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1.发明授权System and method for compensating for line imbalances in line commutated converters 失效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
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。
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2.发明授权System and method for compensating for voltage notches in two-phase phase locked loops 失效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
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。
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3.发明授权Method and system for detecting a zero current level in a line commutated converter 有权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
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。
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4.发明授权公开(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
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。
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公开(公告)号：US20100049486A1
公开(公告)日：2010-02-25
申请号：US12196839
申请日：2008-08-22
申请人： Chunchun Xu , Allen Michael Ritter , David Smith , Luis Jose Garces , Robert Allen Seymour , Mark Eugene Shepard , James Michael Nowak , Bruce Allen Gerritsen , Paul Michael Szczesny
发明人： Chunchun Xu , Allen Michael Ritter , David Smith , Luis Jose Garces , Robert Allen Seymour , Mark Eugene Shepard , James Michael Nowak , Bruce Allen Gerritsen , Paul Michael Szczesny
IPC分类号： G06G7/66
CPC分类号： G05B17/02 , G05B2219/23446
摘要： Embodiments of methods and systems of a system for simulating a plant are provided. According to one exemplary embodiment of the invention, there is disclosed a system for simulating a plant. The system may include a controller including plant operation logic for executing control commands to the plant. The system may further include a simulator in communication with the controller, where the simulator may consist of high bandwidth hardware having at least one high bandwidth model of at least a first plant behavior. The simulator may also consist of at least one processor with at least one low bandwidth model of at least a second plant behavior.
摘要翻译： 提供了用于模拟设备的系统的方法和系统的实施例。 根据本发明的一个示例性实施例，公开了一种用于模拟植物的系统。 该系统可以包括控制器，其包括用于向工厂执行控制命令的工厂操作逻辑。 该系统还可以包括与控制器通信的模拟器，其中模拟器可以由具有至少一个至少第一植物行为的至少一个高带宽模型的高带宽硬件组成。 模拟器还可以由具有至少一个具有至少第二植物行为的至少一个低带宽模型的至少一个处理器组成。
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公开(公告)号：US07116166B2
公开(公告)日：2006-10-03
申请号：US10867598
申请日：2004-06-15
申请人： Juan Antonio Sabate , Richard S. Zhang , Luis Jose Garces , Paul Michael Szczesny , Qiming Li , William Frederick Wirth
发明人： Juan Antonio Sabate , Richard S. Zhang , Luis Jose Garces , Paul Michael Szczesny , Qiming Li , William Frederick Wirth
CPC分类号： G01R33/3852 , H03F1/0277 , H03F3/211 , H03F3/2173 , H03F3/2178 , H03F3/72
摘要： A gradient amplifier arrangement is described that comprises a gradient amplifier power stage. The device may be employed to provide a current to a gradient coil, as in a MRI system. The circuitry disclosed includes a series coupling of a first bridge amplifier operating at a first voltage, a second bridge amplifier operating at a second voltage, a third bridge amplifier operating at a third voltage, and a gradient amplifier control stage. The amplifiers may provide output voltages at different levels, and may be switched at different times and frequencies to provide a range of output voltage and current levels.
摘要翻译： 描述了包括梯度放大器功率级的梯度放大器布置。 该装置可用于向梯度线圈提供电流，如在MRI系统中。 所公开的电路包括以第一电压工作的第一桥式放大器，以第二电压工作的第二桥式放大器，以第三电压工作的第三桥式放大器和梯度放大器控制级的串联耦合。 放大器可以提供不同电平的输出电压，并且可以在不同的时间和频率下切换以提供输出电压和电流水平的范围。
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公开(公告)号：US09013904B2
公开(公告)日：2015-04-21
申请号：US13435105
申请日：2012-03-30
申请人： Di Zhang , Luis Jose Garces
发明人： Di Zhang , Luis Jose Garces
CPC分类号： H02M7/493 , H02J1/02 , H02J3/36 , H02J2003/365 , H02M2001/0048 , H02M2001/0077 , Y02B70/1491 , Y02E60/60
摘要： A power transmission system is provided. The power transmission system includes a power source for providing power. The system also includes a power conversion system comprising power converters coupled to receive the power and convert the power to DC power, wherein the power conversion system comprises a plurality of legs each configured for pulse width modulation. The system further includes a controller comprising an analysis module programmed for determining a number of legs for switching for minimizing a cost function based on operating conditions of the power conversion system. The controller also includes a switch control module programmed for using the number of legs determined by the analysis module for generating switching commands for the power conversion system. The system also includes a DC transmission bus coupled to receive the DC power and transmit the DC power.
