| 摘要 |
The invention relates to a method for symmetrizing an energy storage system (1) comprising a series circuit of storage modules (2, 21). The series circuit of storage modules (2, 21) has at least two capacitive storage modules (2), said capacitive storage modules (2) being connected to a symmetrizing device (4) such that a charge of each capacitive storage module (2) can be influenced by a flow of current between the symmetrizing device (4) and the capacitive storage modules (2), wherein each capacitive storage module (2) has a capacitance (Ci). In order to achieve an optimized energy supply system, a method is proposed having the following steps: - ascertaining the capacitance (Ci) of each capacitive storage module (2), - determining a module charge (Qeq_i) for each capacitive storage module (2) at least from a voltage (Ui) of the respective capacitive storage module (2) and a specifiable symmetrizing voltage (Ueq_i), - determining a reference charge (Qref) at least from the module charges (Qeq_i) of the capacitive storage modules (2), - determining a symmetrizing charge (Qsym_i) for each capacitive storage module (2) at least from the reference charge (Qref) and the module charge (Qeq_i) of the respective capacitive storage module (2), and - influencing the charge of each capacitive storage module (2) by exchanging the respective symmetrizing charge (Qsym_i) between each capacitive storage module (2) and the symmetrizing device (4). |
