公开(公告)号：US09312696B2

公开(公告)日：2016-04-12

申请号：US14430632

申请日：2012-10-02

Applicant: ABB TECHNOLOGY LTD

Inventor： Stefan Thorburn ,  Nicklas Johansson

IPC: H02J1/00 ,  H02J3/00 ,  H02J3/36 ,  H02J3/38 ,  H02J5/00 ,  H02M7/04

CPC classification number: H02J3/36 ,  H02J3/38 ,  H02J5/00 ,  H02M7/04 ,  Y10T307/658

Abstract: It is presented a method executed in a transmission system, the transmission system comprising an AC grid, a DC grid and at least two AC/DC converters connected between the AC grid and DC grid. The method comprises the steps of: obtaining set points for each one of the at least two AC/DC converters, each set point comprising a magnitude and direction of power through the respective AC/DC converter during normal operation generating, based on the set points, a virtual AC grid, the virtual AC grid corresponding to AC behavior of the DC grid, as viewed from each AC side of the at least two AC/DC converters; and controlling the at least two AC/DC converters to mimic a behavior in accordance with the virtual AC grid. A corresponding transmission system is also presented.

Abstract translation: 提出了一种在传输系统中执行的方法，该传输系统包括AC电网，DC电网和连接在AC电网和DC电网之间的至少两个AC / DC转换器。 该方法包括以下步骤：获得所述至少两个AC / DC转换器中的每一个的设定点，每个设定点基于设定点，包括在正常操作生成期间通过相应的AC / DC转换器的功率的大小和方向 ，所述虚拟AC电网，所述虚拟AC电网对应于所述DC电网的AC行为，从所述至少两个AC / DC转换器的每个AC侧观察; 以及控制所述至少两个AC / DC转换器以模拟根据所述虚拟AC电网的行为。 还提出了相应的传输系统。

公开(公告)号：US20150295509A1

公开(公告)日：2015-10-15

申请号：US14430632

申请日：2012-10-02

Applicant: ABB TECHNOLOGY LTD

Inventor： Stefan Thorburn ,  Nicklas Johansson

IPC: H02M7/04

CPC classification number: H02J3/36 ,  H02J3/38 ,  H02J5/00 ,  H02M7/04 ,  Y10T307/658

Abstract: It is presented a method executed in a transmission system, the transmission system comprising an AC grid, a DC grid and at least two AC/DC converters connected between the AC grid and DC grid. The method comprises the steps of: obtaining set points for each one of the at least two AC/DC converters, each set point comprising a magnitude and direction of power through the respective AC/DC converter during normal operation generating, based on the set points, a virtual AC grid, the virtual AC grid corresponding to AC behaviour of the DC grid, as viewed from each AC side of the at least two AC/DC converters; and controlling the at least two AC/DC converters to mimic a behaviour in accordance with the virtual AC grid. A corresponding transmission system is also presented.

Abstract translation: 提出了一种在传输系统中执行的方法，该传输系统包括AC电网，DC电网和连接在AC电网和DC电网之间的至少两个AC / DC转换器。 该方法包括以下步骤：获得所述至少两个AC / DC转换器中的每一个的设定点，每个设定点基于设定点，包括在正常操作生成期间通过相应的AC / DC转换器的功率的大小和方向 ，所述虚拟AC电网，所述虚拟AC电网对应于所述DC电网的AC行为，从所述至少两个AC / DC转换器的每个AC侧观察; 以及控制所述至少两个AC / DC转换器以模拟根据所述虚拟AC电网的行为。 还提出了相应的传输系统。