公开(公告)号：US06900643B2

公开(公告)日：2005-05-31

申请号：US10637754

申请日：2003-08-06

申请人： Duo Deng ,  Kerry E. Grand ,  Steven J. Kowalec

发明人： Duo Deng ,  Kerry E. Grand ,  Steven J. Kowalec

IPC分类号： G01R31/02 ,  G01R31/08 ,  G01R31/42 ,  H02M3/00

CPC分类号： G01R31/025 ,  G01R31/42

摘要： A system including a current sensor to sense a current provided by an electronic power converter, the current sensor includes an output; an overcurrent detection circuit with an input coupled to an output of the current sensor; and a logic control circuit configurable to maintain the current provided by the electronic power converter in response to the sensed current having a short circuit magnitude, the logic control circuit including an input coupled to an output of the overcurrent detection circuit and at least one output coupled to at least one switch of the electronic power converter.

摘要翻译： 一种包括用于感测由电子功率转换器提供的电流的电流传感器的系统，所述电流传感器包括输出; 具有耦合到电流传感器的输出的输入的过电流检测电路; 以及逻辑控制电路，可配置为响应于具有短路幅度的感测电流来维持由电子功率转换器提供的电流，逻辑控制电路包括耦合到过电流检测电路的输出的输入和耦合到 至少一个电子功率转换器的开关。

公开(公告)号：US07158395B2

公开(公告)日：2007-01-02

申请号：US10836631

申请日：2004-04-30

申请人： Duo Deng ,  Anil Tuladhar ,  Kenneth J. Farkas ,  Kerry E. Grand

发明人： Duo Deng ,  Anil Tuladhar ,  Kenneth J. Farkas ,  Kerry E. Grand

IPC分类号： H02M7/44

CPC分类号： G05F1/67 ,  Y02E10/58

摘要： A power system employs an outer voltage feedback loop and an inner current feedback loop to control a power converter, such as a DC to AC inverter for transferring electrical power between a power source, for example a photovoltaic array, and a load, for example a power grid. The outer loop accommodates variations in the output of the power source, for example accommodating anomalies in IV characteristics such as IV droop characteristic associated with photovoltaic cells. The outer loop may employ a first control regime or a second control regime, for example, dependent on whether a DC bus voltage or power is smaller than a value corresponding to measurement resolution or expected noise.

摘要翻译： 电力系统采用外部电压反馈环路和内部电流反馈环路来控制功率转换器，例如用于在电源（例如光伏阵列）和负载之间传送电力的DC至AC逆变器，例如 电网。 外部回路适应电源输出的变化，例如适应诸如与光伏电池相关联的IV下降特性的IV特性中的异常。 外环可以采用例如取决于DC总线电压或功率是否小于对应于测量分辨率或预期噪声的值的第一控制状态或第二控制状态。

公开(公告)号：US20080165555A1

公开(公告)日：2008-07-10

申请号：US12053783

申请日：2008-03-24

申请人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

发明人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

IPC分类号： H02M5/42

CPC分类号： H02M5/458 ,  H02J9/062 ,  Y10T307/735 ,  Y10T307/852

摘要： Cycle error correction is performed in an electronic power system to compensate for a difference between an AC grid side frequency and an AC load side frequency. The electronic power system can comprise an electronic power inverter, such as one usable with an uninterruptible power supply. Cycles of signals indicative of the AC grid power and the AC load power are counted and compared to obtain a cycle error value. If the cycle error value exceeds a first value to indicate that AC load side frequency is too high or too low, then compensation is performed to change the AC load side frequency to be closer to the AC grid side frequency. If the cycle error value falls below a second value to indicate that the AC grid side frequency and AC load side frequency are sufficiently close to one another, then the compensation is deactivated.

摘要翻译： 在电子电力系统中执行周期误差校正，以补偿AC电网侧频率和AC负载侧频率之间的差异。 电子电力系统可以包括诸如可用于不间断电源的电子功率逆变器。 对表示交流电网功率和交流负载功率的信号周期进行计数和比较，以获得周期误差值。 如果循环误差值超过第一个值以指示交流负载侧频率太高或过低，则执行补偿以将交流负载侧频率更改为更接近交流电网侧频率。 如果循环误差值低于第二值，以表示交流电网侧频率和交流负载侧频率彼此充分接近，则不使能补偿。

公开(公告)号：US07362600B2

公开(公告)日：2008-04-22

申请号：US10956736

申请日：2004-10-01

申请人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

发明人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

IPC分类号： H02M3/24 ,  H02M7/537 ,  H02J1/00

CPC分类号： H02M5/458 ,  H02J9/062 ,  Y10T307/735 ,  Y10T307/852

摘要： Cycle error correction is performed in an electronic power system to compensate for a difference between an AC grid side frequency and an AC load side frequency. The electronic power system includes an electronic power inverter, such as one usable with an uninterruptible power supply. Cycles of signals indicative of the AC grid power and the AC load power are counted and compared to obtain a cycle error value. If the cycle error value exceeds a first value to indicate that AC load side frequency is too high or too low, then compensation is performed to change the AC load side frequency to be closer to the AC grid side frequency. If the cycle error value falls below a second value to indicate that the AC grid side frequency and AC load side frequency are sufficiently close to one another, then the compensation is deactivated.

