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    • 1. 发明申请
    • ENERGY-EFFICIENT WIRELESS COMMUNICATION SCHEME FOR WIND TURBINES
    • 用于风力涡轮机的能量效率无线通信方案
    • US20130022462A1
    • 2013-01-24
    • US13189467
    • 2011-07-22
    • Christoph LangMahito AndoRalf SchmidtLakshmi VenkatramanPeter Volkmer
    • Christoph LangMahito AndoRalf SchmidtLakshmi VenkatramanPeter Volkmer
    • F03D11/00G05B13/02
    • G01D21/00F03D7/047F05B2260/80F05B2270/17F05B2270/808Y02E10/723
    • A method of operating a wind turbine includes providing a wind turbine having a plurality of blades. A respective sensor is attached to each of the blades. First measurements of a structural characteristic of each of the blades are repeatedly taken by use of the sensors. A tolerance band is established for the measurements. Signals indicative of the first measurements are wirelessly transmitted only if the first measurements are outside of the tolerance band. The transmitted signals are received at a controller. An actuator signal is sent from the controller to at least one actuator associated with the blades. The sending is in response to the receiving of the transmitted signals. At least one of the blades is actuated dependent upon the actuator signal. The actuating is performed by the at least one actuator. Second measurements of the structural characteristic of each of the blades are repeatedly taken by use of the sensors after the actuating step. The wirelessly transmitting, receiving, sending and actuating steps are repeated for the second measurements.
    • 一种操作风力涡轮机的方法包括提供具有多个叶片的风力涡轮机。 相应的传感器附接到每个叶片。 通过使用传感器来重复地进行每个叶片的结构特征的第一测量。 建立了测量公差带。 仅当第一测量值超出公差带宽时,指示第一测量的信号才被无线传输。 所发送的信号在控制器处被接收。 致动器信号从控制器发送到与叶片相关联的至少一个致动器。 发送是响应于所发送的信号的接收。 至少一个叶片根据致动器信号被致动。 致动由至少一个致动器执行。 在致动步骤之后,通过使用传感器来重复地进行每个叶片的结构特征的第二测量。 对第二次测量重复无线发送,接收,发送和启动步骤。
    • 2. 发明授权
    • Energy-efficient wireless communication scheme for wind turbines
    • 节能型风力发电机无线通信方案
    • US08786118B2
    • 2014-07-22
    • US13189467
    • 2011-07-22
    • Christoph LangMahito AndoRalf SchmidtLakshmi VenkatramanPeter Volkmer
    • Christoph LangMahito AndoRalf SchmidtLakshmi VenkatramanPeter Volkmer
    • F03D9/00
    • G01D21/00F03D7/047F05B2260/80F05B2270/17F05B2270/808Y02E10/723
    • A method of operating a wind turbine includes providing a wind turbine having a plurality of blades. A respective sensor is attached to each of the blades. First measurements of a structural characteristic of each of the blades are repeatedly taken by use of the sensors. A tolerance band is established for the measurements. Signals indicative of the first measurements are wirelessly transmitted only if the first measurements are outside of the tolerance band. The transmitted signals are received at a controller. An actuator signal is sent from the controller to at least one actuator associated with the blades. The sending is in response to the receiving of the transmitted signals. At least one of the blades is actuated dependent upon the actuator signal. The actuating is performed by the at least one actuator. Second measurements of the structural characteristic of each of the blades are repeatedly taken by use of the sensors after the actuating step. The wirelessly transmitting, receiving, sending and actuating steps are repeated for the second measurements.
    • 一种操作风力涡轮机的方法包括提供具有多个叶片的风力涡轮机。 相应的传感器附接到每个叶片。 通过使用传感器来重复地进行每个叶片的结构特征的第一测量。 建立了测量公差带。 仅当第一测量值超出公差带宽时,指示第一测量的信号才被无线传输。 所发送的信号在控制器处被接收。 致动器信号从控制器发送到与叶片相关联的至少一个致动器。 发送是响应于所发送的信号的接收。 至少一个叶片根据致动器信号被致动。 致动由至少一个致动器执行。 在致动步骤之后,通过使用传感器来重复地进行每个叶片的结构特征的第二测量。 对第二次测量重复无线发送,接收,发送和启动步骤。
    • 3. 发明授权
    • Method for robust wireless wind turbine condition monitoring
    • 强大的无线风力发电机状态监测方法
    • US09249781B2
    • 2016-02-02
    • US13341291
    • 2011-12-30
    • Christoph LangPeter VolkmerMurat SenelVivek JainLakshmi VenkatramanHuang Lee
    • Christoph LangPeter VolkmerMurat SenelVivek JainLakshmi VenkatramanHuang Lee
    • F03D7/04
    • F03D7/047F03D7/048F05B2270/111F05B2270/326Y02E10/723
    • A wind turbine condition monitoring system and method are disclosed where the wind turbines include a tower, a gearbox coupled to the tower, and turbine blades coupled to the gearbox. The monitoring system includes blade sensors coupled to the blades, a hub node coupled to the gearbox and a controller. The controller is in communication with the hub node and blade sensors, and determines blade positions based on blade sensor readings. The blade sensors and hub node can include multi-axis accelerometers. The controller can wirelessly communicate with the blade sensors directly or through the hub node. Using position information, shadowing areas with obstructed communication can be avoided, node separation can be accounted for to reduce power requirements and/or interference from multiple transmitters can be avoided during node communications.
