Design of Multi-stack Axial Flux Permanent Magnet Synchronous Generator Considering Electromagnetic and Mechanical Characteristics

전자기 및 기계적 특성을 고려한 다중 적층형 AFPMSG의 설계

This paper discusses the electromagnetic and mechanical design considerations to improve the design accuracy and power to mass ratio of multi-stack axial flux permanent magnet synchronous generator (AFPMSG). Design accuracy of multi-stack AFPMSG for direct drive wind turbine application is improved by considering magnetic flux leakages and fringing effect. FEM structural analysis is utilized to increase power to mass ratio of three-stack AFPMSG by reducing the rotor yoke thickness considering magnetic and centrifugal forces and Von Mises stress distribution.