Method and system for controlling switching frequency of a doubly-fed induction generator (DFIG)
    33.
    发明授权
    Method and system for controlling switching frequency of a doubly-fed induction generator (DFIG) 有权
    用于控制双馈感应发电机(DFIG)的开关频率的方法和系统

    公开(公告)号:US09537437B2

    公开(公告)日:2017-01-03

    申请号:US13783449

    申请日:2013-03-04

    CPC classification number: H02P9/007 H02J3/386 Y02E10/763

    Abstract: The present subject matter is directed to systems and methods for controlling variable speed generators, particularly converters associated with doubly-fed induction generators (DFIG) to permit use of harmonic attenuating filters that are generally smaller and less costly than previous similar filters. The subject matter provides for controlling line-side and rotor-side converters in such a manner that the frequencies generated by the converters are interleaved in a manner that the filters see a higher switching frequency and thus may be designed based on those higher frequencies, thereby requiring smaller and less expensive components.

    Abstract translation: 本主题涉及用于控制变速发电机的系统和方法,特别是与双馈感应发电机(DFIG)相关联的转换器,以允许使用通常比先前的类似滤波器更小且更便宜的谐波衰减滤波器。 主题提供了以这样的方式控制线路侧转子和转子侧转换器,使得由转换器产生的频率以滤波器看到更高的开关频率并因此可以基于那些较高频率被设计的方式进行交织,由此 需要更小和更便宜的组件。

    Secure pairing of end user devices with instruments
    34.
    发明授权
    Secure pairing of end user devices with instruments 有权
    最终用户设备与仪器的安全配对

    公开(公告)号:US09532225B2

    公开(公告)日:2016-12-27

    申请号:US14302967

    申请日:2014-06-12

    CPC classification number: H04W12/08 G06F21/445 G06F2221/2141 H04L63/104

    Abstract: A role-based access control method and/or system permits end users to securely pair their mobile devices via a pairing apparatus with one or more instruments to, for example, remotely monitor operations of the instruments. In an embodiment, the process includes a pairing apparatus receiving a pairing request from an instrument including a unique access code, and receiving a pairing request from an end user mobile device that includes an end user mobile device identifier and an access code. If the unique access code matches the end user's access code, then the end user mobile device identifier is added to a security group and a successful pairing message is transmitted to at least one of the instrument and the end user mobile device.

    Abstract translation: 基于角色的访问控制方法和/或系统允许终端用户通过配对设备与一个或多个仪器将他们的移动设备安全地配对,以便例如远程监视仪器的操作。 在一个实施例中,该过程包括配对设备,其从包括唯一访问代码的仪器接收配对请求,以及从包括最终用户移动设备标识符和访问代码的最终用户移动设备接收配对请求。 如果独特的访问代码与最终用户的访问代码相匹配,则将最终用户移动设备标识符添加到安全组,并将成功的配对消息发送到仪器和最终用户移动设备中的至少一个。

    LIMIT FOR DERATING SCHEME USED IN WIND TURBINE CONTROL
    35.
    发明申请
    LIMIT FOR DERATING SCHEME USED IN WIND TURBINE CONTROL 审中-公开
    限制在风力涡轮机控制中使用的方案

    公开(公告)号:US20160341179A1

    公开(公告)日:2016-11-24

    申请号:US14717132

    申请日:2015-05-20

    Abstract: Systems and methods for controlling a wind turbine are provided. An operating limit for a component of the wind turbine can be determined based on various environmental conditions (e.g. temperature, altitude, air density, wind speed, etc.) using a de-rating scheme. The operating limit determined using the de-rating scheme can be limited based on a rated operational limit for the at least one component as specified, for instance, by the manufacturer of the component. The wind turbine can be controlled based on the operating limit. For instance, an operating condition of the wind turbine can be controlled so as that operation of the wind turbine does not cause an operational parameter (e.g. an electrical current) to exceed the operating limit determined for the component of the wind turbine.

    Abstract translation: 提供了用于控制风力涡轮机的系统和方法。 可以基于各种环境条件(例如,温度,高度,空气密度,风速等)使用降额计划来确定风力涡轮机的部件的操作限制。 使用降额计划确定的操作限制可以基于例如由组件的制造商指定的至少一个部件的额定操作限制来限制。 风力涡轮机可以根据操作限制进行控制。 例如,可以控制风力涡轮机的操作条件,使得风力涡轮机的操作不会使操作参数(例如电流)超过为风力涡轮机的部件确定的操作限制。

    System and method to detect an event associated with a person relative to a bed
    36.
    发明授权
    System and method to detect an event associated with a person relative to a bed 有权
    用于检测与床相关联的事件的系统和方法

    公开(公告)号:US09495569B2

    公开(公告)日:2016-11-15

    申请号:US14135870

    申请日:2013-12-20

    Abstract: A system and method to detect an event associated with a first object relative to a second object and a support is provided. The system can include an antenna at a support to receive the first object, a tag reader in communication with the antenna and a tag located on the second object. In response to detecting a change in impedance of the antenna associated with the presence of the first object, the tag reader communicates a presence signal. In response to detecting the tag within a threshold proximity of the tag reader, the tag reader generates a tag signal. A remoter server is operable to detect an association of the first and second objects based on a comparison a time associated with each of the tag signal and the presence signal, and in response then creates an output indicative of a detected event based on the association for illustration.

