The superconducting generator
using super conductors in field winding is superior to
conventional generator in terms of power system stability,
generator efficiency, generator dimensions and weight. They
have been expected as a key generator technology to realize
large capacity more them 1GVA.. Recently for then advantages
are pointed out compared to conventional generator like
small internal impedance that is effective to make system
voltages in deregulated power system. These technical merits
have pushed the development of superconducting generator in
Japan, US, Germany and other countries. This paper covers
the structural details of rotor and stator, the working and
the cooling system for super conducting field windings. Also
the main features and research and development on super
conducing generator are covered briefly. . Fundamental
technology for higher density and larger capacity is now
under research. It is expected that superconducting
generators becomes superior to conventional generators from
economical and performance point of view. Superconducting
generators are useful for solving problems appeared in power
system and they are expected to the major source of
electrical power in the coming decades.
