公开(公告)号：US20160208709A1

公开(公告)日：2016-07-21

申请号：US14915066

申请日：2013-09-06

Applicant: GE Aviation Systems LLC

Inventor： Hao HUANG

IPC: F02C7/26 ,  H02M7/68

CPC classification number: F02C7/26 ,  F02C7/268 ,  F02N11/006 ,  F02N11/04 ,  F02N11/08 ,  F02N11/087 ,  F02N2011/0896 ,  H02M7/68 ,  H02P9/08 ,  H02P2101/30 ,  Y02T50/671

Abstract: A method of starting an aircraft having at least a first starter/generator (S/G) and a second S/G using at least one inverter/converter and at least one of an AC power source and a first DC power source, the method includes selectively starting at least one of the first S/G or second S/G in an AC start mode and in a DC start mode.

Abstract translation: 一种使用至少一个逆变器/转换器和至少一个AC电源和第一DC电源起动具有至少第一起动/发电机（S / G）和第二S / G的飞行器的方法，该方法 包括以交流启动模式和直流启动模式选择性地启动第一S / G或第二S / G中的至少一个。

公开(公告)号：US09362848B2

公开(公告)日：2016-06-07

申请号：US14359088

申请日：2011-11-17

Applicant: David Reginald Trainer

Inventor： David Reginald Trainer

IPC: H02M7/49 ,  H02M7/483 ,  H02M7/68 ,  H02M7/5388 ,  H02M7/797 ,  H02J3/36

CPC classification number: H02M7/68 ,  H02J3/36 ,  H02M3/335 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5388 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A power electronic converter, for connecting AC and DC networks and transferring power therebetween, comprises: first and second DC terminals for connection in use to a DC network; at least one primary converter limb extending between the first and second DC terminals and having first and second primary limb portions separated by a primary AC terminal for connection in use to a respective phase of a multi-phase AC network, at least one of the first and second primary limb portions including at least one primary active switching module to selectively allow current to flow through the corresponding primary converter limb in a first direction from the corresponding primary AC terminal to the DC terminals and in a second direction from the DC terminals to the corresponding primary AC terminal; and at least one secondary converter limb extending between the first and second DC terminals and having first and second secondary limb portions separated by a secondary AC terminal for connection in use to a further respective phase of the said multi-phase AC network, each of the first and second secondary limb portions including at least one passive current check element to limit current flow through the corresponding secondary converter limb to a single direction from the corresponding secondary AC terminal to the DC terminals.

Abstract translation: 一种用于连接AC和DC网络并在其间传递电力的电力电子转换器包括：用于连接到DC网络的第一和第二DC终端; 至少一个主转换器分支，其在所述第一和第二DC终端之间延伸并且具有由主AC终端隔开的第一和第二主分支部分，用于连接到多相AC网络的相应相位，所述第一和第二主分支部分中的至少一个 以及第二主要肢体部分，其包括至少一个主要有源切换模块，用于选择性地允许电流沿着第一方向从相应的主AC端子到DC端子以及从DC端子到第二方向的第二方向流过对应的主转换器臂 相应的主交流电源; 以及至少一个次级转换器分支，其在所述第一和第二DC终端之间延伸并且具有被辅助AC端子分隔开的第一和第二辅助分支部分，用于连接到所述多相AC网络的另外的相位， 第一和第二副肢部分包括至少一个无源电流检查元件，以将来自相应次级转换器支路的电流限制到从相应的次级AC端子到DC端子的单个方向。

公开(公告)号：US20160156344A1

公开(公告)日：2016-06-02

申请号：US14898098

申请日：2014-06-10

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Colin Charnock Davidson

IPC: H03K17/16 ,  H03K17/687 ,  H02M7/68 ,  H03K17/66

CPC classification number: H03K17/161 ,  H02M5/45 ,  H02M5/458 ,  H02M7/68 ,  H03K17/08144 ,  H03K17/105 ,  H03K17/16 ,  H03K17/66 ,  H03K17/687

Abstract: A semiconductor switching circuit includes a main current branch which includes at least one main semiconductor switching element and through which current flows in a first direction when the or each main semiconductor switching element is switched on. The semiconductor switching circuit also includes an auxiliary current branch that is connected in parallel with the main current branch. The auxiliary current branch includes at least one auxiliary semiconductor switching element. One or more control units are configured to switch on the or each auxiliary semiconductor switching element as the or each main semiconductor switching element is switched on to selectively create an alternative current path via the auxiliary current branch whereby current flowing in the first direction through the main current branch is diverted instead to flow through the alternative current path to reduce the rate of change of current flowing through the or each main semiconductor switching element.

