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公开(公告)号：US08929108B2
公开(公告)日：2015-01-06
申请号：US13773174
申请日：2013-02-21
Applicant: ABB Research Ltd.
Inventor： Gerardo Escobar , Ngai-Man Ho , Sami Pettersson
CPC classification number: H02M1/12 , H02J3/385 , H02M1/126 , H02M3/1582 , H02M7/539 , H02M2001/007 , Y02E10/58
Abstract: A method and an apparatus for controlling a grid-connected converter which includes a boost converter, a buck converter, and a current source inverter having an output CL filter. An input of the buck converter input is connected to an output of the boost converter, and an input of the current source inverter is connected to an output of the buck converter. The method includes controlling a boost converter input voltage, controlling a boost converter output voltage through control of a buck converter output voltage, and controlling the current source inverter to produce an AC current from the buck converter output voltage. The apparatus implements the method.
Abstract translation: 一种用于控制并网转换器的方法和装置，其包括升压转换器，降压转换器和具有输出CL滤波器的电流源逆变器。 降压转换器输入的输入端连接到升压转换器的输出，电流源逆变器的输入端连接到降压转换器的输出端。 该方法包括控制升压转换器输入电压，通过降压转换器输出电压的控制来控制升压转换器输出电压，以及控制电流源逆变器从降压转换器输出电压产生交流电流。 该装置实现该方法。
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2.发明授权Method and apparatus for detecting islanding conditions of a distributed grid 有权用于检测分布式电网孤岛状况的方法和装置公开(公告)号：US09331486B2
公开(公告)日：2016-05-03
申请号：US13668797
申请日：2012-11-05
Applicant: ABB Research Ltd
Inventor： Gerardo Escobar , Sami Pettersson , Leonardo-Augusto Serpa , Ngai-Man Ho , Antonio Coccia , Alexandre Oudalov , Adrian Timbus
CPC classification number: H02J3/38 , H02J2003/388
Abstract: An exemplary method and apparatus for detecting islanding conditions of a distributed grid are disclosed, wherein transfer of power through a power electrical unit is controlled on the basis of a control reference. The apparatus includes a first stage and a second stage performing a respective portion of the method. The first stage injects a reactive component to the control reference, and, for at least one electrical quantity of the grid, determines a change in the quantity induced by the injected component, and determines, on the basis of the change in the electrical quantity, whether to move to the second stage of the method. The second stage, for at least one electrical quantity of the grid, determines a value of the electrical quantity, forms a positive feedback term using at the determined value adding a positive feedback term to the control reference, determines a change in an electrical quantity induced by the feedback term, and determines islanding condition on the basis of the change in the quantity induced by the feedback term.
Abstract translation: 公开了一种用于检测分布式电网的孤岛状况的示例性方法和装置，其中基于控制参考来控制通过电力单元的电力传输。 该装置包括执行该方法的相应部分的第一阶段和第二阶段。 第一阶段向控制基准注入无功分量，并且对于电网的至少一个电量来确定由所注入的分量引起的量的变化，并且基于电量的变化， 是否移动到第二阶段的方法。 第二阶段，对于电网的至少一个电量，确定电量的值，以确定的值形成正反馈项，将正反馈项添加到控制参考，确定引起的电量的变化 根据反馈项，根据反馈项引起的数量变化确定孤岛状态。
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Patent Agency Ranking
公开(公告)号：US09030854B2
公开(公告)日：2015-05-12
申请号：US13912398
申请日：2013-06-07
Applicant: ABB Research Ltd
Inventor： Gerardo Escobar , Sami Pettersson , Ngai-Man Ho
CPC classification number: H02M7/42 , H02J3/383 , H02M1/126 , H02M7/487 , H02M2001/0003 , H02M2001/123 , Y02E10/563
Abstract: An exemplary method and an apparatus implementing the method for an arrangement having a three-phase, multi-level inverter, an output LCL-filter connecting the inverter to a grid, and a virtual-ground connection between the LCL-filter and the neutral point of the DC-link. The method includes determining a zero-sequence component of an LCL-filter inverter-side current, calculating a zero-sequence damping and balancing voltage term based on the LCL-filter inverter-side current zero-sequence component and voltages over the two halves of the DC-link, and adding the zero-sequence damping and voltage balancing term to the output voltage reference.
Abstract translation: 实现具有三相多电平逆变器，将逆变器连接到电网的输出LCL滤波器和LCL滤波器与中性点之间的虚拟接地连接的装置的示例性方法和装置 的直流链路。 该方法包括：确定LCL滤波器逆变器侧电流的零序分量，基于LCL滤波器逆变器侧电流零序分量计算零序阻尼和平衡电压项，并且在两 DC链路，并将零序阻尼和电压平衡项添加到输出电压基准。
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公开(公告)号：US09331563B2
公开(公告)日：2016-05-03
申请号：US14242288
申请日：2014-04-01
Applicant: ABB Research Ltd
Inventor： Tin-Ho Li , Ngai-Man Ho , Gerardo Escobar , Jonathan Bradshaw
IPC: H02M1/34
CPC classification number: H02M1/34 , H02M2001/342 , Y02B70/1491
Abstract: Exemplary embodiments are directed to an snubber circuit and a power converter having an active circuit. The snubber circuit includes a series connection of a first diode and a first inductor connected between a first interfacing point and a first connection point, a second diode connected between a second connection point and a second interfacing point, a series connection of a third diode and a second inductor between a third interfacing point and the second connection point, a switching device connected between the first connection point and the third interfacing point, and a first capacitor connected between the first connection point and the second connection point. The first, the second, and the third diode are forward-biased along a path between the first interfacing point and the second interfacing point and through the third interfacing point.
