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    Series arc fault current interrupters and methods
    3.
    发明申请
    Series arc fault current interrupters and methods 有权
    串联电弧故障电流中断器及方法

    公开(公告)号：US20090059449A1

    公开(公告)日：2009-03-05

    申请号：US12290246

    申请日：2008-10-29

    申请人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    发明人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    IPC分类号： H02H3/00

    CPC分类号： H02H1/0015

    摘要： A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circuit, and a high-pass filter circuit. The trip mechanism selectively opens the separable contacts when activated. The series arc detection sequence is resident on the microprocessor and includes a plurality of series fault detection algorithms. The low-pass filter circuit provides a low-pass signal to the series arc detection sequence. The high-pass filter circuit provides a high-pass signal to the series arc detection sequence. The sequence selects a particular algorithm from the plurality of algorithms based on the low-pass signal. The sequence calculates a plurality of statistical features from the high-pass signal and sends an output signal to activate the trip mechanism based on a comparison of the plurality of statistical features to the particular algorithm.

    摘要翻译： 提供了用于中断线路导体上的电流的断路器。 电路断路器包括可分离触点，跳闸机构，双金属，微处理器，串联电弧检测序列，低通滤波器电路和高通滤波器电路。 跳闸机构在激活时选择性地打开可分离触点。 串联电弧检测序列驻留在微处理器上，包括多个串联故障检测算法。 低通滤波器电路为串联电弧检测序列提供低通信号。 高通滤波电路为串联电弧检测序列提供高通信号。 该序列基于低通信号从多个算法中选择特定的算法。 该序列从高通信号计算多个统计特征，并且基于多个统计特征与特定算法的比较来发送输出信号以激活跳闸机制。

    Series arc fault current interrupters and methods
    4.
    发明授权
    Series arc fault current interrupters and methods 有权
    串联电弧故障电流中断器及方法

    公开(公告)号：US07463465B2

    公开(公告)日：2008-12-09

    申请号：US11646733

    申请日：2006-12-28

    申请人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    发明人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    IPC分类号： H02H3/16

    CPC分类号： H02H1/0015

    摘要： A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circuit, and a high-pass filter circuit. The trip mechanism selectively opens the separable contacts when activated. The series arc detection sequence is resident on the microprocessor and includes a plurality of series fault detection algorithms. The low-pass filter circuit provides a low-pass signal to the series arc detection sequence. The high-pass filter circuit provides a high-pass signal to the series arc detection sequence. The sequence selects a particular algorithm from the plurality of algorithms based on the low-pass signal. The sequence calculates a plurality of statistical features from the high-pass signal and sends an output signal to activate the trip mechanism based on a comparison of the plurality of statistical features to the particular algorithm.

    摘要翻译： 提供了用于中断线路导体上的电流的断路器。 电路断路器包括可分离触点，跳闸机构，双金属，微处理器，串联电弧检测序列，低通滤波器电路和高通滤波器电路。 跳闸机构在激活时选择性地打开可分离触点。 串联电弧检测序列驻留在微处理器上，包括多个串联故障检测算法。 低通滤波器电路为串联电弧检测序列提供低通信号。 高通滤波电路为串联电弧检测序列提供高通信号。 该序列基于低通信号从多个算法中选择特定算法。 该序列从高通信号计算多个统计特征，并且基于多个统计特征与特定算法的比较来发送输出信号以激活跳闸机制。

    METHOD AND SYSTEM FOR ASSESSING THE PERFORMANCE OF CRUDE OILS
    5.
    发明申请
    METHOD AND SYSTEM FOR ASSESSING THE PERFORMANCE OF CRUDE OILS 有权
    评估原油性能的方法和系统

    公开(公告)号：US20080147365A1

    公开(公告)日：2008-06-19

    申请号：US11610587

    申请日：2006-12-14

    申请人： Vijaysai Prasad ,  Yatin Tayalia ,  Sunil Shirish Shah ,  Collin W. Cross

    发明人： Vijaysai Prasad ,  Yatin Tayalia ,  Sunil Shirish Shah ,  Collin W. Cross

    IPC分类号： G06G7/48

    CPC分类号： G06Q10/04

    摘要： A methodology and system is disclosed which addresses outstanding needs of refiners to process cheaper crudes or blends of crudes. This method and system comprises a number of steps, including characterizing the impact of various constituents in the crude which result in fouling of heat exchangers; estimating model parameters; monitoring and predicting qualitative and quantitative performance; and determining optimal dosage of chemical treatments.

