Series-connected self-excited synchronous generator for distributed generation

The use of a series-connected self-excited synchronous generator for isolated distributed generation is investigated. Such a machine may be realized by connecting the stator and rotor windings of a slip-ring induction machine in series, but with reversed phase sequence. The advantage of the machine configuration is high power density and high-speed operation. Both phasor diagram and time-stepping finite element analysis may be used for prediction of the generator performance. A comparison between field computation and experimental results is made.

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