Anti-islanding for grid-tie inverter using covariance estimation and logic decision maker
    11.
    发明授权
    Anti-islanding for grid-tie inverter using covariance estimation and logic decision maker 有权
    使用协方差估计和逻辑决策者的并联逆变器的反孤岛

    公开(公告)号:US08258759B2

    公开(公告)日:2012-09-04

    申请号:US12699652

    申请日:2010-02-03

    Abstract: An anti-islanding implementation that introduces a small, continuously varying phase shift pattern in the output current of an inverter. In grid-connected mode, this phase shift pattern has no impact on the frequency of the inverter's output voltage. However, when islanded, the phase shift will cause the voltage frequency to deviate from nominal. Changes in the output current phase thus correlate well with the voltage frequency, so a covariance index is used to detect an islanding configuration. When this index exceeds a threshold, a larger phase shift pattern is introduced in the output current, large enough to cause the voltage frequency to fall outside the inverter's trip protection window without compromising the inverter's power quality yet ensuring reliable tripping of the inverter.

    Abstract translation: 一种反孤岛实现,在逆变器的输出电流中引入小的,连续变化的相移模式。 在并网模式下,该相移模式对变频器输出电压的频率没有影响。 然而,当孤岛时,相移将导致电压频率偏离标称值。 因此,输出电流相位的变化与电压频率相关,因此协方差指数用于检测孤岛状态。 当该指标超过阈值时,在输出电流中引入较大的相移模式,足够大以使电压频率落在变频器跳闸保护窗外,而不会影响变频器的电源质量,同时确保变频器的可靠跳闸。

    PHOTOVOLTAIC INVERTER WITH CONTROL FOR PERFORMING LOW VOLTAGE RIDE THROUGH
    12.
    发明申请
    PHOTOVOLTAIC INVERTER WITH CONTROL FOR PERFORMING LOW VOLTAGE RIDE THROUGH 失效
    具有控制功能的光伏逆变器,用于执行低电压

    公开(公告)号:US20120087048A1

    公开(公告)日:2012-04-12

    申请号:US12902730

    申请日:2010-10-12

    Applicant: Jun Yin Renjie Xu

    Inventor: Jun Yin Renjie Xu

    CPC classification number: H02J3/383 H02H9/041 Y02E10/563 Y10T307/625

    Abstract: A photovoltaic inverter for coupling a direct current photovoltaic source to an alternating current energy grid and performing a low voltage ride through. The inverter includes a power bridge to convert direct current voltage to alternating current voltage. A switching crowbar is coupled to the photovoltaic energy source and the power bridge. The crowbar has a switching device having a closed position causing the switching crowbar to dissipate energy from the photovoltaic energy source and an open position to allow direct output from the photovoltaic source to the power bridge. A voltage sensor detects a low voltage condition on the grid. A controller is coupled to the voltage sensor and controls the switching crowbar when a low voltage condition is detected. The switching device is placed in the closed position when the voltage from the photovoltaic energy source is higher than a predetermined threshold voltage and the switching device being placed in the open position when the voltage of the photovoltaic source reaches the voltage when the low voltage condition is detected.

    Abstract translation: 一种用于将直流光伏源耦合到交流电网并执行低电压穿越的光伏逆变器。 逆变器包括将直流电压转换为交流电压的电源桥。 开关撬棒耦合到光伏能源和功率桥。 撬棍具有开关装置,其具有闭合位置,导致开关撬棒从光伏能源消耗能量,并且打开位置以允许从光伏源直接输出到电力桥。 电压传感器检测电网上的低电压状况。 当检测到低电压状况时,控制器耦合到电压传感器并控制开关撬棒。 当来自光伏能源的电压高于预定阈值电压时,开关装置处于关闭位置,并且当低电压条件是当光伏源的电压达到电压时,开关装置处于打开位置 检测到。

    Contactor status detection in power inverters
    13.
    发明授权
    Contactor status detection in power inverters 有权
    电源逆变器中的接触器状态检测

    公开(公告)号:US08155902B2

    公开(公告)日:2012-04-10

    申请号:US12247534

    申请日:2008-10-08

    Applicant: Jun Yin Renjie Xu

    Inventor: Jun Yin Renjie Xu

    CPC classification number: H02H7/1222 G01R31/42

    Abstract: A sensor-less technique is described for detecting the status of an AC contactor of a power inverter. In one embodiment, a method is provided of sensing an unexpected condition of an AC contactor used to couple to a power distribution system a power inverter having at least one power conductor. The method includes determining a voltage value for the conductor; determining a current value for the conductor; determining a phase difference using the voltage value and the current value; and monitoring successive values of the phase difference to produce a monitoring result. Depending on the monitoring result, a determination is made whether or not to issue an alert signal. Control routines embodying such technique may be stored on computer-readable media. A power inverter using such technique is described.

