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Frequency converter for wind alternator
SIEB & MEYER

The SIEB & MEYER feed-in converter aeocon for small wind turbines has been developed based on a concept for which we have applied a patent. aeocon combines the rectifier, the inverter and the ballast circuit in one compact housing. This concept allows triggering the ballast resistor directly. The rated power of the device designed for single-phase 230 V mains is specified with 4 or 5 kW.

The "brain" of aeocon is the control especially adapted to the requirements of small wind turbines. This allows excellent control of the different operating states under consideration of the characteristic curve of the turbine. This characteristic curve can be defined as performance over frequency curve P(f) or performance over voltage curve P(U). The control ensures smooth start-up of the wind turbine at every time and selection of the optimum operating point during different wind conditions. The wide-range power input allows feeding in energy even at low wind speeds. This has positive effects on the energy yield and increases overall efficiency of the wind turbine.