Photovoltaic inverter with control for performing low voltage ride through
    1.
    发明授权
    Photovoltaic inverter with control for performing low voltage ride through 失效
    用于执行低电压穿越的光伏逆变器

    公开(公告)号:US08687328B2

    公开(公告)日:2014-04-01

    申请号:US12902730

    申请日:2010-10-12

    申请人: Jun Yin Renjie Xu

    发明人: Jun Yin Renjie Xu

    摘要: 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.

    摘要翻译: 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。

    PHOTOVOLTAIC INVERTER WITH CONTROL FOR PERFORMING LOW VOLTAGE RIDE THROUGH
    2.
    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

    申请人: Jun Yin Renjie Xu

    发明人: Jun Yin Renjie Xu

    IPC分类号: H02H9/04

    摘要: 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.

    摘要翻译: 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
    3.
    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

    申请人: Jun Yin Renjie Xu

    发明人: Jun Yin Renjie Xu

    CPC分类号: H02H7/1222 G01R31/42

    摘要: 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.

    摘要翻译: 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
    4.
    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

    申请人: Jun Yin Renjie Xu

    发明人: Jun Yin Renjie Xu

    IPC分类号: G01R27/00

    CPC分类号: H02H7/1222 G01R31/42

    摘要: 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.

    摘要翻译: 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。

    NANOCOMPOSITE MEMBRANES WITH ADVANCED ANTIFOULING PROPERTIES UNDER VISIBLE LIGHT IRRADIATION
    5.
    发明申请
    NANOCOMPOSITE MEMBRANES WITH ADVANCED ANTIFOULING PROPERTIES UNDER VISIBLE LIGHT IRRADIATION 有权
    具有可见光照射下的高级抗反射特性的纳米复合膜

    公开(公告)号:US20160045874A1

    公开(公告)日:2016-02-18

    申请号:US14821390

    申请日:2015-08-07

    申请人: Baolin Deng Jun Yin

    发明人: Baolin Deng Jun Yin

    IPC分类号: B01D69/08 B01D71/34 B01D65/08

    摘要: Nitrogen doped TiO2 (N—TiO2) is used to fabricate Poly(vinylene fluoride) (PVDF)/N—TiO2 mixed matrix hollow fiber membranes (HFMs) through a phase inversion method to improve filtration efficiencies and antifouling properties. The membranes performances were evaluated based on the water permeability, humic acid (HA) rejection and antifouling properties. Resulting membranes showed brown color and improved hydrophilicity, especially under light irradiation. When compared to original PVDF and PVDF/P25 membrane, mixed matrix membranes containing N—TiO2 nanoparticles (NPs) showed clear photocatalytic activities under visible light irradiation. Also, membrane performance assessments indicated that PVDF/N—TiO2 membranes possessed enhanced water flux, similar HA rejection (e.g., above 96%) and improved fouling resistance with PVDF membranes as a control. The results demonstrate the potential of the suggested methodology for development of membranes with improved water permeability and superior antifouling properties based on photo-degradation processes and photo-induced hydrophilicity enhancement driven by solar light as a renewable energy source.

    摘要翻译: 氮掺杂的TiO2(N-TiO2)用于通过相转化法制备聚(亚乙烯基氟)(PVDF)/ N-TiO2混合基质中空纤维膜(HFM),以提高过滤效率和防污性能。 膜性能基于透水性,腐殖酸(HA)排斥和防污性能进行评估。 所得膜显示褐色和改善的亲水性,特别是在光照射下。 与原始PVDF和PVDF / P25膜相比,含有N-TiO2纳米粒子(NP)的混合基质膜在可见光照射下显示出明显的光催化活性。 此外,膜性能评估表明,PVDF / N-TiO2膜具有增强的水通量,类似的HA排斥(例如高于96%),并且以PVDF膜作为对照改善了耐污垢性。 结果表明了基于光降解过程和由太阳光作为可再生能源驱动的光诱导亲水性增强的改进的水渗透性和优异的防污性质的膜的开发方法的潜力。

