Gate drive circuit and method of operating same
    131.
    发明授权
    Gate drive circuit and method of operating same 有权
    栅极驱动电路及其操作方法

    公开(公告)号:US09496864B2

    公开(公告)日:2016-11-15

    申请号:US14574548

    申请日:2014-12-18

    Abstract: A gate drive circuit for applying a voltage to a gate of a semiconductor switching device is disclosed. The gate drive circuit includes a gate drive controller that provides voltage commands for operating the semiconductor switching device, a plurality of primary gate resistors coupled between the gate drive controller and the semiconductor switching device, one or more secondary gate resistors connected in parallel with the primary gate resistors, a primary transistor connected in series with each of the primary gate resistors, and a secondary transistor connected in series with each of the secondary gate resistors. Further, one of the primary or secondary transistors receives the one or more voltage commands from the gate drive controller and provides one or more corresponding voltage levels to the semiconductor switching device via one of the primary or secondary gate resistors so as to control the on-off behavior of the semiconductor switching device.

    Abstract translation: 公开了一种用于向半导体开关器件的栅极施加电压的栅极驱动电路。 栅极驱动电路包括栅极驱动控制器,其提供用于操作半导体开关器件的电压命令,耦合在栅极驱动控制器和半导体开关器件之间的多个初级栅极电阻器,与主要器件并联连接的一个或多个次级栅极电阻器 栅极电阻器,与每个主栅极电阻器串联连接的主晶体管,以及与每个次级栅极电阻器串联连接的次级晶体管。 此外,主晶体管或次晶体管中的一个晶体管从栅极驱动控制器接收一个或多个电压指令,并且经由主栅极电阻器或次级栅极电阻器之一向半导体开关器件提供一个或多个相应的电压电平, 关闭半导体开关器件的行为。

    Power converter with a multi-level bridge topology and control method
    132.
    发明授权
    Power converter with a multi-level bridge topology and control method 有权
    电力转换器采用多级桥接拓扑和控制方式

    公开(公告)号:US09450503B2

    公开(公告)日:2016-09-20

    申请号:US13967437

    申请日:2013-08-15

    Abstract: The present subject matter is directed to apparatus and methods for producing a variable frequency output waveform from a power converter for use in a power generation system, such as a wind turbine power generation system. A voltage divider is employed to provide plural voltage levels to which a multi-level bridge circuit employing selectively activated switches in pairs of switches is coupled. The switches are operated in such a fashion as to produce a generally sinusoidal waveform that may be easily filtered by low cost filters due to the plural voltage levels to produce a generally smooth sine wave from the converter. Such converters may be used in various environments including in pairs in multi-phase power converters.

    Abstract translation: 本发明涉及从用于诸如风力发电系统的发电系统中使用的功率转换器产生可变频率输出波形的装置和方法。 使用分压器来提供多个电压电平,其中使用成对的开关中的选择性激活的开关的多电平电桥电路耦合到该电平。 这些开关的操作方式是产生大致正弦的波形,由于多个电压电平可以从转换器产生大致平滑的正弦波,所以能够被低成本滤波器容易地滤波。 这种转换器可以在包括多相电力转换器中的成对的各种环境中使用。

    High performance IGBT gate drive
    133.
    发明授权
    High performance IGBT gate drive 有权
    高性能IGBT门极驱动

    公开(公告)号:US09444448B2

    公开(公告)日:2016-09-13

    申请号:US14101579

    申请日:2013-12-10

    CPC classification number: H03K17/567 H02M1/08 H03K17/0412 H03K17/168

    Abstract: High performance gate drives and methods for driving semiconductor switching elements, such as insulated gate bipolar transistors (IGBTs), are provided. The gate drive can control the voltage applied to the gate of the IGBT to one or more intermediate voltages near the threshold voltage of the IGBT to control dv/dt of the collector-emitter voltage during and the di/dt of the collector current turn off. For instance, a voltage level between the turn on voltage and the turn off voltage can be applied for a first time period to control dv/dt of the collector-emitter voltage and di/dt of the collector current during turn off. Another voltage level between the turn on voltage and the turn off voltage can be applied for a second time period during reverse recovery of a freewheeling diode coupled in parallel with the IGBT.