Abstract translation: 半导体开关电路包括主电流分支，其包括至少一个主半导体开关元件，并且当主半导体开关元件或每个主半导体开关元件接通时，电流在第一方向上流动。 半导体开关电路还包括与主电流分支并联连接的辅助电流分支。 辅助电流分支包括至少一个辅助半导体开关元件。 一个或多个控制单元被配置为在该半导体开关元件或每个主半导体开关元件接通时接通该辅助半导体开关元件或每个辅助半导体开关元件，以便经由辅助电流分支选择性地产生替代电流路径，从而沿第一方向流过主电流 电流分支被转向以流过替代电流路径以减少流过该主要半导体开关元件或每个主要半导体开关元件的电流的变化率。

公开(公告)号：US20160141916A1

公开(公告)日：2016-05-19

申请号：US14771259

申请日：2014-02-28

Applicant: NEC CORPORATION

Inventor： Toshiya OKABE

IPC: H02J9/06 ,  H02J7/00 ,  H02M7/68

CPC classification number: H02J9/061 ,  H02J7/00 ,  H02J7/0068 ,  H02J7/007 ,  H02J7/34 ,  H02M7/68

Abstract: A power system 10 is provided with a power conversion device 110 connected to an input power supply 200, a battery 120 and a load 130 connected in parallel with each other to the output side of the power conversion device 110, and a control device 140 controlling charging/discharging of the battery 120, wherein the control device 140 receives output power of the power conversion device 110, determines, based on the received output power, charge or discharge power of the battery 120 such that the output power becomes close to a first value, and charges or discharges the battery 120 based on the determined charge or discharge power.

Abstract translation: 电力系统10设置有与电力转换装置110的输出侧并联连接的输入电源200，电池120和负载130的电力变换装置110以及控制装置140 电池120的充电/放电，其中控制装置140接收电力转换装置110的输出功率，基于所接收的输出功率，确定电池120的充电或放电功率，使得输出功率变得接近第一 值，并且基于所确定的充电或放电功率对电池120充电或放电。

公开(公告)号：US20160072407A1

公开(公告)日：2016-03-10

申请号：US14888692

申请日：2014-04-03

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： David Reginald TRAINER ,  Kevin J. DYKE ,  Colin OATES

IPC: H02M7/68 ,  H02J5/00 ,  H02J3/36

CPC classification number: H02M7/68 ,  H02J3/36 ,  H02J5/00 ,  H02M1/083 ,  H02M1/12 ,  H02M1/38 ,  H02M7/219 ,  H02M7/483 ,  H02M2001/0058 ,  H02M2007/4835

Abstract: A voltage source converter includes a converter limb having limb portions separated by an AC terminal and extending between DC terminals, each limb portion including a primary switching element to switch the limb portion into and out of circuit. The converter further includes an auxiliary limb. The primary switching element of each limb portion is switchable to switch the auxiliary limb into and out of circuit with the corresponding limb portion. The converter further includes a control unit to, in one mode, inject a circulation current that flows in one direction in one of the limb portions and minimize a current flowing in the opposite direction in that limb portion. Each primary switching element switches the respective limb portion into or out of circuit following the minimization of the limb portion current by the circulation current.

