Synchrogenverter - Hybrid generation system

In this paper the concept of integration of synchronous generator and power electronics converter is motivated and developed, wherein wound rotor synchronous generator and power electronic converter are connected parallel. According the integration concept the wound rotor synchronous generator is source of active power whereas the power electronic converter is source of reactive power. Thus the synchronous generator power factor moves from cosφ = 0.8 to cosφ = 1 and produces 25% more of active power keeping the synchronous generator rated current. Moreover volt-ampere power of the generation system rises 25%. If power converter is equipped in energy storage then it may deliver active and reactive power what, in transient states keeps stability of generated voltage and frequency. Such a generation system that contains wound rotor synchronous generator and integrated power electronic converter is called Synchrogenverter. A control concept of the integrated generation system is developed. Computer simulation study presents performance of the new arrangement in transient and steady state.