    Abstract translation: 提供了高性能栅极驱动器和用于驱动半导体开关元件的方法,例如绝缘栅双极晶体管(IGBT)。 栅极驱动器可以将施加到IGBT的栅极的电压控制在IGBT阈值电压附近的一个或多个中间电压,以控制集电极 - 发射极电压的dv / dt,并且集电极电流的di / dt关闭 。 例如,可以在第一时间段内施加导通电压和关断电压之间的电压电平,以控制关断期间集电极 - 发射极电压的dv / dt和集电极电流的di / dt。 在与IGBT并联耦合的续流二极管的反向恢复期间,可以在第二时间段内施加导通电压和关断电压之间的另一个电压电平。

    Control scheme for current balancing between parallel bridge circuits
    135.
    发明授权
    Control scheme for current balancing between parallel bridge circuits 有权
    并联电路之间电流平衡的控制方案

    公开(公告)号:US09281761B2

    公开(公告)日:2016-03-08

    申请号:US13744948

    申请日:2013-01-18

    Abstract: A control scheme for reducing current imbalance between parallel bridge circuits in a power converter system is provided. The power converter can include a plurality of bridge circuits coupled in parallel to increase the output power capability of the power system. The parallel bridge circuits can be controlled pursuant to a control scheme for reducing current imbalance between the parallel bridge circuits. In particular, a pulse test can be performed in which a pulse is applied to each of the plurality of bridge circuits. The switch timing of the switching elements responsive to the pulse can be measured and analyzed to determine a timing difference adjustment for one or more of the switching elements of the plurality of bridge circuits. The timing difference adjustment can be stored and used to adjust all subsequent switching events in the parallel bridge circuits.

    Abstract translation: 提供了一种用于减小功率转换器系统中的并联桥接电路之间的电流不平衡的控制方案。 功率转换器可以包括并联耦合的多个桥式电路,以增加电力系统的输出功率能力。 可以根据用于减小并联桥电路之间的电流不平衡的控制方案来控制并联桥电路。 特别地,可以执行脉冲测试,其中脉冲被施加到多个桥接电路中的每一个。 可以测量和分析响应于脉冲的开关元件的开关定时,以确定多个桥式电路中的一个或多个开关元件的定时差调整。 可以存储和使用定时差调整来调整并联桥电路中的所有后续切换事件。

    System and method for operating a power generation system within a power storage/discharge mode or a dynamic brake mode
    136.
    发明授权
    System and method for operating a power generation system within a power storage/discharge mode or a dynamic brake mode 有权
    在蓄电/放电模式或动态制动模式下操作发电系统的系统和方法

    公开(公告)号:US09231509B2

    公开(公告)日:2016-01-05

    申请号:US14088730

    申请日:2013-11-25

    Abstract: In one aspect, a system for operating a power generation system within a battery storage/discharge mode or a dynamic brake mode may generally include a power convertor having a DC link, a switching module coupled to the DC link and a selector switch configured to selectively couple the switching module to one of a storage device or a resistive element of the power generation system. The selector switch may be movable between a first position, wherein the switching module is coupled to the storage device such that power is capable of being directed between the DC link and the storage device via control of the switching module, and a second position, wherein the switching module is coupled to the resistive element such that power is capable of being directed between the DC link and the resistive element via control of the switching module.

    Abstract translation: 一方面,用于在电池存储/放电模式或动态制动模式下操作发电系统的系统通常可以包括具有DC链路的功率转换器,耦合到DC链路的开关模块和被配置为选择性地 将开关模块耦合到发电系统的存储装置或电阻元件之一。 选择器开关可以在第一位置和第二位置之间移动,第一位置和第二位置之间,其中开关模块耦合到存储装置,使得能够通过开关模块的控制将功率定向在DC链路和存储装置之间,其中 开关模块耦合到电阻元件,使得能够通过开关模块的控制将功率定向在DC链路和电阻元件之间。

    ENERGY STORAGE SYSTEM FOR RENEWABLE ENERGY SOURCE
    137.
    发明申请
    ENERGY STORAGE SYSTEM FOR RENEWABLE ENERGY SOURCE 有权
    能源储存系统可再生能源

    公开(公告)号:US20150295398A1

    公开(公告)日:2015-10-15

    申请号:US14253095

    申请日:2014-04-15

    Abstract: Renewable energy power systems, DC to DC converters, and methods for operating energy storage systems are provided. A system includes a power converter having a DC bus, and an energy storage system coupled to the DC bus of the power converter. The energy storage system includes an energy storage device and a switching power supply coupled between the energy storage device and the DC bus of the power converter. The switching power supply includes a plurality of switching elements, and an energy storage device protection circuit coupled between the plurality of switching elements and the energy storage device, the energy storage device protection circuit including a solid state switch. The switching power supply further includes a fuse coupled to the energy storage device protection circuit.

