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1. 发明授权

US06563722B1 System and method for compensating for line imbalances in line commutated converters 失效
标题翻译：用于补偿线路整流转换器中线路不平衡的系统和方法
公开(公告)号：US06563722B1
公开(公告)日：2003-05-13
申请号：US09703736
申请日：2000-11-02
申请人： Vinod John , Luis Jose Garces , Peter Claudius Sanza , Paul Michael Szczesny
发明人： Vinod John , Luis Jose Garces , Peter Claudius Sanza , Paul Michael Szczesny
IPC分类号： H02H7125
CPC分类号： H02J3/1814 , H02P23/186 , Y02E40/18
摘要： A method and system for compensating for line imbalances in line commutated converters. The controller includes a phase-locked loop (PLL) synchronizing tool which receives the line to line voltage signals and generates firing angle and frequency signals used for synchronizing the two input signals. The PLL controller, in addition to the firing angle and frequency signals, also generates signals representative of filtered values of amplitudes for each of the line to line voltage signals. A voltage imbalance compensation processor associated with the bridge firing controller receives the filtered amplitude signals and also a signal representative of the firing sector of the bridge. The voltage imbalance compensation processor generates, based upon the sector signal and the received filtered amplitude signals a amplitude signal used by a current regulator which is compensated for line imbalances present in the line voltage.
摘要翻译：一种用于补偿线路换向转换器中线路不平衡的方法和系统。该控制器包括锁相环（PLL）同步工具，其接收线间电压信号，并产生用于同步两个输入信号的触发角和频率信号。除了触发角和频率信号之外，PLL控制器还产生表示每个线对电压信号的滤波值的滤波值的信号。与桥接启动控制器相关联的电压不平衡补偿处理器接收经滤波的幅度信号以及代表桥接器的发射扇区的信号。电压不平衡补偿处理器基于扇区信号和接收到的滤波幅度信号产生电流调节器使用的振幅信号，电流调节器补偿线路电压中存在的线路不平衡。

2. 发明授权

US06278623B1 System and method for compensating for voltage notches in two-phase phase locked loops 失效
标题翻译：用于补偿两相锁相环电压缺口的系统和方法
公开(公告)号：US06278623B1
公开(公告)日：2001-08-21
申请号：US09704246
申请日：2000-11-02
申请人： Luis Jose Garces , Vinod John , Peter Claudius Sanza , Paul Michael Szczesny
发明人： Luis Jose Garces , Vinod John , Peter Claudius Sanza , Paul Michael Szczesny
IPC分类号： H02M112
CPC分类号： H02M7/1623 , H02M1/12 , H02M7/1552 , H02M2007/2195 , Y02B70/1408 , Y10S388/911 , Y10S388/917
摘要： A method and system for compensating for voltage notches in phase locked loop (PLL) control devices. A bridge firing controller receives signals representative of two of the line to line voltages received by the bridge. The controller includes a PLL synchronizing tool which receives the line to line voltage signals and generates a synchronizing phase error signal for aligning the phases of the two input signals. The controller, for a predetermined period following bridge firing, determines whether a voltage notch has occurred. If so, the controller substitutes model control signals for actual control signals so as to reduce the effect of the notch on the generated phase error signal used for synchronization. If not, the controller continues to use the actual control signals to generate the phase error signal. Once the predetermined period has expired, the controller utilizes the actual control signals to generate the phase error signal.
摘要翻译：一种补偿锁相环（PLL）控制装置电压缺口的方法和系统。桥接发射控制器接收代表由桥接收的线对电压中的两个的信号。该控制器包括一个PLL同步工具，它接收线间电压信号，并产生用于对准两个输入信号的相位的同步相位误差信号。控制器在桥接点火之后的预定时间内确定是否发生了电压缺口。如果是这样，控制器将模型控制信号替换为实际控制信号，以便减小所产生的相位误差信号用于同步的影响。如果不是，则控制器继续使用实际的控制信号来产生相位误差信号。一旦预定时间段到期，控制器利用实际控制信号产生相位误差信号。

