Characteristics of Linear Generator with SC Coil Configuration to Reduce Leakage Flux

An improved configuration of superconducting (SC) coils, whose end coils have small size, is studied to reduce their leakage flux. This configuration can strengthen the magneto-motive force of SC coils, so it can enlarge the lateral gap between generator coils and cryostat of SC coils to increase output power of linear generator. This paper presents the basic configuration of this system and examines their characteristics by numerical examples.