    Abstract translation: 描述了一种无传感器技术来检测电力逆变器的交流接触器的状态。 在一个实施例中,提供了一种用于感测用于耦合到配电系统的具有至少一个电力导体的功率逆变器的AC接触器的意外状况的方法。 该方法包括确定导体的电压值; 确定导体的当前值; 使用电压值和电流值确定相位差; 并监视相位差的连续值以产生监视结果。 根据监视结果,确定是否发出警报信号。 体现这种技术的控制程序可以存储在计算机可读介质上。 描述使用这种技术的电力逆变器。

    Contactor Status Detection in Power Inverters
    14.
    发明申请
    Contactor Status Detection in Power Inverters 有权
    变频器接触器状态检测

    公开(公告)号:US20100088052A1

    公开(公告)日:2010-04-08

    申请号:US12247534

    申请日:2008-10-08

    Applicant: Jun Yin Renjie Xu

    Inventor: Jun Yin Renjie Xu

    CPC classification number: H02H7/1222 G01R31/42

    Abstract: A sensor-less technique is described for detecting the status of an AC contactor of a power inverter. In one embodiment, a method is provided of sensing an unexpected condition of an AC contactor used to couple to a power distribution system a power inverter having at least one power conductor. The method includes determining a voltage value for the conductor; determining a current value for the conductor; determining a phase difference using the voltage value and the current value; and monitoring successive values of the phase difference to produce a monitoring result. Depending on the monitoring result, a determination is made whether or not to issue an alert signal. Control routines embodying such technique may be stored on computer-readable media. A power inverter using such technique is described.

    Abstract translation: 描述了一种无传感器技术来检测电力逆变器的交流接触器的状态。 在一个实施例中,提供了一种用于感测用于耦合到配电系统的具有至少一个电力导体的功率逆变器的AC接触器的意外状况的方法。 该方法包括确定导体的电压值; 确定导体的当前值; 使用电压值和电流值确定相位差; 并监视相位差的连续值以产生监视结果。 根据监视结果,确定是否发出警报信号。 体现这种技术的控制程序可以存储在计算机可读介质上。 描述使用这种技术的电力逆变器。

    TDMA controller for a wireless communication system and method of operating same
    15.
    发明申请
    TDMA controller for a wireless communication system and method of operating same 有权
    用于无线通信系统的TDMA控制器及其操作方法

    公开(公告)号:US20070177515A1

    公开(公告)日:2007-08-02

    申请号:US11546671

    申请日:2006-10-12

    CPC classification number: H04W72/0446 H04B7/2659 H04W56/001 H04W92/10

    Abstract: A time division multiple access (TDMA) controller and method for operating the same includes a frame position module that generates a frame position signal. The controller also includes a signal module that generates a signal-on signal and a signal-off signal and a comparison module that generates a timing control signal based on the frame position signal, the signal-on signal and the signal-off signal.

    Abstract translation: 时分多址(TDMA)控制器及其操作方法包括产生帧位置信号的帧位置模块。 控制器还包括产生信号开启信号和信号断开信号的信号模块以及基于帧位置信号,信号接通信号和信号断开信号产生定时控制信号的比较模块。

    Identification of in-context resources that are not fully localized
    17.
    发明授权
    Identification of in-context resources that are not fully localized 有权
    识别未完全本地化的上下文资源

    公开(公告)号:US09195653B2

    公开(公告)日:2015-11-24

    申请号:US13279666

    申请日:2011-10-24

    CPC classification number: G06F17/289 G06F9/454 G06F17/211

    Abstract: Applications can be localized by localization experts to allow them to be used by a broader customer base. The localization can be done given interface context to produce more applicable results. A localization expert may determine that certain content within the interface context should be localized, however is not localizable by the expert. The localization expert may indicate that the content is localizable and the developer may receive the indication and provide the localization expert with updated interface context allowing localization of the previously un-localizable content.