3. 发明授权

US06385066B1 Method and system for detecting a zero current level in a line commutated converter 有权
标题翻译：用于检测线路整流转换器中的零电流电平的方法和系统
公开(公告)号：US06385066B1
公开(公告)日：2002-05-07
申请号：US09702642
申请日：2000-11-01
申请人： Luis Jose Garces , Vinod John , Peter Claudius Sanza , Paul Michael Szczesny
发明人： Luis Jose Garces , Vinod John , Peter Claudius Sanza , Paul Michael Szczesny
IPC分类号： H02M542
CPC分类号： H02M1/32 , H02M7/1623 , H02M2001/0012
摘要： A method and system for determining zero current level occurrences in a reversible power converter without requiring additional component complexity and costs. A digital controller selectively determines the line to line voltage for the most recently fired thyristor pair. The selected line to line voltage is identified as the bridge reconstruction voltage and is compared against the actual bridge output voltage for the conducting bridge. The difference between the two voltage signals is identified as the bridge error voltage and the sign of its magnitude is indicative of a load current zero level occurrence. A zero current level occurrence happens whenever the bridge error voltage drops below zero. This indication is positive and substantially instantaneous and safely enables the reversal of power flow without the risk of line faults due to cross-bridge short circuits.
摘要翻译：用于确定可逆功率转换器中的零电流电平发生的方法和系统，而不需要额外的组件复杂性和成本。数字控制器选择性地确定最近烧制的晶闸管对的线间电压。所选择的线间电压被确定为桥重建电压，并与导电桥的实际桥输出电压进行比较。两个电压信号之间的差异被识别为桥接误差电压，其大小的符号表示负载电流零电平发生。每当桥接误差电压低于零时，就会发生零电流电平。该指示是正的并且基本上是瞬时的并且安全地实现功率流的反转，而不会由于交叉桥短路而导致线路故障的风险。

4. 发明授权

US07016793B2 Method and apparatus for anti-islanding protection of distributed generations 有权
标题翻译：分散世代防孤岛保护的方法和装置
公开(公告)号：US07016793B2
公开(公告)日：2006-03-21
申请号：US10677559
申请日：2003-10-01
申请人： Zhihong Ye , Vinod John , Changyong Wang , Luis Jose Garces , Rui Zhou , Lei Li , Reigh Allen Walling , William James Premerlani , Peter Claudius Sanza , Yan Liu , Mark Edward Dame
发明人： Zhihong Ye , Vinod John , Changyong Wang , Luis Jose Garces , Rui Zhou , Lei Li , Reigh Allen Walling , William James Premerlani , Peter Claudius Sanza , Yan Liu , Mark Edward Dame
IPC分类号： G01R21/00 , H02J1/00 , H02M7/00
CPC分类号： G01R19/2513 , H02J3/383 , H02J2003/388 , Y02E10/563 , Y10T307/398 , Y10T307/511
摘要： An apparatus for anti-islanding protection of a distributed generation with respect to a feeder connected to an electrical grid is disclosed. The apparatus includes a sensor adapted to generate a voltage signal representative of an output voltage and/or a current signal representative of an output current at the distributed generation, and a controller responsive to the signals from the sensor. The controller is productive of a control signal directed to the distributed generation to drive an operating characteristic of the distributed generation out of a nominal range in response to the electrical grid being disconnected from the feeder.
摘要翻译：公开了一种用于相对于连接到电网的馈线的分布式发电的防孤岛保护的装置。该装置包括适于产生代表输出电压的电压信号和/或表示分布式发电时的输出电流的电流信号的传感器，以及响应于来自传感器的信号的控制器。所述控制器响应于所述电网与所述馈线断开而产生指向所述分布式发电的控制信号以驱动所述分布式发电的工作特性在标称范围之外。

5. 发明授权

US5691626A Active damping control for active power filter 失效
标题翻译：有源电力滤波器的主动阻尼控制
公开(公告)号：US5691626A
公开(公告)日：1997-11-25
申请号：US474212
申请日：1995-06-07
申请人： Albert Andreas Maria Esser , Paul Michael Szczesny , Jeffrey Joseph Nasadoski , Robert Joseph Bastian , Peter Claudius Sanza
发明人： Albert Andreas Maria Esser , Paul Michael Szczesny , Jeffrey Joseph Nasadoski , Robert Joseph Bastian , Peter Claudius Sanza
IPC分类号： H02J3/01 , H02J3/18 , G05F3/00 , G05F1/70
CPC分类号： H02J3/1835 , H02J3/01 , Y02E40/22
摘要： An active damping control device for an active power filter includes a filter circuit having an inductor and a capacitor for suppressing noise in the active power filter; a first current sensor for sensing a three phase capacitor current of the filter capacitor; a second current sensor for detecting a three phase load current; and an active power filter controller for extracting the fundamentals of the capacitor and load currents and calculating a reference current for the active power filter. The active power filter controller can include a phase locked loop device or a notch filter for receiving a grid voltage and providing a corresponding voltage angle; first and second discrete fourier transform devices for using the voltage angle and the capacitor and load currents for extracting the fundamentals of the capacitor and load currents, respectively, and providing respective first and second output currents; and a subtractor for subtracting the first output current from the second output current to obtain the reference current. The active power filter can further include, situated between the first discrete fourier transform device and the subtractor, a multiplier for multiplying the first output current by a predetermined factor and a high pass filter for filtering the first output current. The filter circuit can include a circuit breaker coupling the inductor, the capacitor, and the first current sensor to the load for providing overcurrent protection to the filter circuit.
摘要翻译：一种有源电力滤波器的主动阻尼控制装置，包括具有用于抑制有源电力滤波器中的噪声的电感器和电容器的滤波电路; 用于感测滤波电容器的三相电容器电流的第一电流传感器; 用于检测三相负载电流的第二电流传感器; 以及有源电力滤波器控制器，用于提取电容器的基本原理和负载电流，并计算有功功率滤波器的参考电流。有源电力滤波器控制器可以包括锁相环装置或陷波滤波器，用于接收电网电压并提供对应的电压角; 第一和第二离散傅里叶变换装置，分别使用电压角和电容器和负载电流分别提取电容器的基本面和负载电流，并提供相应的第一和第二输出电流; 以及用于从第二输出电流减去第一输出电流以获得参考电流的减法器。有源电力滤波器可以进一步包括位于第一离散傅里叶变换装置和减法器之间的乘法器，用于将第一输出电流乘以预定因子，以及用于过滤第一输出电流的高通滤波器。滤波器电路可以包括将电感器，电容器和第一电流传感器耦合到负载的断路器，以向滤波器电路提供过电流保护。

