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11.发明公开
公开(公告)号：EP2677646A2
公开(公告)日：2013-12-25
申请号：EP13171306.7
申请日：2013-06-10
CPC分类号： H02M1/34 , H02M7/003 , H02M7/483 , H02M7/487 , Y10T29/4902 , Y10T307/707
摘要： A power converter (114) includes a plurality of power conversion modules (152, 154). At least one power conversion module includes a plurality of power conversion devices (S1/S2/S3/S4/D1/D2/D3/D4/D5/D6) defining a three-level bridge (200). A first power conversion module (152, 154) includes four terminals including one of a positive terminal (T1) and a negative terminal (T5), an output terminal (T3/T7), a first neutral terminal (T2/T6), and a second neutral terminal (T4/T8). The first neutral terminal is coupled to a direct current (DC) link (136) and the second neutral terminal is coupled to a second power conversion module (154, 152).
摘要翻译： 电力转换器（114）包括多个电力转换模块（152,154）。 至少一个电力转换模块包括限定三电平桥（200）的多个电力转换装置（S1 / S2 / S3 / S4 / D1 / D2 / D3 / D4 / D5 / D6）。 第一电力转换模块（152,154）包括四个端子，其包括正极端子（T1）和负极端子（T5），输出端子（T3 / T7），第一中性端子（T2 / T6）和 第二中性端子（T4 / T8）。 第一中性端子耦合到直流（DC）连杆（136），而第二中性端子耦合到第二电力转换模块（154,152）。
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公开(公告)号：EP2587612A3
公开(公告)日：2013-07-17
申请号：EP12189378.8
申请日：2012-10-22
IPC分类号： H02J3/38
CPC分类号： H02J3/383 , H02J3/38 , H02M7/537 , Y02E10/563
摘要： A power conversion system (14) for providing power to an electrical grid (22) is described. The system includes a power converter (16) coupled to a direct current (DC) power source (12). The system also includes a contactor (24) coupled to the power converter and the electrical grid and configured to selectively electrically couple the power converter to the electrical grid. The system also includes a system controller (18) communicatively coupled to the power converter and the contactor and configured to close the contactor to electrically couple the power converter to the electrical grid and to activate the power converter when a DC voltage provided has remained higher than a voltage level for a length of time. The system controller is also configured to deactivate the power converter, while the contactor is maintained in the closed position, when an alternating current (AC) power output has remained lower than a power level for a length of time.
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公开(公告)号：EP2587612A2
公开(公告)日：2013-05-01
申请号：EP12189378.8
申请日：2012-10-22
IPC分类号： H02J3/38
CPC分类号： H02J3/383 , H02J3/38 , H02M7/537 , Y02E10/563
摘要： A power conversion system (14) for providing power to an electrical grid (22) is described. The system includes a power converter (16) coupled to a direct current (DC) power source (12). The system also includes a contactor (24) coupled to the power converter and the electrical grid and configured to selectively electrically couple the power converter to the electrical grid. The system also includes a system controller (18) communicatively coupled to the power converter and the contactor and configured to close the contactor to electrically couple the power converter to the electrical grid and to activate the power converter when a DC voltage provided has remained higher than a voltage level for a length of time. The system controller is also configured to deactivate the power converter, while the contactor is maintained in the closed position, when an alternating current (AC) power output has remained lower than a power level for a length of time.
摘要翻译： 描述了用于向电网（22）供电的电力转换系统（14）。 该系统包括耦合到直流（DC）电源（12）的功率转换器（16）。 该系统还包括耦合到功率转换器和电网并且被配置为选择性地将功率转换器电耦合到电网的接触器（24）。 该系统还包括通信地耦合到功率转换器和接触器的系统控制器（18），并且被配置为关闭接触器以将功率转换器电耦合到电网并且当提供的DC电压保持高于 一段时间的电压水平。 当交流（AC）功率输出在一段时间内保持低于功率水平时，系统控制器还被配置为在接触器保持在闭合位置的同时停用功率转换器。
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14.发明公开Method and system to allow for high dc source voltage with lower dc voltage in a two stage power converter 有权一种用于从在一个两级功率转换器具有较低直流电压的直流电源使能的高电压的方法和系统
公开(公告)号：EP2395644A3
公开(公告)日：2013-05-01
申请号：EP11155322.8
申请日：2011-02-22
CPC分类号： H02M7/48 , H02J3/383 , H02M1/36 , H02M3/1584 , H02M2001/007 , Y02E10/563 , Y10S323/906
摘要： A system (200, 300) for supplying AC power (235) from a DC power source, such as a photovoltaic array (210, 310) is disclosed. The system (200, 300) includes a converter (220, 320) and an inverter (230, 330) coupled by a DC link (325). Control methods and systems are provided to maintain the DC source voltage and the DC link voltage below the open-circuit voltage of the DC power source. During steady state conditions, the DC source voltage and the DC link voltage are maintained below the open-circuit voltage of the DC power source by controlling the output of the inverter (230, 330). The DC link voltage is temporarily adjusted to allow for higher DC link (325) transients when the DC power source is first coupled or re-coupled to the system (200, 300). During conditions when the inverter (230, 330) is decoupled from the system (200, 300), the converter (220, 320) is controlled to maintain the DC link voltage below the open-circuit voltage of the DC power source.
