Design optimization of a pico linear permanent magnet generator with novel shaped magnet for wave energy conversion using finite element analysis

This paper presents the design optimization of a pico linear permanent magnet (PM) generator with novel shaped magnet for wave energy conversion. The finite element analysis (FEA) using time-stepping finite element method has been carried out where the electromagnetic characteristics such as open-circuit magnetic field distribution, magnetic flux density, induced-EMF, and flux linkage are presented. The optimization has been carried out based on the leading dimensions; angle �β�, Tmr/Tp, and Rm/Re, which have significant influence on the performance of linear PM generator. The optimum values for Tmr/Tp, PM angle β and Rm/Re are 0.7, 80° and 0.72 are achieved respectively, which yields maximum efficiency. © Research India Publications.