Design Optimization of Reluctance-Synchronous Linear Machines for Electromagnetic Aircraft Launch System

This paper describes the design optimization and analysis of reluctance-synchronous linear motor with a solid or laminated moving part (secondary). The calculation of the motor performance is described using analytical formulation and numerical method. The main advantage of this system is the removal of permanent-magnet secondary and replacing it with a reluctance-type secondary. The first purpose of this paper is designing a reluctance-synchronous linear motor with the maximum-output thrust force and optimum power factor. In this model, a long primary (armature) and a short secondary are evaluated. Distributed winding is considered for design and analysis. Finally, air-gap winding configuration is evaluated.