| 摘要 |
The invention relates to a method for controlling the power in a DC voltage network which connects a plurality of converters. In the method, a droop for a controlled variable (P1) of the first converter is assigned at least to the first converter, wherein a local control error (ΔP1, ΔP2…ΔPN) is assigned to each of the converters, wherein the local control error (ΔP1, ΔP2…ΔPN) corresponds to a difference between an actual variable value measured at the particular converter and a desired variable value assigned to the converter, and the droop of the first converter is corrected on the basis of a correction variable (Kor), wherein the correction variable (Kor) is formed as a difference between a comparison variable (ΔPmittel) and local control error (ΔP1) of the first converter, wherein the comparison variable (ΔPmittel) is derived from a local control error (ΔP2) of a further converter, and wherein the droop is corrected in such a manner that the absolute magnitude of the correction variable (Kor) is reduced. The invention also relates to an apparatus for transmitting electrical power, having a control unit which is set up to carry out the method. |