    • 公开了一种风力涡轮机状况监测系统和方法,其中风力涡轮机包括塔架,联接到塔架的齿轮箱和联接到齿轮箱的涡轮机叶片。 监测系统包括耦合到叶片的叶片传感器,耦合到齿轮箱的轮毂节点和控制器。 控制器与集线器节点和刀片传感器通信,并根据刀片传感器读数确定刀片位置。 叶片传感器和轮毂节点可以包括多轴加速度计。 控制器可以直接或通过集线器节点与刀片传感器无线通信。 使用位置信息,可以避免阻碍通信的阴影区域,可以考虑节点分离以减少功率需求,并且可以在节点通信期间避免多个发射机的干扰。
    • 6. 发明申请
    • METHOD FOR MONITORING THE LOAD ON ROTOR BLADES OF WIND ENERGY INSTALLATIONS
    • 用于监测风力发电装置转子叶片负载的方法
    • US20090319199A1
    • 2009-12-24
    • US12299802
    • 2007-05-15
    • Peter Volkmer
    • Peter Volkmer
    • G01L5/00G06F19/00
    • G01M5/0066F03D7/0224F03D7/0264F03D17/00F05B2270/331F05B2270/334F05B2270/807G01M5/0033Y02E10/723
    • In a method for monitoring the load on rotor blades of wind energy installations by measuring acceleration on at least one rotor blade of a wind energy installation and determining load on the rotor blade from the picked-up acceleration signals, dynamic, even uncritical load states can be detected, in differentiated fashion, and combined in a suitable form for evaluation in order to influence, if possible prior to the onset of damage to the rotor blade, the mode of operation of the wind energy installation, in particular the design of the pitch control or angle setting of stall-regulated rotor blades, on the basis both of all of the rotor blades together and of a single rotor blade. Frequency of occurrence of the load values over a certain period of time is determined from amplitudes of the acceleration signal or amplitudes of selected natural oscillations of the frequency spectra are obtained by Fourier transformation.
    • 在通过测量风能设备的至少一个转子叶片上的加速度并根据拾取的加速度信号确定转子叶片上的负载来监测风力设备的转子叶片上的负载的方法中,动态甚至非临界负载状态可以 以不同的方式被检测,并且以合适的形式组合以进行评估,以便如果可能的话,在转子叶片损坏开始之前影响风能装置的操作模式,特别是音调设计 在所有转子叶片和单个转子叶片的基础上,对失速调节的转子叶片进行控制或角度设定。 通过加速度信号的幅度确定一段时间内的负载值的发生频率,或者通过傅里叶变换获得频谱的选定的自然振荡的幅度。
    • 7. 发明申请
    • Method and Device for Monitoring the State of Rotor Blades on Wind Power Installations
    • 用于监测风力发电机组转子叶片状态的方法和装置
    • US20080206052A1
    • 2008-08-28
    • US11572835
    • 2005-07-06
    • Peter Volkmer
    • Peter Volkmer
    • G01M19/00
    • G01H1/006F03D17/00F03D80/40F05B2270/333F05B2270/81Y02E10/721
    • The invention relates to a method and a device for monitoring the state of rotor blades on wind power installations. According to the invention, structure-borne noise is measured by means of at least one displacement sensor arranged on the rotor blade, the output signals of said sensors determine a frequency spectrum in an evaluation unit by means of suitable methods, the frequency spectrum is compared to reference spectra corresponding to defined states of damage and other particular states and stored in the evaluation unit, and the state of the rotor blade is determined therefrom. The aim of the invention is to provide a method and a device which enable existing local inner and outer damage, and other particular damage-causing states of the rotor blades, to be rapidly identified and evaluated, in order to take into account the effect thereof on the operation of the installation in an automatic manner. To this end, structure-borne noise is measured from a sequence of individual measurements carried out directly one after the other, the beginning of each of said individual measurements being triggered according to a uniform rotational angle of the rotor blade in relation to the rotational axis of the rotor, and all of the determined frequency spectra of each individual measurements are accumulated before being compared with the reference spectra.
