公开(公告)号：CA2721633A1

公开(公告)日：2011-06-30

申请号：CA2721633

申请日：2009-12-30

Applicant: ABB RESEARCH LTD

Inventor： LARSSON TOMAS ,  TINGLOW FREDRICK ,  DEMETRIADES GEORGIOS ,  HERMANSSON WILLY ,  PAPASTERGIOU KONSTANTINOS

IPC: H01M50/529 ,  H02J15/00

Abstract: A modular energy storage device for a high voltage electrical power system is provided comprising at least two modules connected in series, each module including at least one dc power-source unit enclosed in a container and a positive and a negative terminal, and the device further comprising a positive and a negative pole, a first and a second conductor arranged to form a current path between the positive and negative poles, the first conductor including a plurality of conductor parts connected to the terminals of the modules to provide a series connection of the modules, a first module of the series connection of the modules being connected to one of the poles, and the second conductor is connected between a last module in the series connection of modules and the other pole, wherein the first and second conductors are arranged to pass through the containers in parallel such that a current flows through the first conductor in a first direction and through the second conductor in a second direction opposite to the first direction.