ELECTRICAL MACHINES FOR FLYWHELL ENERGY STORAGE: TRENDS IN THE DEVELOPMENT ON THE BASIS OF FOREIGN PUBLICATIONS
Trends in the development of induction, permanent magnet synchronous, homopolar inductor, switched reluctance, synchronous reluctance electrical machines for flywheel energy storage on basis reviewing foreign publications. As a generator-motor for flywheel energy storage the most promising synchronous machine with permanent magnets. Is given constructive data and specifies measures to improve the efficiency of electrical machines. I meet a tendency to expand production of high-speed flywheel energy storage, and hence high-speed electrical machines. For flywheel energy storage used in virtually all types of contactless electrical machines, except synchronous machine with claw poles. The following conclusions are drawn: as for the engine-generator most promising synchronous machine with permanent magnet excitation. In most electrical machines vacuumized inner space, thereby cooling the rotor is difficult, and the primary factor is the amount of losses in the rotor.