Анализ параметров синхронного генератора со сверхпроводящими обмотками для автономной электроустановки

Abstract

The article considers the possibility of using synchronous generators with liquid nitrogen cooled superconducting windings on the stator and rotor in self-contained electric power units with a voltage level up to 1000 V. High efficiency of such generators is demonstrated, and the basic correlations for estimating their main parameters are given. It follows from the obtained correlations that with the specified geometrical sizes and the rotor and stator winding data, the superconducting synchronous generator output power proportional to the rotor rotation frequency is determined by the following parameters: (i) the inductor geometrical sizes and the square of the excitation winding MMF; (ii) the air gap width, the volume of which must be proportional to the generator power capacity; and (iii) the permissible armature current load, the value of which will make it possible to obtain the design power output at the specified voltage level. Fulfilling of these requirements is the necessary condition for developing a synchronous generator with the specified power with superconducting windings on the stator and rotor for self-contained power installations.