BYPASSED CASCADED CELL CONVERTER

摘要

In a converter for converting energy from a generator to a power network, wherein the converter comprises multiple power modules, wherein each power module includes at least two power cells and a transformer for connecting the power cells to the power network, wherein each power cell includes a phase input, a phase output, a transformer output connected to the transformer, a rectifier circuit and an inverter, the transformer (T) of a power module (4.1, . . . , 4.n) includes one generator-side winding (10) for each of the power cells (5) and exactly one common grid-side winding for balancing an energy flow through the power cells (5) of a power module (4.1, . . . , 4.n).

主权项

1. Converter for converting energy from a generator to a power network, in particular a frequency converter, wherein
a) a number of phases of the generator is at least two, b) the converter comprises multiple power modules, c) each power module includes at least two power cells and a transformer for connecting the power cells to the power network, d) each power cell includes a phase input, a phase output, a transformer output connected to the transformer, a rectifier and an inverter, characterized in that e) for balancing an energy flow through the power cells of a power module the transformer of the power module includes one generator-side winding for each of the power cells of that power module and exactly one common grid-side winding.