公开(公告)号：US09531292B2

公开(公告)日：2016-12-27

申请号：US14897758

申请日：2013-06-14

Applicant: ABB Technology Ltd

Inventor： Kalpesh Hirjibhai Bhalodi ,  Lennart Harnefors ,  Sasitharan Subramanian ,  Tomas Jonsson

IPC: H02M7/219 ,  H02M7/217 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M7/217 ,  H02M7/219 ,  H02M7/483 ,  H02M2001/0074 ,  H02M2007/4835

Abstract: An arrangement for tapping power from a DC power line to an AC power line includes power transfer modules between two DC potentials, each including a first branch with a string of converter cells in parallel with a second branch including a capacitor and being connected to an AC phase. There is at least one control unit that controls the arrangement considering one or more of a) distributing appropriate AC and DC voltages in converter output voltages of all series connected modules, b) maintaining/setting cell capacitor voltages in specific range and allowing boost mode operation, c) performing possible balancing of the introduced capacitor and d) employing an alternate approach of using passive filters to mitigate low order harmonics.

Abstract translation: 用于从DC电力线路到AC电力线的电力抽出的装置包括两个DC电势之间的功率传递模块，每个DC电势包括具有一串转换器单元的第一分支与包括电容器的第二分支并联连接到AC 相。 至少有一个控制单元，其考虑以下一个或多个控制装置：a）在所有串联连接的模块的转换器输出电压中分配适当的AC和DC电压，b）保持/设置单元电容器电压在特定范围内并允许升压模式操作 ，c）执行引入的电容器的可能平衡，以及d）采用使用无源滤波器以减轻低阶谐波的替代方法。

公开(公告)号：US09461473B2

公开(公告)日：2016-10-04

申请号：US15023898

申请日：2013-10-03

Applicant: ABB TECHNOLOGY LTD

Inventor： Lennart Harnefors ,  Lidong Zhang ,  Nicklas Johansson

IPC: H02J3/36 ,  H02J3/24

CPC classification number: H02J3/24 ,  H02J3/36 ,  H02J2003/365 ,  Y02E60/60

Abstract: Embodiments disclose using a pairing or pairings of terminals in a DC power system including a plurality of terminals to implement power oscillation damping (POD), where the DC power system is connectable to at least one AC power system. The active and/or reactive power of the terminals in the pairing may be controlled or modulated in a similar manner such that no power imbalance in the DC power system is created. For example, POD may be implemented by means of active and/or reactive power modulation by pairing two terminals in the DC power system) such that their active and/or reactive powers are controlled or modulated in the same or substantially the same manner or identically but with the opposite sign.

Abstract translation: 实施方式公开了在包括多个端子的DC电力系统中使用配对或配对的端子来实现功率振荡阻尼（POD），其中DC电力系统可连接到至少一个AC电力系统。 可以以类似的方式控制或调制配对中的终端的有功和/或无功功率，使得不产生直流电力系统中的功率不平衡。 例如，可以通过在DC电力系统中配对两个终端的有源和/或无功功率调制实现POD），使得它们的有功和/或无功功率以相同或基本相同的方式或相同的方式被控制或调制 但与此相反。