Flat frequency, constant voltage power source device

摘要

A flat frequency, constant voltage power source device is provided for parallel operation of a plurality of electric generators. The generators include exciting windings of induction motors integral with the generators for connecting and disconnecting outputs of the generators. A starting sequence of the electric generators is based on a start signal provided externally and start preparation completion signals indicating completion of start preparation routines. The induction motors of the generators are thereby varied in frequency so that the generators can be synchronized in phase for their effective parallel operation.