| 摘要 |
The invention relates to a control method for the active compensation of fluctuations of a power flow of a power electronic converter system, wherein the converter system has a main converter (2) for the transfer of power between a DC port and an output port, as well as a buffer capacity C connected in parallel to the DC port and with a buffer capacity voltage uC, wherein a compensator (4) is connected in parallel to the buffer capacity C, which has a coupling converter (41) and an energy storage means (42), wherein the coupling converter (41) is designed to supply energy to the energy storage means (42) or to remove same. The method involves the following steps: determining an output pout,AC delivered by the main converter at the output port; determining, based on the output pout,AC* delivered by the main converter at the output port, a desired value of an output pK,out* to be discharged or received by the compensator (4) and/or a desired value for an energy storage means current iE* of the compensator (4); actuating the coupling converter (41) such that the output discharged or received by the compensator and/or the energy storage means current follows the corresponding desired value. |