    Abstract translation: 应用程序可以由本地化专家进行本地化,以使其能够被更广泛的客户群使用。 可以通过界面上下文来进行本地化,以产生更多适用的结果。 本地化专家可能会确定界面上下文中的某些内容应该是本地化的,但是不能由专家本地化。 本地化专家可以指示内容是可本地化的,并且开发者可以接收该指示并向本地化专家提供更新的界面上下文,从而允许本地化先前不可本地化的内容。

    Identification of In-Context Resources that are not Fully Localized
    18.
    发明申请
    Identification of In-Context Resources that are not Fully Localized 有权
    识别不完全本地化的背景资源

    公开(公告)号:US20150154159A1

    公开(公告)日:2015-06-04

    申请号:US13279666

    申请日:2011-10-24

    CPC classification number: G06F17/289 G06F9/454 G06F17/211

    Abstract: Applications can be localized by localization experts to allow them to be used by a broader customer base. The localization can be done given interface context to produce more applicable results. A localization expert may determine that certain content within the interface context should be localized, however is not localizable by the expert. The localization expert may indicate that the content is localizable and the developer may receive the indication and provide the localization expert with updated interface context allowing localization of the previously un-localizable content.

    Abstract translation: 应用程序可以由本地化专家进行本地化,以使其能够被更广泛的客户群使用。 可以通过界面上下文来进行本地化,以产生更多适用的结果。 本地化专家可能会确定界面上下文中的某些内容应该是本地化的,但是不能由专家本地化。 本地化专家可以指示内容是可本地化的,并且开发者可以接收该指示并向本地化专家提供更新的界面上下文,从而允许本地化先前不可本地化的内容。

    Automated project localization into multiple languages by using machine translation
    19.
    发明授权
    Automated project localization into multiple languages by using machine translation 有权
    通过机器翻译自动化项目本地化成多种语言

    公开(公告)号:US08942971B1

    公开(公告)日:2015-01-27

    申请号:US13304879

    申请日:2011-11-28

    CPC classification number: G06F17/289 G06F9/454

    Abstract: Applications can be localized by localization experts to allow them to be used by a broader customer base. The localization can be done given resource files containing localization resources. A localization resource may contain a programming component and non-programming component. The non-programming component can be sent to a machine localizer. The machine localizer may provide a plurality of localizations corresponding to a plurality of languages based on the non-programming component of the localization resource. A plurality of localized applications can be complied based on the localized non-programming components and the original programming component.

    Abstract translation: 应用程序可以由本地化专家进行本地化,以使其能够被更广泛的客户群使用。 可以在包含本地化资源的资源文件中进行本地化。 本地化资源可能包含编程组件和非编程组件。 非编程组件可以发送到机器定位器。 机器定位器可以基于本地化资源的非编程组件来提供对应于多种语言的多个本地化。 可以基于本地化的非编程组件和原始编程组件来编译多个本地化应用。

    ORGANIZING SEARCH HISTORY INTO COLLECTIONS
    20.
    发明申请
    ORGANIZING SEARCH HISTORY INTO COLLECTIONS 有权
    组织搜索历史进入收藏

    公开(公告)号:US20130006952A1

    公开(公告)日:2013-01-03

    申请号:US13172256

    申请日:2011-06-29

    CPC classification number: G06F17/30867

    Abstract: Computer-storage media, methods, and systems for improving the ability of a user to accomplish a task that is pending during a search session are provided. This pending task can be distilled by identifying a current searching intent associated with a recently submitted query and by determining which candidate tasks are most comparable to the current searching intent of a user. The candidate tasks are mined from a search history of the user by categorizing those navigation events that appear to share a semantically common concept. Upon performing a comparison, the candidate task that captures the user's true current searching intent is designated as the pending task. When a user invokes the pending task, a collection of elements that are associated with the pending task are dynamically organized into a sharable content page, thereby providing a collaborative experience that involves exposing the collection to contacts and accepting feedback therefrom.

    Abstract translation: 提供了用于提高用户在搜索会话期间完成待处理任务的能力的计算机存储介质,方法和系统。 可以通过识别与最近提交的查询相关联的当前搜索意图并且通过确定哪些候选任务与用户的当前搜索意图最相似来进行解析。 通过对看起来共享语义上共同的概念的那些导航事件进行分类,从用户的搜索历史中挖掘候选任务。 在执行比较时,捕获用户的真实当前搜索意图的候选任务被指定为待决任务。 当用户调用挂起的任务时,与挂起的任务相关联的元素的集合被动态地组织成可共​​享的内容页面,从而提供协作体验,其涉及将该集合暴露于联系人并从其接受反馈。

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