定点校正值来计算轴力矩校正命令。 俯仰系统被配置为基于轴力矩设定点校正命令来调节风力涡轮机的至少一个叶片的桨距，或者偏航系统被配置为基于轴转矩设定点校正来调整转子的偏航位置 命令。

    System and Method for Protecting Rotary Machines
    15.
    发明申请
    System and Method for Protecting Rotary Machines 有权
    保护旋转机器的系统和方法

    公开(公告)号：US20150355044A1

    公开(公告)日：2015-12-10

    申请号：US14298361

    申请日：2014-06-06

    Applicant: General Electric Company

    Inventor： Mark Edward Cardinal ,  Jignesh Govindlal Gandhi ,  Robert J. Dewey ,  Ryan Spencer Close ,  Thomas Ernst Dinjus ,  Bernardo Adrian Movischoff ,  David Charles Korim

    IPC: G01M1/22

    CPC classification number: G01M1/22 ,  F03D13/35 ,  G01H1/003

    Abstract: The present disclosure is directed to a system and method for protecting a rotary machine in a high noise environment. In one embodiment, the method includes a step of measuring a vibration signal during operation of the rotary machine. Another step includes modulating the vibration signal at a desired frequency to generate a modulated signal having a direct current (DC) value. The desired frequency varies as a function of an operational parameter of the rotary machine. The method also includes a step of filtering the modulated signal via one or more low-pass filters. Another step includes comparing an amplitude of the filtered signal to a threshold amplitude for one or more components of the rotary machine. The threshold amplitude is indicative of an imbalance within one or more components of the rotary machine. The rotary machine is then operated based on the comparison so as to protect the rotary machine from damage caused by the imbalance within the one or more components of the rotary machine.

    Abstract translation: 本公开涉及用于在高噪声环境中保护旋转机器的系统和方法。 在一个实施例中，该方法包括在旋转机器的操作期间测量振动信号的步骤。 另一步骤包括以期望的频率调制振动信号以产生具有直流（DC）值的调制信号。 期望的频率随着旋转机器的操作参数的变化而变化。 该方法还包括经由一个或多个低通滤波器对调制信号进行滤波的步骤。 另一步骤包括将滤波信号的幅度与旋转机器的一个或多个部件的阈值振幅进行比较。 阈值振幅表示旋转机器的一个或多个部件内的不平衡。 然后基于比较操作旋转机，以便保护旋转机器免受旋转机器的一个或多个部件内的不平衡的损害。

    System and method for improving speed control of a pitch drive system of a wind turbine
    16.
    发明授权
    System and method for improving speed control of a pitch drive system of a wind turbine 有权

    公开(公告)号：US10371122B2

    公开(公告)日：2019-08-06

    申请号：US15667727

    申请日：2017-08-03

    Applicant: General Electric Company

    Inventor： Jeffrey Alan Melius ,  Mark Edward Cardinal ,  Joseph Lawrence Chacon

    IPC: F03D7/04 ,  H02P7/298 ,  F03D7/02 ,  H02P7/06

    Abstract: The present subject matter is directed to a system and method for improving speed control of a pitch drive system of a wind turbine. In one embodiment, the pitch drive system includes a direct current (DC) motor having an armature and a series-field winding, a battery assembly having a positive terminal and a negative terminal, and a current-controlling device configured in series between the positive terminal of the battery assembly and the series-field winding. The battery assembly is configured to supply power to the pitch drive system and the current-controlling device is configured to supply current to the series-field winding so as to ensure a field flux does not equal zero. Thus, the current-controlling device has the effect of limiting the maximum speed of the DC motor.

    Method for operating a wind farm and wind farm
    19.
    发明授权
    Method for operating a wind farm and wind farm 有权

    公开(公告)号：US09822766B2

    公开(公告)日：2017-11-21

    申请号：US14170678

    申请日：2014-02-03

    Applicant: General Electric Company

    Inventor： Mark Edward Cardinal ,  Kuruvilla Pallathusseril Kuruvilla ,  Enno Ubben

    IPC: F03D9/00 ,  F03D7/02 ,  F03D7/04 ,  F03D7/00 ,  F03D9/25

    CPC classification number: F03D9/257 ,  F03D7/00 ,  F03D7/028 ,  F03D7/048 ,  Y02E10/723

    Abstract: A method for operating a wind farm is provided. The wind farm includes at least two groups of wind turbines, each of the at least two groups of wind turbines includes at least one wind turbine of the wind farm, each of the wind turbines of the wind farm belonging to one of the at least two groups of wind turbines. The method includes determining a power setpoint for the wind farm, determining a group curtailment setpoint for each of at least two groups of wind turbines, determining a power production value of each of the at least two groups of wind turbines, determining for each of the at least two groups of wind turbines a power reference value using the respective group curtailment setpoint and the respective power production value, determine for each of the at least two groups of wind turbines a group power setpoint which is proportional to the respective power reference values, and operating the at least two groups of wind turbines in accordance with the respective group power setpoint. Furthermore, a wind farm is provided.

Patent Agency Ranking