摘要翻译： 提供电力传输系统。 电力传输系统包括用于提供电力的电源。 该系统还包括电力转换系统，其包括被耦合以接收电力并将功率转换成DC电力的功率转换器，其中所述功率转换系统包括多个腿，每个腿被配置用于脉宽调制。 该系统还包括控制器，该控制器包括分析模块，该分析模块被编程为基于功率转换系统的操作条件来确定用于切换的多个支路以最小化成本功能。 该控制器还包括开关控制模块，该开关控制模块被编程用于使用由分析模块确定的腿数来产生用于功率转换系统的切换命令。 该系统还包括耦合以接收DC电力并传输DC电力的DC传输总线。
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公开(公告)号：US20130258733A1
公开(公告)日：2013-10-03
申请号：US13435105
申请日：2012-03-30
申请人： Di Zhang , Luis Jose Garces
发明人： Di Zhang , Luis Jose Garces
IPC分类号： H02M7/217
CPC分类号： H02M7/493 , H02J1/02 , H02J3/36 , H02J2003/365 , H02M2001/0048 , H02M2001/0077 , Y02B70/1491 , Y02E60/60
摘要： A power transmission system is provided. The power transmission system includes a power source for providing power. The system also includes a power conversion system comprising power converters coupled to receive the power and convert the power to DC power, wherein the power conversion system comprises a plurality of legs each configured for pulse width modulation. The system further includes a controller comprising an analysis module programmed for determining a number of legs for switching for minimizing a cost function based on operating conditions of the power conversion system. The controller also includes a switch control module programmed for using the number of legs determined by the analysis module for generating switching commands for the power conversion system. The system also includes a DC transmission bus coupled to receive the DC power and transmit the DC power.
摘要翻译： 提供电力传输系统。 电力传输系统包括用于提供电力的电源。 该系统还包括电力转换系统，其包括被耦合以接收电力并将功率转换成DC电力的功率转换器，其中所述功率转换系统包括多个腿，每个腿被配置用于脉宽调制。 该系统还包括控制器，该控制器包括分析模块，该分析模块被编程为基于功率转换系统的操作条件来确定用于切换的多个支路以最小化成本功能。 该控制器还包括开关控制模块，该开关控制模块被编程用于使用由分析模块确定的腿数来产生用于功率转换系统的切换命令。 该系统还包括耦合以接收DC电力并传输DC电力的DC传输总线。
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公开(公告)号：US08138694B2
公开(公告)日：2012-03-20
申请号：US11949963
申请日：2007-12-04
IPC分类号： H02P1/00
CPC分类号： H02M3/1582
摘要： A bidirectional buck-boost power converter 13 including a pair of inverter modules 14, 15 disposed at an output of a machine, and an inductor Lo connected between the pair of inverter modules 14, 15. A method for controlling a voltage output of a machine starter generator having an inverter rectifier and bidirectional buck-boost converter, includes outputting a dc voltage controlled by bidirectional buck-boost pulse width modulation (PWM) switching control, when the starter generator is in a generator mode.
摘要翻译： 包括设置在机器的输出端的一对逆变器模块14,15和连接在该对逆变器模块14,15之间的电感器Lo的双向降压 - 升压功率转换器13.一种用于控制机器的电压输出的方法 具有逆变器整流器和双向降压 - 升压转换器的起动发电机包括当起动器发电机处于发电机模式时，输出由双向降压 - 升压脉宽调制（PWM）切换控制控制的直流电压。
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公开(公告)号：US07983799B2
公开(公告)日：2011-07-19
申请号：US11611505
申请日：2006-12-15
IPC分类号： G05D11/00
CPC分类号： H02J3/06 , H02J3/08 , H02J3/382 , H02J3/383 , H02J3/386 , Y02E10/563 , Y02E10/763 , Y02P80/14
摘要： A system for controlling a microgrid includes microgrid assets and a tieline for coupling the microgrid to a bulk grid; and a tieline controller coupled to the tieline. At least one of the microgrid assets comprises a different type of asset than another one of the microgrid assets. The tieline controller is configured for providing tieline control signals to adjust active and reactive power in respective microgrid assets in response to commands from the bulk grid operating entity, microgrid system conditions, bulk grid conditions, or combinations thereof.
摘要翻译： 用于控制微电网的系统包括微电网资产和用于将微电网耦合到散装电网的线路; 和tieline控制器耦合到tieline。 至少有一个微电网资产包括与另一个微电网资产不同的资产类型。 电梯控制器被配置为响应于来自批量电网运行实体，微电网系统条件，批量电网条件或其组合的命令，提供tieline控制信号来调整相应微电网资产中的有功功率和无功功率。
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