Abstract translation: 电压源转换器包括具有由AC端子分隔并在DC端子之间延伸的分支部分的转换器臂，每个肢体部分包括用于将肢体部分切换到电路中的主开关元件。 转换器还包括辅助肢体。 每个肢体部分的主要开关元件可切换，以使辅助肢体与相应的肢体部分进入和离开电路。 转换器还包括一个控制单元，以一种模式注入在一个肢体部分中沿一个方向流动的循环电流，并使在该肢体部分中沿相反方向流动的电流最小化。 每个初级开关元件将肢体部分电流的最小化通过循环电流切换到相应的肢体部分进入或离开电路。

公开(公告)号：US09065325B2

公开(公告)日：2015-06-23

申请号：US14154917

申请日：2014-01-14

Applicant: Astec International Limited

Inventor： James Sigamani ,  Yancy Fontanilla Boncato

IPC: H02M7/68 ,  H02M7/06 ,  H02M1/42

CPC classification number: H02M7/06 ,  H02M1/4225 ,  Y02B70/126

Abstract: A control circuit for controlling one or more power switches of a power converter includes a voltage control loop and a current control loop. The control circuit is configured to generate a current reference for the current control loop using the voltage control loop and an AC reference signal. The control circuit is configured to operate in at least a first mode in which a parameter of the voltage control loop is sampled only at every other zero crossing of the AC reference signal and the sampled parameter is used to generate the current reference for the current control loop. The power converter may be an AC-DC converter or a DC-AC converter (i.e., inverter). Alternatively, the voltage control loop may be sampled at every zero crossing of the AC reference signal, and/or more frequently during transient load conditions.

Abstract translation: 用于控制功率转换器的一个或多个功率开关的控制电路包括电压控制回路和电流控制回路。 控制电路被配置为使用电压控制回路和AC参考信号来产生用于电流控制回路的电流基准。 控制电路被配置为在至少第一模式中操作，其中电压控制回路的参数仅在交流参考信号的每隔一个过零点进行采样，并且采样参数用于生成电流控制的电流参考 循环。 功率转换器可以是AC-DC转换器或DC-AC转换器（即逆变器）。 或者，电压控制回路可以在交流参考信号的每过零点处进行采样，和/或在瞬态负载条件期间更频繁地进行采样。

公开(公告)号：US09042137B2

公开(公告)日：2015-05-26

申请号：US13364001

申请日：2012-02-01

Applicant: Min Ho Heo ,  Tae Hoon Kim ,  Sung Jun Park ,  Doo Young Song ,  Tae Won Lee

Inventor： Min Ho Heo ,  Tae Hoon Kim ,  Sung Jun Park ,  Doo Young Song ,  Tae Won Lee

IPC: H02H7/122 ,  H02M5/42 ,  H02M7/68 ,  H02M7/5387 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M7/483 ,  H02M2001/0074

Abstract: There is provided an even-level inverter, including: a voltage-dividing circuit dividing input DC power into an even number of voltage levels; a plurality of switching devices connected to individual nodes of the voltage-dividing circuit having the even number of voltage levels; and a bidirectional switching device connected to the individual nodes of the voltage-dividing circuit through at least one of the plurality of switching devices and including at least two transistors. According to the present invention, the bidirectional switching device is implemented without a diode to thereby reduce conduction loss caused due to an anti-parallel diode included in the related art bidirectional switching device, and a neutral point of the voltage-dividing circuit is electrically separated from the switching devices to thereby control reactive power.

Abstract translation: 提供了一种均衡电平逆变器，包括：分压电路将输入的直流电力分成偶数个电压电平; 连接到具有偶数个电压电平的分压电路的各个节点的多个开关装置; 以及通过所述多个开关装置中的至少一个连接到所述分压电路的各个节点并且包括至少两个晶体管的双向开关装置。 根据本发明，双向开关器件实现为没有二极管，从而减少由现有技术的双向开关器件中包括的反并联二极管引起的导通损耗，并且分压电路的中性点被电分离 从开关装置控制无功功率。

