| 摘要 |
The invention relates to a frequency converter for an energy flow from a three-phase network to a consumer for medium and high output voltages, with variable frequency, current and voltage outputs, fed from secondary windings of a transformer with one or more cells per output phase (R, S, T). For each output phase, each identical cell has a diode input rectifier circuit, an active harmonic filter, an intermediate-circuit capacitance, and a three-point DC/AC converter on the output side.
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