    DOCUMENT TRANSLATION INCLUDING PRE-DEFINED TERM TRANSLATOR AND TRANSLATION MODEL
    6.
    发明申请
    DOCUMENT TRANSLATION INCLUDING PRE-DEFINED TERM TRANSLATOR AND TRANSLATION MODEL 有权
    文件翻译,包括预先定义的翻译和翻译模型

    公开(公告)号:US20150161113A1

    公开(公告)日:2015-06-11

    申请号:US13555405

    申请日:2012-07-23

    IPC分类号: G06F17/28

    摘要: A computer-implemented method includes receiving, at a translation server in communication with a network, a request for a translation of text in a source language to a target language. At least a portion of the text is translated at the translation server from the source language to the target language to obtain a translated version of the text in the target language. Translating the text includes determining one or more terms from the text corresponding to a pre-defined term translator, applying the pre-defined term translator to the one or more terms, and translating a set of additional terms from the text from the source language to the target language via a translation model. The method additionally includes providing, via the translation server, the translated version of the text to a web server.

    摘要翻译: 计算机实现的方法包括在与网络通信的翻译服务器处接收将源语言中的文本翻译成目标语言的请求。 文本的至少一部分在翻译服务器处从源语言翻译成目标语言,以获得目标语言的文本的翻译版本。 翻译文本包括从与预定义的术语翻译器相对应的文本确定一个或多个术语,将预定义的术语翻译器应用于一个或多个术语,以及将来自源语言的文本中的一组附加术语翻译成 目标语言通过翻译模型。 该方法还包括经由翻译服务器将文本的翻译版本提供给web服务器。

    DISPLAY TWO KEYBOARDS ON ONE TABLET COMPUTER TO ALLOW TWO USERS TO CHAT IN DIFFERENT LANGUAGES
    7.
    发明申请
    DISPLAY TWO KEYBOARDS ON ONE TABLET COMPUTER TO ALLOW TWO USERS TO CHAT IN DIFFERENT LANGUAGES 审中-公开
    在一个平板计算机上显示两个键盘,以允许两个用户在不同的语言中播放

    公开(公告)号:US20130297287A1

    公开(公告)日:2013-11-07

    申请号:US13465241

    申请日:2012-05-07

    申请人: Jun Yin

    发明人: Jun Yin

    IPC分类号: G06F17/28

    CPC分类号: G06F17/289 G06F3/04886

    摘要: A system and related techniques for communicating in different languages between two users on a mobile computing device is provided. The system includes a communication module, a user interface module and a display. The communication module receives a first language communication and requests a first translated communication in a second language that corresponds to the first language. The communication module receives a second language communication and requests a second translated communication in the first language that corresponds to the second language. The user interface module generates a first output corresponding to the first translated communication and generates a second output corresponding to the second translated communication. The display includes a first display region that displays the first language communication and a second display region that displays the first output. The first display region and the second display region are offset relative to each other on the display.

    摘要翻译: 提供了一种用于在移动计算设备上的两个用户之间用不同语言进行通信的系统和相关技术。 该系统包括通信模块,用户接口模块和显示器。 通信模块接收第一语言通信并请求与第一语言相对应的第二语言的第一翻译通信。 通信模块接收第二语言通信并请求与第二语言相对应的第一语言的第二翻译通信。 用户接口模块生成对应于第一翻译通信的第一输出,并产生对应于第二翻译通信的第二输出。 显示器包括显示第一语言通信的第一显示区域和显示第一输出的第二显示区域。 第一显示区域和第二显示区域在显示器上相对于彼此偏移。

    Providing objective and people results for search
    8.
    发明授权
    Providing objective and people results for search 有权
    为客户提供搜索结果

    公开(公告)号:US08538960B2

    公开(公告)日:2013-09-17

    申请号:US13204631

    申请日:2011-08-05

    IPC分类号: G06F17/30

    摘要: Search results may include both objective results and person results. In one example, a search query is evaluated to determine whether it is the type of query that a user might want to ask to a friend. If the query is of such a type, then the search engine may examine a social graph to determine which friends of the user who entered the query may have information that is relevant to answering the query. If such friends exist, then the friends may be displayed along with objective search results, along with an explanation of each friend's relevance to the query. Clicking on a person in the results may cause a conversation to be initiated with that person, thereby allowing the user who entered the query to ask his or her friend about the subject of the query.