6. 发明授权

US07885375B2 Method and system for X-ray imaging 失效
标题翻译： X射线成像方法与系统
公开(公告)号：US07885375B2
公开(公告)日：2011-02-08
申请号：US12254732
申请日：2008-10-20
申请人： Bruno Kristiaan Bernard De Man , Daniel David Harrison , Maria Iatrou , Brian Patrick Smyth , Zhye Yin , Samit Kumar Basu , Souma Sengupta , Peter Claudius Sanza
发明人： Bruno Kristiaan Bernard De Man , Daniel David Harrison , Maria Iatrou , Brian Patrick Smyth , Zhye Yin , Samit Kumar Basu , Souma Sengupta , Peter Claudius Sanza
IPC分类号： G01N23/00
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4014 , A61B6/4028 , A61B6/4085 , A61B6/4266
摘要： A technique is provided for imaging a field of view using an X-ray source comprising two or more emission points. The two or more emission points may be independently operated. Independent operation of the two or more emission points in performed in accordance with a list of commands that specifies the operation of the emission points. The list of commands, in one embodiment, is stored in a sequence buffer. In other embodiments, the list of commands is generated for a given usage, without being stored in a sequence buffer.
摘要翻译：提供了一种使用包括两个或更多个发射点的X射线源对视场成像的技术。两个或更多个发射点可以独立地操作。根据指定发射点的操作的命令的列表来执行两个或更多个发射点的独立操作。在一个实施例中，命令列表存储在序列缓冲器中。在其他实施例中，为给定的使用生成命令列表，而不被存储在序列缓冲器中。

7. 发明申请

US20090161816A1 METHOD AND SYSTEM FOR X-RAY IMAGING 失效
标题翻译： X射线成像的方法和系统
公开(公告)号：US20090161816A1
公开(公告)日：2009-06-25
申请号：US12254732
申请日：2008-10-20
申请人： Bruno Kristiaan Bernard De Man , Daniel David Harrison , Maria Iatrou , Brian Patrick Smyth , Zhye Yin , Samit Kumar Basu , Souma Sengupta , Peter Claudius Sanza
发明人： Bruno Kristiaan Bernard De Man , Daniel David Harrison , Maria Iatrou , Brian Patrick Smyth , Zhye Yin , Samit Kumar Basu , Souma Sengupta , Peter Claudius Sanza
IPC分类号： A61B6/00 , H05G1/70
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4014 , A61B6/4028 , A61B6/4085 , A61B6/4266
摘要： A technique is provided for imaging a field of view using an X-ray source comprising two or more emission points. The two or more emission points may be independently operated. Independent operation of the two or more emission points in performed in accordance with a list of commands that specifies the operation of the emission points. The list of commands, in one embodiment, is stored in a sequence buffer. In other embodiments, the list of commands is generated for a given usage, without being stored in a sequence buffer.
摘要翻译：提供了一种使用包括两个或更多个发射点的X射线源对视场成像的技术。两个或更多个发射点可以独立地操作。根据指定发射点的操作的命令的列表来执行两个或更多个发射点的独立操作。在一个实施例中，命令列表存储在序列缓冲器中。在其他实施例中，为给定的使用生成命令列表，而不被存储在序列缓冲器中。

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