DEVELOPMENT AND TEST OF A 300-KW SUPERCONDUCTING HOMOPOLAR GENERATOR

A 300 kW superconducting homopolar generator has been jointly develope d and tested by Wuhan Marine Electrical Propulsion Research Institute and Institute of Electrical Engineering, Academia Sinica. It is a drum -type machine with superconducting excitation and solid brush current collection, 1300 rpm rotating speed, 230-330 V output voltage. The arm ature rotor diameter is 620 mm, effective length is 600 mm, the averag e radial magnetic field in the armature region is 0.75 T. During test it reached 300 kW nominal output power and worked stably. The design a nd development of the machine and its main components, together with i ts test results are presented.