| 摘要 |
The invention relates to an energy supply system with an n-phase electrical machine (1), where n >1, and with a controllable energy store (2), which serves to control and supply electrical energy to the electrical machine (1). In this case, the controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), which each have at least two energy storage modules (4) which are connected in series and which each comprise at least one electrical energy storage cell (5) with an associated controllable coupling unit (6), which are connected firstly to a reference rail (T-) and secondly to in each case one phase (U, V, W) of the electrical machine (1). Depending on control signals, the coupling units (6) either bypass the respectively associated energy storage cells (5) or switch the respectively associated energy storage cells (5) into the energy supply branch (3-1, 3-2, 3-3). The energy storage cells (5) of at least two energy storage modules (4) are each connectable to or disconnectable from a DC voltage intermediate circuit (9), via a controllable combinational circuit (8). |
