A high speed induction generator based on power integration techniques

A novel high speed induction generator is presented based on the new idea of electric power integration, wherein a stator containing one set of M-phase power winding and another set of 3-phase compensation winding, is combined with an biphase bridge rectifier, self-excited capacitors, interphase reactors, a static excitation regulator as well as a evaporative cooling system to form an integral whole. The dual-stator winding structure improves the EMC of the system and the multiphase rectifier ensures the high quality of the DC power. A solid iron squirrel-cage rotor satisfies both strength requirements and electrical requirements. The self-excited capacitors and IPR can reduce the capacitance of the SER. A simple stator-voltage-orientation control strategy is presented to regulate the output voltage under variable speed and load. The proposed scheme of high speed induction generator is suitable for larger power integration of distributed generation, which can be applied in electric vehicles, ship propulsion and aircraft generation, etc.

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