摘要翻译： 在电子电力系统中执行周期误差校正，以补偿AC电网侧频率和AC负载侧频率之间的差异。 电子电力系统包括可用于不间断电源的电子功率逆变器。 对表示交流电网功率和交流负载功率的信号周期进行计数和比较，以获得周期误差值。 如果循环误差值超过第一个值以指示交流负载侧频率太高或过低，则执行补偿以将交流负载侧频率更改为更接近交流电网侧频率。 如果循环误差值低于第二值，以表示交流电网侧频率和交流负载侧频率彼此充分接近，则不使能补偿。

公开(公告)号：US07545659B2

公开(公告)日：2009-06-09

申请号：US12053783

申请日：2008-03-24

申请人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

发明人： Duo Deng ,  Kenneth J. Farkas ,  Anil Tuladhar ,  Kerry E. Grand

IPC分类号： H02J9/04

CPC分类号： H02M5/458 ,  H02J9/062 ,  Y10T307/735 ,  Y10T307/852

摘要： Cycle error correction is performed in an electronic power system to compensate for a difference between an AC grid side frequency and an AC load side frequency. The electronic power system can comprise an electronic power inverter, such as one usable with an uninterruptible power supply. Cycles of signals indicative of the AC grid power and the AC load power are counted and compared to obtain a cycle error value. If the cycle error value exceeds a first value to indicate that AC load side frequency is too high or too low, then compensation is performed to change the AC load side frequency to be closer to the AC grid side frequency. If the cycle error value falls below a second value to indicate that the AC grid side frequency and AC load side frequency are sufficiently close to one another, then the compensation is deactivated.

摘要翻译： 在电子电力系统中执行周期误差校正，以补偿AC电网侧频率和AC负载侧频率之间的差异。 电子电力系统可以包括诸如可用于不间断电源的电子功率逆变器。 对表示交流电网功率和交流负载功率的信号周期进行计数和比较，以获得周期误差值。 如果循环误差值超过第一个值以指示交流负载侧频率太高或过低，则执行补偿以将交流负载侧频率更改为更接近交流电网侧频率。 如果循环误差值低于第二值，以表示交流电网侧频率和交流负载侧频率彼此充分接近，则不使能补偿。

公开(公告)号：US20060072263A1

公开(公告)日：2006-04-06

申请号：US10956736

申请日：2004-10-01

申请人： Duo Deng ,  Kenneth Farkas ,  Anil Tuladhar ,  Kerry Grand

发明人： Duo Deng ,  Kenneth Farkas ,  Anil Tuladhar ,  Kerry Grand

IPC分类号： H02H3/00

CPC分类号： H02M5/458 ,  H02J9/062 ,  Y10T307/735 ,  Y10T307/852

摘要： Cycle error correction is performed in an electronic power system to compensate for a difference between an AC grid side frequency and an AC load side frequency. The electronic power system can comprise an electronic power inverter, such as one usable with an uninterruptible power supply. Cycles of signals indicative of the AC grid power and the AC load power are counted and compared to obtain a cycle error value. If the cycle error value exceeds a first value to indicate that AC load side frequency is too high or too low, then compensation is performed to change the AC load side frequency to be closer to the AC grid side frequency. If the cycle error value falls below a second value to indicate that the AC grid side frequency and AC load side frequency are sufficiently close to one another, then the compensation is deactivated.

公开(公告)号：US20050105306A1

公开(公告)日：2005-05-19

申请号：US10713767

申请日：2003-11-14

申请人： Duo Deng ,  Vijay Bhavaraju

发明人： Duo Deng ,  Vijay Bhavaraju

IPC分类号： H02J3/38 ,  H02M5/458 ,  H02M7/797 ,  H02M5/45

CPC分类号： H02J3/383 ,  H02J3/387 ,  H02M5/4585 ,  H02M7/797 ,  Y02B10/14 ,  Y02E10/563

摘要： A power converter system advantageously employs a modular, bi-directionally symmetrical power converter assembly in a readily customizable configuration to interconnect a direct current power source to a three-phase alternating power grid. Connections external to the power converter assembly are selected to optimize the power converter system for a specific application, such as interconnecting a photovoltaic array to the three-phase electrical power grid. The electrical interconnections of various elements including isolation transformers, voltage sensors, and control switches are optimized to improve efficiency and reliability.

