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    • 88. 发明公开
    • VERFAHREN ZUM SYMMETRIEREN EINES ENERGIESPEICHERSYSTEMS
    • EP3224894A1
    • 2017-10-04
    • EP15798035.0
    • 2015-11-19
    • Siemens Aktiengesellschaft
    • KLEFFEL, RüdigerQUAST, FabianRUPPERT, Swen
    • H01M10/42H01G9/00H01G11/00H01G11/04H01G11/06H01G17/00H01M10/44H01M12/00H01G15/00H01M10/46H02J7/00
    • B60L11/1866B60L58/22H01G11/08H01G11/14H01M10/4207H01M10/425H01M10/441H01M10/46H01M12/005H01M2010/4271H01M2010/4278H01M2220/20H02J7/0014H02J7/0016H02J7/0021H02J7/345Y02E60/13Y02T10/7022
    • 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 (C
      i ). In order to achieve an optimized energy supply system, a method is proposed having the following steps: - ascertaining the capacitance (C
      i ) of each capacitive storage module (2), - determining a module charge (Q
      eq_i ) for each capacitive storage module (2) at least from a voltage (U
      i ) of the respective capacitive storage module (2) and a specifiable symmetrizing voltage (U
      eq_i ), - determining a reference charge (Q
      ref ) at least from the module charges (Q
      eq_i ) of the capacitive storage modules (2), - determining a symmetrizing charge (Q
      sym_i ) for each capacitive storage module (2) at least from the reference charge (Q
      ref ) and the module charge (Q
      eq_i ) of the respective capacitive storage module (2), and - influencing the charge of each capacitive storage module (2) by exchanging the respective symmetrizing charge (Q
      sym_i ) between each capacitive storage module (2) and the symmetrizing device (4).
    • 本发明涉及一种用于对包括存储模块(2,21)的串联电路的能量存储系统(1)进行对称化的方法。 存储模块(2,21)的串联电路具有至少两个电容存储模块(2),所述电容存储模块(2)连接到对称设备(4),使得每个电容存储模块(2) 可受到对称装置(4)和电容存储模块(2)之间的电流的影响,其中每个电容存储模块(2)具有电容(Ci)。 为了实现优化的能量供应系统,提出了一种具有以下步骤的方法: - 确定每个电容存储模块(2)的电容(Ci); - 确定每个电容存储模块(2)的模块电荷(Qeq_i) )至少从相应电容存储模块(2)的电压(Ui)和可预先给定的对称电压(Ueq_i)中确定参考电荷(Qref), - 至少从电容存储模块(2)的模块电荷(Qeq_i) 2), - 至少从相应的电容存储模块(2)的参考电荷(Qref)和模块电荷(Qeq_i)确定每个电容存储模块(2)的对称电荷(Qsym_i),以及 - 影响电荷 通过交换每个电容存储模块(2)与对称化设备(4)之间的相应对称电荷(Qsym_i),来控制每个电容存储模块(2)的电压。