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公开(公告)号：EP2128971A3
公开(公告)日：2012-05-30
申请号：EP09158881.4
申请日：2009-04-27
IPC分类号： H02M7/48 , H02P27/08 , H02M7/49 , H02M7/5387
CPC分类号： H02P27/08 , H02M7/49 , H02M7/53873 , H02M2007/53878
摘要： Embodiments of systems and methods for powering a load are provided. In one embodiment, a method may include providing a power converter (100) comprising electrical circuitry comprising at least a first leg and a second leg, supplying an input power signal (920) to the power converter (100), supplying at least a first gating control signal (930) to the first leg, supplying at least a second gating control signal (940) to the second leg, and outputting at least one output power signal to the load (950) responsive at least in part to the first (930) and the second (940) gating control signals supplied. According to this example embodiment, the first gating signal (930) and the second gating signal (940) may each comprise a waveform (410) comprising a notch (350), and the second gating control signal (940) may be phase shifted relative to the first gating control signal (930).
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公开(公告)号：EP2061046A3
公开(公告)日：2012-02-22
申请号：EP08167892.2
申请日：2008-10-30
CPC分类号： H01F37/005 , H01F27/2876 , H01F27/365
摘要： An air core inductor 100 includes an inductor member (124) formed in a plurality of coils (114-120). The inductor member includes a first end portion (134), a second end portion (144) and a hollow core portion (155). The air core inductor also includes at least one stray flux inhibiting member (164) provided on one of the first and second end portions of the inductor member. The stray flux inhibiting member blocks stray magnetic flux emanating from the air core inductor.
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17.发明公开Dual voltage wye-connected h-bridge converter topology for powering a high-speed electric motor 审中-公开双电压转换器拓扑WYE联H桥进行操作的高速电动机
公开(公告)号：EP1998431A2
公开(公告)日：2008-12-03
申请号：EP08156614.3
申请日：2008-05-21
IPC分类号： H02M7/48
CPC分类号： H02M7/5387
摘要： A topology for a three-phase, wye-connected H-bridge converter 100 allowing continued operation when one H-bridge phase 170 has failed by bypassing 196 the failed H-bridge phase 170, increasing dc-bus 135 voltage to provide the required output load voltage, and decreasing switching frequency to reduce power losses in semiconductor switches 140. In normal operation, the dc-bus 135 is operated at a lower voltage, improving the reliability of power semiconductor devices 140. When an H-bridge 170 is bypassed, the dc-bus 135 is operated at a higher voltage but lower effective switching frequency, reducing losses of the power semiconductor devices 140, allowing the converter 100 to put out more current with the same temperature rise in the semiconductor devices 140.
摘要翻译： 一种允许三相星形连接的H桥转换器100拓扑续操作当一个H桥相170未能通过绕过196出现故障的H桥170相增加直流总线135的电压，以提供所需要的输出 负载电压，并降低开关频率，以降低在半导体开关140中的功率损耗在正常操作中，DC-总线135在较低的电压下操作，提高功率半导体器件140。当在H桥旁路170是的可靠性， DC总线135在较高的电压，但较低的有效开关频率下操作时，降低了功率半导体器件140允许转换器100的损失的放出更多的电流与半导体器件第140相同的温度上升
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18.发明公开
公开(公告)号：EP3893383A1
公开(公告)日：2021-10-13
申请号：EP21166398.4
申请日：2021-03-31
IPC分类号： H02P9/00 , H02P29/024
摘要： A method for controlling a power converter of a wind turbine power system connected to an electrical grid. The wind turbine power system has a generator and the power converter has rotor-side converter and a line-side converter. The method includes monitoring an electrical parameter of at least one of the wind turbine power system or the electrical grid. In response to detecting a transient event in the electrical grid, the method includes temporarily disabling the line-side converter of the power converter from the electrical grid. Either during the transient event or after the transient event is over, the method includes implementing a control action for the line-side converter of the power converter. Further, the method includes enabling the line-side converter of the power converter to the electrical grid.
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19.发明公开
公开(公告)号：EP3816435A1
公开(公告)日：2021-05-05
申请号：EP20204696.7
申请日：2020-10-29
发明人： Wagoner, Robert Gregory , Mashtare, Dale Robert , Santos, Pedro Arsuaga , Rotbert, James Gregory
摘要： A method for operating a wind turbine power system connected to an electrical grid includes collecting data relating to one or more parameters of one or more electrical components of the wind turbine power system. The method may also include performing a statistical analysis of the data relating to one or more parameters of the one or more electrical components. Further, the method includes predicting future behavior of the electrical component(s) based on the statistical analysis. Moreover, the method includes determining set points for the electrical component(s) using the predicted future behavior. In addition, the method includes operating the wind turbine power system at the determined set points for the electrical component(s) so as to optimize at least one characteristic of the electrical component(s).
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公开(公告)号：EP3618264A1
公开(公告)日：2020-03-04
申请号：EP19193887.7
申请日：2019-08-27
发明人： Wagoner, Robert Gregory , Holliday, Cornelius Edward , Niemoeller, Benjamin Arthur , Smith, David
摘要： A power converter assembly (210) for an electrical power system (200) connected to a power grid (242) includes a rotor-side converter (220) configured for coupling to a generator rotor (122) of a generator (118) of the electrical power system (200), a line-side converter (222) electrically coupled to rotor-side converter (220) via a DC link (244), and a dynamic brake assembly (260) electrically coupled to the DC link (244). The line-side converter (222) is configured for coupling to the power grid (242). The dynamic brake assembly (260) includes a plurality of switching devices (264) connected in parallel and a plurality of inductors (266) electrically coupled between the plurality of switching devices (262).
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