    摘要翻译： 公开了一种方法和系统，其解决了炼油厂处理廉价原油或原油混合物的突出需求。 该方法和系统包括多个步骤，包括表征粗品中各种成分的影响，导致热交换器结垢; 估计模型参数; 监测和预测定性和定量性能; 并确定化学处理的最佳剂量。

    ADVISORY CONTROLS OF DESALTER SYSTEM
    6.
    发明申请
    ADVISORY CONTROLS OF DESALTER SYSTEM 审中-公开
    塔式系统咨询控制

    公开(公告)号：US20130024026A1

    公开(公告)日：2013-01-24

    申请号：US13187819

    申请日：2011-07-21

    申请人： Vijaysai Prasad ,  Jayaprakash Sandhala Radhakrishnan ,  Jeffrey Allen Zurlo ,  Richard Stephen Hutte ,  Arjun Bhattacharyya ,  Manish Joshi

    发明人： Vijaysai Prasad ,  Jayaprakash Sandhala Radhakrishnan ,  Jeffrey Allen Zurlo ,  Richard Stephen Hutte ,  Arjun Bhattacharyya ,  Manish Joshi

    IPC分类号： G05B21/02

    CPC分类号： C10G33/08 ,  B01D17/04 ,  B01D17/12 ,  C10G31/08 ,  C10G33/04 ,  C10G2300/80 ,  G01F23/2962

    摘要： The present invention concerns a method of providing advisory controls for a desalter system. The method allows a user to continuously monitor performance of the desalter system, to continuously monitor position of the emulsion band (or rag layer), to control the emulsion band using demulsifiers, and to recommend to users how to maintain optimal pressure drop at the mix valve of the desalter system. This is achieved by using a first principles based model combined with an ultra-sound sensor. The ultra-sound sensor measures the position, quality and size of the emulsion band. The first principles based model takes into account the geometry of the desalter system, physical properties of the crude oil and water, as well as the operating conditions. Thus, the method provides users with sensing of an emulsion layer through ultrasound measurements and also gives recommendations on appropriate corrective actions to be initiated during upsets.

    摘要翻译： 本发明涉及一种为脱盐系统提供咨询控制的方法。 该方法允许用户连续监测脱盐系统的性能，连续监测乳胶带（或抹布层）的位置，使用破乳剂控制乳胶带，并向用户推荐如何在混合物中保持最佳压降 脱盐系统的阀门。 这通过使用与超声传感器组合的第一原理模型来实现。 超声传感器测量乳胶带的位置，质量和尺寸。 第一个基于原理的模型考虑了脱盐系统的几何形状，原油和水的物理性质以及操作条件。 因此，该方法通过超声波测量为用户提供对乳剂层的感测，并且还提供了在混乱期间启动的适当纠正措施的建议。

    SERIES ARC FAULT CURRENT INTERRUPTER APPARATUS
    9.
    发明申请
    SERIES ARC FAULT CURRENT INTERRUPTER APPARATUS 审中-公开
    系列ARC故障电流中断器

    公开(公告)号：US20090168277A1

    公开(公告)日：2009-07-02

    申请号：US11965888

    申请日：2007-12-28

    申请人： Sriram Changali ,  Vijaysai Prasad ,  Cecil Rivers,, JR. ,  Pradeep Vijayan

    发明人： Sriram Changali ,  Vijaysai Prasad ,  Cecil Rivers,, JR. ,  Pradeep Vijayan

    IPC分类号： H02H3/00

    CPC分类号： H02H1/0015 ,  H02H1/0092

    摘要： A circuit interrupter for interrupting alternating current electrical signal on a line conductor of a circuit feeding a load, including: an electrical contact in operatively connected in series with the line conductor; a trip mechanism for selectively opening the electrical contact when activated; a current sensor connected in series with the line conductor for obtaining a sample alternating current electrical signal from the circuit feeding the load; a microprocessor in electrical communication with the trip mechanism and comprising a series arc fault detection program resident thereon; the series arc detection program comprising a discrete wavelet transform for determining the presence of a series arc fault current in the circuit feeding the load; wherein, when the discrete wavelet transform determines the presence of a series arc fault, the microprocessors signals the trip mechanism to activate and open the electrical contact in operatively connected in series with the line conductor.

    摘要翻译： 一种用于中断馈电负载的电路的线路导体上的交流电信号的电路断路器，包括：与所述线路导体串联操作地连接的电触点; 用于当激活时选择性地打开电触点的跳闸机构; 与线路导体串联连接的电流传感器，用于从馈电负载的电路得到样品交流电信号; 与所述跳闸机构电通信并包括驻留在其上的串联故障检测程序的微处理器; 所述串联电弧检测程序包括用于确定在馈送负载的电路中存在串联电弧故障电流的离散小波变换; 其中，当所述离散小波变换确定串联电弧故障的存在时，所述微处理器向所述跳闸机构发出信号以激活并打开与所述线路导体串联操作地连接的所述电触头。