A generating set includes an engie driven generator (PGM) having two sets of
stator
windings (Ga and Gb). A bi-directional AC/DC converter (BCo) has its AC input connected
to a junction between the two sets of stator windings (Ga and Gb) and its DC input
connected to a number of the generator (PGM) is converted into an intermediate
DC link by a convertor (Col) to produce an output for a load Lo. In normal operation
of the system, an emf generated in one (Ga) of the sets of stator windings is rectified
by the bi-direcitonal converter (BCo) to charge the energy storages (ESI-ESN) whilst
the remainder of the generator output is fed through the converter to the load
(Lo). In the event of a stepped increase in the load demand, the bi-directional
converter (BCo) is operated to feed energy from the storage devices (ESI-ESN) to
the stator windings (Ga) of the generator (PGM) to impart a driving torque to the
generator rotor to accelerte the rotor to meet the increased load demand. The energy
stored in the storages devices (ESI-ESN) could be used to start the engine (EN).
