ENERGY STORAGE DEVICE, SYSTEM COMPRISING AN ENERGY STORAGE DEVICE, AND METHOD FOR ACTUATING AN ENERGY STORAGE DEVICE

摘要

The invention relates to an energy storage device (1) for generating an n-phase supply voltage, wherein n≧1, comprising n energy supply branches connected in parallel, which are each coupled to a respective output connection (1a, 1b, 1c) of the energy storage device (1), wherein each of the energy supply branches has a plurality of energy storage modules (3) connected in series. The energy supply branches each have a respective energy storage cell module (5), which has at least one energy storage cell (5a, 5n), and a respective coupling device (7) having first coupling elements (7a, 7b, 7c, 7d), which are designed to selectively connect the energy storage cell module (5) into the respective energy supply branch or bypass the energy storage cell module. At least one of the energy supply branches has at least one second coupling element (8), which is coupled between output connections of energy storage cell modules (5) that are adjacent in the at least one energy supply branch and which is designed to connect the coupled energy storage cell modules (5) into the respective energy supply branch in parallel with each other.

主权项

1. An energy storage device (1) for generating an n-phase supply voltage, wherein n≧1, comprising:
n energy supply branches which are connected in parallel and which are each coupled to at least one output connection (1a, 1b, 1c) of the energy storage device (1), wherein each of the energy supply branches has a multiplicity of energy storage modules (3) which are connected in series and which each comprise: an energy storage cell module (5), which has at least one energy storage cell (5a, 5k), and a coupling device (7) comprising first coupling elements (7a, 7b, 7c, 7d), which are designed to switch the energy storage cell module (5) selectively into the respective energy supply branch or to bypass said energy storage cell module; and wherein at least one of the energy supply branches has at least one second coupling element (8), which is coupled in each case between output connections (5m, 5p) of adjacent energy storage cell modules (5) in the at least one energy supply branch, and which is designed to switch the coupled energy storage cell modules (5) in parallel with one another into the respective energy supply branch.