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    • 3. 发明申请
    • METHOD AND APPARATUS OF AN IMPROVEMENT IN PWM SWITCHING PATTERNS
    • PWM开关模式改进的方法与装置
    • US20100172167A1
    • 2010-07-08
    • US12350253
    • 2009-01-08
    • YANG YE
    • YANG YE
    • H02M7/537
    • H02M7/1626H02M7/521H02M7/53871
    • An improvement in PWM switching patterns applicable for almost all voltage source converters is disclosed. Conventional PWM switching patterns, including carrier based PWM, spacer vector PWM, hysteretic switching pattern, etc, contain a lot of unnecessary switching events. In the present invention, most of the unnecessary switching events are eliminated. The benefits of the method include the significant reduction in control power dissipation which is very attractive especially in high power applications; no risk of shoot through; and no need for deadtime. This method can be easily applied to all existing switching patterns with a little modification. The modification can be in hardware, if the original switching pattern is generated in hardware; it can also be in software, if the original switching pattern is generated in software.
    • 公开了适用于几乎所有电压源转换器的PWM开关模式的改进。 传统的PWM开关模式,包括基于载波的PWM,间隔矢量PWM,迟滞开关模式等都包含大量不必要的开关事件。 在本发明中,消除了大部分不必要的切换事件。 该方法的优点包括显着降低控制功耗,这在大功率应用中尤其有吸引力; 没有拍摄的风险; 而不需要死时间。 该方法可以很容易地应用于所有现有的切换模式,稍加修改。 如果在硬件中生成原始切换模式,则修改可以是硬件; 如果以软件生成原始切换模式,也可以在软件中。
    • 4. 发明申请
    • AD COPY QUALITY DETECTION AND SCORING
    • AD复制质量检测和分级
    • US20110313865A1
    • 2011-12-22
    • US12817928
    • 2010-06-17
    • ALEKSEY Y. SINYAGINYANG YEYI-MIN WANGKUANSAN WANG
    • ALEKSEY Y. SINYAGINYANG YEYI-MIN WANGKUANSAN WANG
    • G06Q30/00G06F15/18
    • G06Q30/0273G06F17/274G06Q30/0241G06Q30/0277
    • Methods, systems, and computer-readable media for evaluating the quality of text within online advertisements using output from a language model are provided. The output from the language model may be used by a machine-learning algorithm to generate a quality score for an individual advertisement. The quality score may be used to filter out advertisements with poor text quality or to tax or penalize an advertisement within an online auction. The ad quality scores may also be used to rank or score advertisers that submit the ads. In one embodiment, the advertiser's quality score is combined with an individual ad's quality score to create a final score, which is used to evaluate the advertisement. The advertiser rank/score and ad quality score may be communicated to an advertiser as advertiser feedback.
    • 提供了使用语言模型的输出来评估在线广告内的文本质量的方法,系统和计算机可读介质。 来自语言模型的输出可以由机器学习算法使用以产生个体广告的质量得分。 质量得分可用于过滤掉具有较差文本质量的广告,或者在网络拍卖中对广告进行税收或惩罚。 广告质量得分也可用于对提交广告的广告客户进行排名或评分。 在一个实施例中,广告商的质量得分与个人广告的质量得分相结合以创建用于评估广告的最终得分。 广告客户的排名/得分和广告质量得分可以作为广告客户反馈传达给广告客户。
    • 5. 发明申请
    • METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION
    • 用于通用交流和直流电弧故障检测和保护的方法和装置
    • US20110012607A1
    • 2011-01-20
    • US12890861
    • 2010-09-27
    • HASSAN ALI KOJORIYANG YE
    • HASSAN ALI KOJORIYANG YE
    • G01R31/08
    • H02H1/0015H02H3/0935
    • According to the features discussed herein, through a single generalized arc-fault detection algorithm, various types of series and/or parallel arc faults can be detected without any nuisance trip for either AC or DC Electric Power Systems. Running Discrete Fourier Series (RDFS) formulation for nuisance-free operation and cost-effective implementation is developed. Unlike other methods which require numerous source and load-side current and voltage measurements, only source side current is required. An arc detector may include a first detector to monitor variations of a magnitude of a fundamental component of a current, and a second detector to monitor an overload condition based in an i2t calculation. A method may include obtaining a first cycle of a fundamental component of a current, obtaining a second cycle of the fundamental component of the current, and comparing the first cycle of the fundamental component of the current and the second cycle of the fundamental component of the current to determine if a difference of the first cycle and the second cycle is greater than a threshold amount.
    • 根据本文所讨论的特征,通过单一的广义电弧故障检测算法,可以检测各种类型的串联和/或并联电弧故障,而无需任何AC或DC电力系统的扰动跳闸。 开发了运行离散傅立叶级数(RDFS)制定无障碍操作和成本效益实施。 与需要大量源极和负载侧电流和电压测量的其他方法不同,仅需要源极侧电流。 电弧检测器可以包括第一检测器,用于监测电流的基波分量的幅度的变化,以及第二检测器,用于监测基于i2t计算的过载状况。 一种方法可以包括获得电流的基波分量的第一周期,获得电流的基波分量的第二周期,以及比较电流的基波分量的当前和第二周期的基波分量的第一周期 电流以确定第一周期和第二周期的差是否大于阈值量。
    • 6. 发明申请
    • METHOD AND APPARATUS OF A MAXIMUM POWER POINT TRACKING CIRCUIT FOR SOLAR POWER GENERATION
    • 用于太阳能发电的最大功率点跟踪电路的方法和装置
    • US20100171482A1
    • 2010-07-08
    • US12350252
    • 2009-01-08
    • YANG YESheng Tao
    • YANG YESheng Tao
    • G05F5/00
    • G05F1/67
    • A circuit that tracks the maximum power point of the solar cell is disclosed in the present invention. Unlikely conventional way of maximum power point tracking (maximum power point is referred to as MPP hereinafter; maximum power point tracking is referred to as MPPT hereinafter) which tracks MPP in the time frame of second or minutes, in the disclosed invention, MPP is tracked within the switching cycle, using the natural current ripple of the downstream converter circuit. The switching cycle is in the order of 10s of micro-seconds. Within the switching cycle of the converter, there is a natural current ripple which will result in the power change. The MPPT circuit tracks the power change and adjusts the current reference value accordingly to operate at MPP of the solar cell.
    • 在本发明中公开了跟踪太阳能电池的最大功率点的电路。 在所公开的发明中,不寻常的最大功率点跟踪方法(最大功率点在下文中称为MPP,下文称为MPPT,称为MPPT),其在第二或分钟的时间帧内跟踪MPP,在MPP中被跟踪 在开关周期内,使用下游转换电路的自然电流纹波。 开关周期为10秒的微秒级。 在转换器的开关周期内,有一个自然的电流纹波会导致电源变化。 MPPT电路跟踪功率变化并相应地调整电流参考值以在太阳能电池的MPP处工作。