摘要翻译： 功率转换器系统有利地采用模块化的双向对称功率转换器组件，其易于定制的配置将直流电源互连到三相交流电网。 选择电力转换器组件外部的连接以优化用于特定应用的功率转换器系统，例如将光伏阵列互连到三相电力电网。 优化了包括隔离变压器，电压传感器和控制开关在内的各种元件的电气互连，以提高效率和可靠性。

公开(公告)号：US06845020B2

公开(公告)日：2005-01-18

申请号：US10453920

申请日：2003-06-02

申请人： Duo Deng ,  Dumitru D. Raceu ,  Kent M. Harmon

发明人： Duo Deng ,  Dumitru D. Raceu ,  Kent M. Harmon

IPC分类号： H02J7/34 ,  H02J9/06 ,  H02M5/458 ,  H02M5/45

CPC分类号： H02J9/062 ,  H02J7/345 ,  H02M5/4585 ,  Y02B10/72 ,  Y02B90/14 ,  Y02E10/566

摘要： A power conversion system which comprises a controller and conversion assemblies which selectively rectify and invert an electrical signal. Conversion assemblies comprise a plurality of integrated gate bipolar transistor assemblies. The power conversion system is effective to convert DC current to AC current, to convert AC current to DC current, and to control the output frequency of a received electrical signal to a conventional operating range.

摘要翻译： 一种电力转换系统，其包括控制器和转换组件，其选择性地校正和反转电信号。 转换组件包括多个集成门双极晶体管组件。 电力转换系统有效地将直流电流转换为交流电流，将交流电流转换为直流电流，并将接收到的电信号的输出频率控制到常规工作范围。

公开(公告)号：US07177165B2

公开(公告)日：2007-02-13

申请号：US10872970

申请日：2004-06-21

申请人： Duo Deng ,  Kon-King M. Wang

发明人： Duo Deng ,  Kon-King M. Wang

IPC分类号： H02M7/44

CPC分类号： H02M7/53875

摘要： Independent phase output voltage control for a 3-phase 4-wire DC/AC inverter, for example, is provided. With the independent phase output voltage control, all three phase output voltages from the DC/AC inverter can be separately and effectively controlled to provide balanced 3-phase voltages from the DC/AC inverter to an unbalanced load, and/or to provide unbalanced 3-phase voltages from the DC/AC inverter to a balanced or unbalanced load. The independent phase output voltage control method can be applied to an inverter power system, with outputs of N-phase (N+1) wire configurations. Here, N can be any integer number greater than zero.

摘要翻译： 例如，提供了用于三相4线DC / AC逆变器的独立相输出电压控制。 通过独立相输出电压控制，可以分离和有效地控制来自DC / AC逆变器的所有三相输出电压，以提供从DC / AC逆变器到不平衡负载的平衡三相电压，和/或提供不平衡3 从DC / AC逆变器到平衡或不平衡负载的相电压。 独立相输出电压控制方法可应用于具有N相（N + 1）线配置输出的逆变电源系统。 这里，N可以是大于零的任何整数。

公开(公告)号：US20070012492A1

公开(公告)日：2007-01-18

申请号：US11472486

申请日：2006-06-20

申请人： Duo Deng ,  Kent Harmon ,  John Franklin

发明人： Duo Deng ,  Kent Harmon ,  John Franklin

IPC分类号： B60K1/00

CPC分类号： B60W20/10 ,  B60K6/26 ,  B60K6/48 ,  B60K6/547 ,  B60L11/005 ,  B60L11/08 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1809 ,  B60L2210/20 ,  B60L2260/165 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W2710/0644 ,  Y02T10/6217 ,  Y02T10/6221 ,  Y02T10/6286 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T10/725 ,  Y02T10/92 ,  Y02T90/127 ,  Y02T90/14 ,  Y10S903/93

摘要： A switch/power conditioning module may be added to a hybrid vehicle to selectively supply power from an AC power bus to a load, providing on-vehicle standby power generating capability with a minimum of added hardware and/or when the vehicle is stationary.

摘要翻译： 可以向混合动力车辆添加开关/功率调节模块以选择性地将电力从AC电力总线提供给负载，以最小的附加硬件和/或当车辆静止时提供车载备用发电能力。