Abstract translation: 示例性实施例涉及具有有源电路的缓冲电路和功率转换器。 缓冲电路包括连接在第一接口点和第一连接点之间的第一二极管和第一电感器的串联连接，连接在第二连接点和第二接口点之间的第二二极管，第三二极管的串联连接和 在第三接口点和第二连接点之间的第二电感器，连接在第一连接点和第三接口点之间的开关装置，以及连接在第一连接点和第二连接点之间的第一电容器。 第一，第二和第三二极管沿着第一接口点和第二接口点之间的路径并通过第三接口点被正向偏置。
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公开(公告)号：US09344005B2
公开(公告)日：2016-05-17
申请号：US14186259
申请日：2014-02-21
Applicant: ABB Research Ltd
Inventor： Ngai-Man Ho , Gerardo Escobar , Francisco Canales
Abstract: Exemplary embodiments are directed to methods and systems for producing a three-phase current to a three-phase output. Switching converters are used to generate a positive current, a negative current, and an intermediate current. The system is configured such that the produced positive current follows a path of a highest phase of a sinusoidal three-phase signal at a given time, the produced negative current follows a path of a lowest phase of the three-phase signal at the given time, and the produced intermediate current follows a path of a phase of the three-phase signal between the highest and the lowest phase at the given time. The produced currents are switched to each phase conductor of the three-phase output in sequence so that phase currents of the three-phase current are formed in the output conductors.
Abstract translation: 示例性实施例涉及用于产生三相电流到三相输出的方法和系统。 开关转换器用于产生正电流，负电流和中间电流。 该系统被配置为使得所产生的正电流在给定时间沿着正弦三相信号的最高相位的路径，所产生的负电流遵循在给定时间的三相信号的最低相位的路径 并且所产生的中间电流遵循在给定时间在最高和最低相之间的三相信号的相位的路径。 所产生的电流依次切换到三相输出的每个相导体，使得在输出导体中形成三相电流的相电流。
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公开(公告)号：US20140313627A1
公开(公告)日：2014-10-23
申请号：US14242288
申请日：2014-04-01
Applicant: ABB Research Ltd
Inventor： Tin-Ho LI , Ngai-Man Ho , Gerardo Escobar , Jonathan Bradshaw
IPC: H02M1/34
CPC classification number: H02M1/34 , H02M2001/342 , Y02B70/1491
Abstract: Exemplary embodiments are directed to an snubber circuit and a power converter having an active circuit. The snubber circuit includes a series connection of a first diode and a first inductor connected between a first interfacing point and a first connection point, a second diode connected between a second connection point and a second interfacing point, a series connection of a third diode and a second inductor between a third interfacing point and the second connection point, a switching device connected between the first connection point and the third interfacing point, and a first capacitor connected between the first connection point and the second connection point. The first, the second, and the third diode are forward-biased along a path between the first interfacing point and the second interfacing point and through the third interfacing point.
Abstract translation: 示例性实施例涉及具有有源电路的缓冲电路和功率转换器。 缓冲电路包括连接在第一接口点和第一连接点之间的第一二极管和第一电感器的串联连接，连接在第二连接点和第二接口点之间的第二二极管，第三二极管的串联连接和 在第三接口点和第二连接点之间的第二电感器，连接在第一连接点和第三接口点之间的开关装置，以及连接在第一连接点和第二连接点之间的第一电容器。 第一，第二和第三二极管沿着第一接口点和第二接口点之间的路径并通过第三接口点被正向偏置。
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7.发明申请公开(公告)号：US20130200715A1
公开(公告)日：2013-08-08
申请号：US13753778
申请日：2013-01-30
Applicant: ABB RESEARCH LTD
Inventor： Sami PETTERSSON , Ngai-Man Ho , Gerardo Escobar
IPC: H02M7/537
CPC classification number: H02M7/537 , H02J3/383 , H02M1/12 , H02M7/487 , H02M7/53871 , H02M2001/007 , H02M2001/123 , Y02E10/563 , Y10T307/707
Abstract: A converter assembly includes a DC-DC converter, an inverter, a DC link, an input capacitor, an inductor and a neutral conductor. The DC-DC converter includes at least one DC-DC converter unit. The input capacitor includes an input capacitor unit for each of the at least one DC-DC converter unit, where each of the input capacitor units has a midpoint. The neutral conductor is connected to a neutral point on an output side of the inverter. The inductor includes an inverter side inductor between each output terminal of the inverter means and the neutral point on output side of the inverter. The neutral conductor is connected to the midpoint of each of the input capacitor units.
Abstract translation: A转换器组件包括DC-DC转换器，逆变器，DC链路，输入电容器，电感器和中性导体。 DC-DC转换器包括至少一个DC-DC转换器单元。 输入电容器包括用于至少一个DC-DC转换器单元中的每一个的输入电容器单元，其中每个输入电容器单元具有中点。 中性导体连接到变频器输出侧的中性点。 电感器包括逆变器装置的每个输出端子和逆变器的输出侧的中性点之间的反相器侧电感器。 中性导体连接到每个输入电容器单元的中点。
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