    Abstract translation: 提供了一种用于检测与第一对象相关联的事件相对于第二对象和支持的系统和方法。 该系统可以包括在支撑件处的天线以接收第一对象,与天线通信的标签读取器和位于第二对象上的标签。 响应于检测到与第一对象的存在相关联的天线的阻抗的变化,标签读取器传达存在信号。 响应于在标签读取器的阈值接近度内检测到标签,标签读取器产生标签信号。 远程服务器可操作以基于与标签信号和存在信号中的每一个相关联的时间的比较来检测第一和第二对象的关联,并且响应于此响应于基于该关联来创建指示检测到的事件的输出 插图。

    SYSTEM AND METHOD FOR CONTROLLING A POWER GENERATION SYSTEM CONNECTED TO A WEAK GRID
    37.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING A POWER GENERATION SYSTEM CONNECTED TO A WEAK GRID 有权
    用于控制连接到弱网格的发电系统的系统和方法

    公开(公告)号:US20150349688A1

    公开(公告)日:2015-12-03

    申请号:US14663490

    申请日:2015-03-20

    CPC classification number: H02P9/007 F03D9/255 H02P9/00 H02P23/26 Y02E10/725

    Abstract: A method for controlling a power generation system connected to a weak grid may generally include operating a power converter of the system so as to produce current at or above a power factor threshold associated with a power factor operating requirement for the system, detecting that a generator speed of the system has increased over a period of time, detecting that a local reference voltage for the system has decreased within the same period of time over which the generator speed has increased and adjusting the operation of the power converter to produce current at a reduced power factor below the power factor threshold so as to increase a real power output of the system.

    Abstract translation: 用于控制连接到弱电网的发电系统的方法通常可以包括操作系统的功率转换器,以产生等于或高于与系统的功率因数运行要求相关联的功率因数阈值的电流,检测发电机 系统的速度在一段时间内增加,检测到系统的局部参考电压在发电机速度增加的相同时间内已经减少,并且调节功率转换器的工作以产生电流减少 功率因数低于功率因数阈值,以增加系统的实际功率输出。

    AUTOMATED METHOD AND APPARATUS FOR TESTING A POWER CONVERTER
    38.
    发明申请
    AUTOMATED METHOD AND APPARATUS FOR TESTING A POWER CONVERTER 有权
    用于测试电源转换器的自动化方法和装置

    公开(公告)号:US20150309119A1

    公开(公告)日:2015-10-29

    申请号:US14260586

    申请日:2014-04-24

    Abstract: A method and apparatus for testing operability of a power converter with an existing power conversion assembly of a renewable energy system is disclosed. The method includes transferring a first pulse of energy from an existing power conversion assembly to a power filter of the power converter through first cells within a bridge circuit of the power converter. Another step includes determining a first current-voltage feedback associated with the first pulse. A next step includes transferring a second pulse of energy from the power filter to the existing power conversion assembly through second cells within the bridge circuit such that a portion of the first pulse moves back to the existing power conversion assembly. Another step includes determining a second current-voltage feedback associated with the second pulse. The first and second current-voltage feedbacks are compared with nominal tolerances of the power converter to ensure the power converter is operating properly.

    Abstract translation: 公开了一种用于利用可再生能源系统的现有功率转换组件测试功率转换器的可操作性的方法和装置。 该方法包括通过功率转换器的桥式电路内的第一单元将来自现有功率转换组件的第一能量脉冲传送到功率转换器的功率滤波器。 另一步骤包括确定与第一脉冲相关联的第一电流 - 电压反馈。 下一步骤包括通过桥接电路内的第二单元将来自功率滤波器的第二能量脉冲转移到现有的功率转换组件,使得第一脉冲的一部分移回到现有的功率转换组件。 另一步骤包括确定与第二脉冲相关联的第二电流 - 电压反馈。 将第一和第二电流 - 电压反馈与功率转换器的标称公差进行比较,以确保功率转换器正常工作。

    SYSTEM AND METHOD OF CONTROLLING AN ELECTRONIC COMPONENT OF A WIND TURBINE USING CONTINGENCY COMMUNICATIONS
    39.
    发明申请
    SYSTEM AND METHOD OF CONTROLLING AN ELECTRONIC COMPONENT OF A WIND TURBINE USING CONTINGENCY COMMUNICATIONS 有权
    使用协调通信控制风力涡轮机的电子元件的系统和方法

    公开(公告)号:US20150267684A1

    公开(公告)日:2015-09-24

    申请号:US14221566

    申请日:2014-03-21

    CPC classification number: F03D7/00 F03D9/255 G08C19/00

    Abstract: The present subject matter is directed to a system and method for controlling an electrical component, e.g. a power bridge, of a wind turbine using contingency communications. In one embodiment, the method includes receiving, by the electrical component, a standard set of commands for a first time frame. A next step includes receiving, by the electrical component, one or more contingency sets of commands for time frames beyond the first time frame. The method also includes determining if the standard set of commands is received within a start window of the first time frame. A further step includes implementing, by the electrical component, the standard set of commands during the first time frame if the standard set of commands is received within the start window. The method also includes implementing, by the electrical component, one of the contingency sets of commands received during a previous time frame if the standard set of commands is not received within the start window.

    Abstract translation: 本主题涉及用于控制电气部件的系统和方法,例如, 使用应急通信的风力发电机的电力桥。 在一个实施例中,该方法包括由电气部件接收用于第一时间帧的标准的命令集合。 下一步骤包括通过电气部件接收超过第一时间帧的时间帧的一个或多个应急命令集合。 该方法还包括确定在第一时间帧的起始窗口内是否接收到标准的命令集。 进一步的步骤包括如果在起始窗口内接收到标准的命令集,则由电子部件实现在第一时间帧期间的标准的命令集合。 该方法还包括如果在起始窗口内没有接收到标准的命令集,则由电子部件实现在前一时间帧期间接收到的一组命令集。

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