    Abstract translation: 提供了可再生能源电力系统,直流到直流转换器和操作储能系统的方法。 一种系统包括具有DC总线的功率转换器和耦合到功率转换器的DC总线的能量存储系统。 能量存储系统包括耦合在能量存储装置和功率转换器的DC总线之间的能量存储装置和开关电源。 开关电源包括多个开关元件,以及耦合在所述多个开关元件和所述能量存储装置之间的能量存储装置保护电路,所述能量存储装置保护电路包括固态开关。 开关电源还包括耦合到能量存储装置保护电路的熔丝。

    Neutral point clamped converter control system and control method and compensation unit
    138.
    发明授权
    Neutral point clamped converter control system and control method and compensation unit 有权
    中性点钳位转换器控制系统及控制方法及补偿单元

    公开(公告)号:US09083261B2

    公开(公告)日:2015-07-14

    申请号:US13682996

    申请日:2012-11-21

    CPC classification number: H02M5/458 H02M7/487

    Abstract: A control system includes a fundamental control unit, first and second compensation control units, a switch control unit, and a switch implementation unit. The fundamental control unit generates fundamental commands to implement fundamental power conversion operation for a converter. The first compensation control unit generates a first compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a first state. The second compensation control unit generates a second compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a second state. The switch control unit detects first and second states of the converter and provides first and second switch signals respectively. The switch implementation unit switches the fundamental control unit to communicate with the first and second compensation control units according to the first and second switch signals respectively.

    Abstract translation: 控制系统包括基本控制单元,第一和第二补偿控制单元,开关控制单元和开关实施单元。 基本控制单元产生用于实现转换器的基本功率转换操作的基本命令。 第一补偿控制单元在转换器在第一状态下运行时产生用于注入基本命令的第一补偿信号以平衡中性点电压。 第二补偿控制单元在转换器在第二状态下运行时产生用于注入基本命令的第二补偿信号以平衡中性点电压。 开关控制单元检测转换器的第一和第二状态,分别提供第一和第二开关信号。 开关实施单元切换基本控制单元,以分别根据第一和第二开关信号与第一和第二补偿控制单元通信。

    SYSTEM AND METHOD FOR OPERATING A POWER GENERATION SYSTEM WITHIN A POWER STORAGE/DISCHARGE MODE OR A DYNAMIC BRAKE MODE
    139.
    发明申请
    SYSTEM AND METHOD FOR OPERATING A POWER GENERATION SYSTEM WITHIN A POWER STORAGE/DISCHARGE MODE OR A DYNAMIC BRAKE MODE 有权
    在蓄能/放电模式或动态制动模式下操作发电系统的系统和方法

    公开(公告)号:US20150145251A1

    公开(公告)日:2015-05-28

    申请号:US14088730

    申请日:2013-11-25

    Abstract: In one aspect, a system for operating a power generation system within a battery storage/discharge mode or a dynamic brake mode may generally include a power convertor having a DC link, a switching module coupled to the DC link and a selector switch configured to selectively couple the switching module to one of a storage device or a resistive element of the power generation system. The selector switch may be movable between a first position, wherein the switching module is coupled to the storage device such that power is capable of being directed between the DC link and the storage device via control of the switching module, and a second position, wherein the switching module is coupled to the resistive element such that power is capable of being directed between the DC link and the resistive element via control of the switching module.

    Abstract translation: 一方面,用于在电池存储/放电模式或动态制动模式下操作发电系统的系统通常可以包括具有DC链路的功率转换器,耦合到DC链路的开关模块和被配置为选择性地 将开关模块耦合到发电系统的存储装置或电阻元件之一。 选择器开关可以在第一位置和第二位置之间移动,第一位置和第二位置之间,其中开关模块耦合到存储装置,使得能够通过开关模块的控制将功率定向在DC链路和存储装置之间,其中 开关模块耦合到电阻元件,使得能够通过开关模块的控制将功率定向在DC链路和电阻元件之间。

    MAGNETIC STRUCTURE COMBINING NORMAL MODE AND COMMON MODE INDUCTANCE
    140.
    发明申请
    MAGNETIC STRUCTURE COMBINING NORMAL MODE AND COMMON MODE INDUCTANCE 审中-公开
    磁性结构组合正常模式和共模电感

    公开(公告)号:US20150123402A1

    公开(公告)日:2015-05-07

    申请号:US14070783

    申请日:2013-11-04

    Abstract: Magnetic components that can be used to provide normal mode and common mode inductance in a power system, such as a wind-driven doubly fed induction generator system, are provided. The magnetic components can include a structure that combines both normal mode inductors and common mode inductors on a common core. In particular, the magnetic components can include specific winding and core arrangements which couple a common mode inductor and a normal mode inductor onto a single core with at least three legs. The structure of the magnetic components can be smaller in size, can have lower weight, and can have a lower cost than typical solutions to providing common mode and normal mode inductance in a power system.

    Abstract translation: 提供了可用于在诸如风力驱动双馈感应发电机系统的电力系统中提供正常模式和共模电感的磁性部件。 磁性部件可以包括将普通模式电感器和共模电感器组合在公共芯上的结构。 特别地,磁性部件可以包括将共模电感器和普通模式电感器耦合到具有至少三个支腿的单个芯上的特定的绕组和芯布置。 磁性部件的结构尺寸可以更小,可以具有更低的重量,并且可以具有比在电力系统中提供共模和正常模式电感的典型解决方案更低的成本。

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