    • 本发明涉及用于监测风力发电设备上的转子叶片的状态的方法和装置。 根据本发明,通过布置在转子叶片上的至少一个位移传感器测量结构噪声,所述传感器的输出信号通过合适的方法确定评估单元中的频谱,比较频谱 以参考与规定的损伤状态和其他特定状态对应的光谱并存储在评估单元中,并且由此确定转子叶片的状态。 本发明的目的是提供一种方法和装置,其能够快速识别和评估现有局部内外损伤以及转子叶片的其它特定损坏状态,以便考虑其影响 以自动方式进行安装操作。 为此,结构传播的噪声是从一个接一个地直接执行的单独测量的序列测量的,每个所述单个测量的开始根据转子叶片相对于旋转轴线的均匀旋转角度被触发 并且在与参考光谱进行比较之前累积每个单独测量的所有确定的频谱。
    • 9. 发明授权
    • Method for monitoring the load on rotor blades of wind energy installations
    • 监测风力发电设备转子叶片负荷的方法
    • US08170810B2
    • 2012-05-01
    • US12299802
    • 2007-05-15
    • Peter Volkmer
    • Peter Volkmer
    • G06F19/00
    • G01M5/0066F03D7/0224F03D7/0264F03D17/00F05B2270/331F05B2270/334F05B2270/807G01M5/0033Y02E10/723
    • In a method for monitoring the load on rotor blades of wind energy installations by measuring acceleration on at least one rotor blade of a wind energy installation and determining load on the rotor blade from the picked-up acceleration signals, dynamic, even uncritical load states can be detected, in differentiated fashion, and combined in a suitable form for evaluation in order to influence, if possible prior to the onset of damage to the rotor blade, the mode of operation of the wind energy installation, in particular the design of the pitch control or angle setting of stall-regulated rotor blades, on the basis both of all of the rotor blades together and of a single rotor blade. Frequency of occurrence of the load values over a certain period of time is determined from amplitudes of the acceleration signal or amplitudes of selected natural oscillations of the frequency spectra are obtained by Fourier transformation.
    • 在通过测量风能设备的至少一个转子叶片上的加速度并根据拾取的加速度信号确定转子叶片上的负载来监测风力设备的转子叶片上的负载的方法中,动态甚至非临界负载状态可以 以不同的方式被检测,并且以合适的形式组合以进行评估,以便如果可能的话,在转子叶片损坏开始之前影响风能装置的操作模式,特别是音调设计 在所有转子叶片和单个转子叶片的基础上,对失速调节的转子叶片进行控制或角度设定。 通过加速度信号的幅度确定一段时间内的负载值的发生频率,或者通过傅里叶变换获得频谱的选定的自然振荡的幅度。
    • 10. 发明授权
    • Method and device for monitoring the state of rotor blades on wind power installations
    • 用于监测风力发电设备上转子叶片状态的方法和装置
    • US07883319B2
    • 2011-02-08
    • US11572835
    • 2005-07-06
    • Peter Volkmer
    • Peter Volkmer
    • F03D11/00F03D7/00F03D1/06G01M19/00
    • G01H1/006F03D17/00F03D80/40F05B2270/333F05B2270/81Y02E10/721
    • The invention relates to a method and a device for monitoring the state of rotor blades on wind power installations. According to the invention, structure-borne noise is measured by means of at least one displacement sensor arranged on the rotor blade, the output signals of said sensors determine a frequency spectrum in an evaluation unit by means of suitable methods, the frequency spectrum is compared to reference spectra corresponding to defined states of damage and other particular states and stored in the evaluation unit, and the state of the rotor blade is determined therefrom. The aim of the invention is to provide a method and a device which enable existing local inner and outer damage, and other particular damage-causing states of the rotor blades, to be rapidly identified and evaluated, in order to take into account the effect thereof on the operation of the installation in an automatic manner. To this end, structure-borne noise is measured from a sequence of individual measurements carried out directly one after the other, the beginning of each of said individual measurements being triggered according to a uniform rotational angle of the rotor blade in relation to the rotational axis of the rotor, and all of the determined frequency spectra of each individual measurements are accumulated before being compared with the reference spectra.
    • 本发明涉及用于监测风力发电设备上的转子叶片的状态的方法和装置。 根据本发明,通过布置在转子叶片上的至少一个位移传感器测量结构噪声,所述传感器的输出信号通过合适的方法确定评估单元中的频谱,比较频谱 以参考与规定的损伤状态和其他特定状态对应的光谱并存储在评估单元中,并且由此确定转子叶片的状态。 本发明的目的是提供一种方法和装置,其能够快速识别和评估现有局部内外损伤以及转子叶片的其它特定损坏状态,以便考虑其影响 以自动方式进行安装操作。 为此,结构传播的噪声是从一个接一个地直接执行的单独测量的序列测量的,每个所述单个测量的开始根据转子叶片相对于旋转轴线的均匀旋转角度被触发 并且在与参考光谱进行比较之前累积每个单独测量的所有确定的频谱。