    摘要翻译: 搜索结果可能包括客观结果和个人结果。 在一个示例中,评估搜索查询以确定用户可能想要向朋友询问的查询的类型。 如果查询是类似的,则搜索引擎可以检查社交图来确定输入查询的用户的哪些朋友可能具有与回答查询相关的信息。 如果存在这样的朋友,那么朋友可以与客观的搜索结果一起显示,以及每个朋友对查询的相关性的解释。 点击结果中的某人可能会导致与该人发起对话,从而允许输入查询的用户向其或朋友询问查询的主题。

    Automatically generating unit test cases which can reproduce runtime problems
    9.
    发明授权
    Automatically generating unit test cases which can reproduce runtime problems 失效
    自动生成可以重现运行时问题的单元测试用例

    公开(公告)号:US08245194B2

    公开(公告)日:2012-08-14

    申请号:US11873572

    申请日:2007-10-17

    IPC分类号: G06F9/44

    CPC分类号: G06F11/3688

    摘要: A method and system for automatically generating unit test cases for a computer program that can reproduce runtime problems. The method comprises: modifying the computer program according to one or more interested target program units in the program and possibly occurring run time problems; test executing the modified program; and automatically generating unit test cases according to the interested runtime problems occurring during the execution of the interested target program units. Wherein the modifying step adds captor code and problem detective code into the program, the captor code being configured to record the execution paths and execution contexts of the interested target program units in the program; and the problem detective code being configured to detect the interested unexpected exceptions possibly raised and the interested violations of predefined behavior rules possibly produced by the execution of the program units. The present invention further provides methods and systems for debugging and for regression testing using the above method, and a computer program testing method and system.

    摘要翻译: 一种用于自动生成可以重现运行时问题的计算机程序的单元测试用例的方法和系统。 该方法包括:根据程序中的一个或多个感兴趣的目标程序单元修改计算机程序,并可能发生运行时问题; 测试执行修改的程序; 并根据感​​兴趣的目标程序单元执行期间发生的感兴趣的运行时问题自动生成单元测试用例。 其中,所述修改步骤将所述捕获器代码和问题检测码添加到所述程序中,所述捕获器代码被配置为在所述程序中记录所述感兴趣的目标程序单元的执行路径和执行上下文; 并且所述问题检测代码被配置为检测可能引起的感兴趣的意外异常以及可能由执行程序单元产生的预定行为规则的感兴趣的违反。 本发明还提供了使用上述方法进行调试和回归测试的方法和系统,以及计算机程序测试方法和系统。

    Optical reading apparatus having variable settings
    10.
    发明授权
    Optical reading apparatus having variable settings 有权
    具有可变设置的光学读取装置

    公开(公告)号:US09262662B2

    公开(公告)日:2016-02-16

    申请号:US14416147

    申请日:2012-07-31

    申请人: Xin Chen Jun Yin

    发明人: Xin Chen Jun Yin

    IPC分类号: G06K19/00 G06K7/10

    摘要: A laser scanning indicia reading apparatus (1000) comprises one or more adjustable aperture assemblies (2024) for adjusting the diameter of a laser beam and adjustable lens assemblies (2026) for adjusting the distance of a laser beam waist (W).

    摘要翻译: 激光扫描标记读取装置(1000)包括用于调节激光束的直径的一个或多个可调整孔径组件(2024)和用于调节激光束腰部(W)的距离的可调节透镜组件(2026)。