Structural Analysis considering Electromagnetic Force on Motor/Generator for Flywheel Energy Storage System

전자기력을 고려한 플라이휠 에너지 저장시스템용 전동발전기 구조해석

Flywheel Energy Storage System(FESS) consists of a high speed flywheel with an integral motor/generator suspended on non contact bearings and in an evacuated housing. Permanent magnet machines as the FESS motor/generator are a popular choice, since there are no excitation losses which means substantial increase in the efficiency. In this paper, the structural design method of rotor retainer for a high speed motor/generator are presented.