Optimal Design of High Power Linear Permanent Magnet Synchronous Motor for Aircraft Launch

Design optimization and analysis of the high power linear permanent magnet synchronous motor for aircraft launch are presented in this paper. This motor has a decentralized stator that runs the entire length of travel. A plate with an array of permanent magnets is used as the secondary. This structure enables easier manufacture, flexible system assembling, and autonomous decentralized control employed for energy saving. The thrust and cogging force of the motor are highly affected by the motor structural parameters. The influences of these structural parameters on the thrust and cogging force are analyzed by finite element analysis method; experiment studies are carried out to support the theoretical analysis.