Title: THIRD WINDING CONCEPT FOR SUPERCONDUCTING GENERATORS
Abstract: Abstract The growing interest in superconducting AC generators has given rise to the need for detailed studies of their external performances in a power system. In the currently studied superconducting generators, the conventional field forcing technique can be employed for the improvement of terminal voltage response and rotor damping. In this case, a large value of exciter ceiling voltage would be required because of relatively long electric time constants of field winding and electrothermal shield. To overcome this problem, new superconducting generators, called superconducting three winding generators, have been proposed. These machines have one or two rotors, an electrothermal shield and three principal windings : an armature winding, a superconducting field winding and a balanced two phase winding called third winding. In these machines, third winding exciter controls can be employed to improve the system performances for short period perturbations. This paper presents the transient performances of superconducting generators with or without the third winding exciter controls. The results are compared with those of currently studied superconducting generator. The mechanical structure of the superconducting three winding generator with a single rotor is a little more complex than that of the currently studied one but the former has better external performance than the latter.
Publication Year: 1980
Publication Date: 1980-09-01
Language: en
Type: article
Indexed In: ['crossref']
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