公开(公告)号：US08542511B2

公开(公告)日：2013-09-24

申请号：US13330222

申请日：2011-12-19

Applicant: Masaaki Ohshima ,  Shuichi Ushiki ,  Jinbin Zhao

Inventor： Masaaki Ohshima ,  Shuichi Ushiki ,  Jinbin Zhao

IPC: H02M7/04 ,  H02M7/68 ,  H02M5/42

CPC classification number: H02M7/217 ,  H02J3/40 ,  H02J3/46 ,  H02M7/1626 ,  H02M7/219 ,  Y10T307/25

Abstract: A single-phase voltage source AC/DC converter according to the present invention generates a second axis voltage command from difference between a DC voltage detection value at a DC terminal and a DC voltage command value and controls a DC voltage by increasing and decreasing active power with the second axis voltage command. For example, the voltage at the DC terminal is increased by decreasing active power when the DC voltage detection value at the DC terminal is lower than the DC voltage command, while the DC voltage detection value at the DC terminal is decreased by increasing the active power when the DC voltage detection value at the DC terminal is higher than the DC voltage command.

Abstract translation: 根据本发明的单相电压源AC / DC转换器根据DC端子的直流电压检测值与直流电压指令值之间的差产生第二轴电压指令，并通过增加和减小有功功率来控制直流电压 与第二轴电压指令。 例如，当DC端子的直流电压检测值低于直流电压指令时，通过降低有功功率来增加直流端子处的电压，同时通过增加有功功率来减小直流端子处的直流电压检测值 当DC端子处的直流电压检测值高于直流电压指令时。

公开(公告)号：US08472220B2

公开(公告)日：2013-06-25

申请号：US13297247

申请日：2011-11-15

Applicant: Paul Garrity ,  Asim Mumtaz

Inventor： Paul Garrity ,  Asim Mumtaz

IPC: H02M7/68

CPC classification number: H02J3/385 ,  H02J3/383 ,  H02M3/285 ,  H02M5/458 ,  H02M7/46 ,  H02M7/4807 ,  Y02E10/563 ,  Y10T307/511

Abstract: We describe a photovoltaic (PV) panel system comprising a PV panel with multiple sub-strings of connected solar cells in combination with a power conditioning unit (microinverter). The power conditioning unit comprises a set of input power converters, one connected to each sub-string, and a common output power conversion stage, to provide power to an ac mains power supply output. Integration of the micro-inverter into the solar PV module in this way provides many advantages, including greater efficiency and reliability. Additionally, embodiments of the invention avoid the need for bypass diodes, a component with a high failure rate in PV panels, providing lower power loss and higher reliability.

Abstract translation: 我们描述了一种光伏（PV）面板系统，其包括具有连接的太阳能电池的多个子串的光伏面板和功率调节单元（微转换器）的组合。 功率调节单元包括一组输入功率转换器，一个连接到每个子串，以及公共输出功率转换级，以向交流主电源输出提供电力。 以这种方式将微逆变器集成到太阳能光伏组件中提供了许多优点，包括更高的效率和可靠性。 此外，本发明的实施例避免了需要旁路二极管，在PV面板中具有高故障率的部件，提供较低的功率损耗和更高的可靠性。

公开(公告)号：US08437157B2

公开(公告)日：2013-05-07

申请号：US13049511

申请日：2011-03-16

Applicant: Felix I. Alexandrov ,  Michael L. Williams

Inventor： Felix I. Alexandrov ,  Michael L. Williams

IPC: G05F1/33 ,  H02M5/42 ,  H02M7/04 ,  H02M7/68

CPC classification number: H02M7/155 ,  H02M2001/0087

Abstract: Power line current fed power supplies producing stable load currents and related methods are described. The power supplies may include a current transformer coupled to an inductive network. In some embodiments, the current transformer operates in saturation mode. In some embodiments, a substantially constant DC current is generated having a magnitude that remains substantially constant despite variations of the magnitude of AC current in the power line.

Abstract translation: 描述产生稳定负载电流的电力线电流馈电电源及相关方法。 电源可以包括耦合到感应网络的电流互感器。 在一些实施例中，电流互感器以饱和模式工作。 在一些实施例中，产生基本上恒定的DC电流，尽管电力线中的交流电流的大小有变化，其幅度保持基本恒定。