Use of High Flux Density Ferromagnetic Cores in Linear Generators for Oceanic Wave Energy Conversion

The traditional linear generators for generation of electricity from the oceanic wave energy are made of ordinary graded steel core which has much core loss. In this paper, minimization the core loss is proposed by using high grade magnetic cores in a direct drive linear generator. The simulation is obtained by considering DI-MAX HF-10X core and conventional iron core. The mathematical model is presented in detail. The current, voltage, power, mechanical force, magnetic flux linkage, density, and intensity of the proposed linear generator are presented in detail. From the simulation result, it is found that, the linear generator made of Armco DI-MAX HF-lOX has lower magnetic loss than that of using the conventional iron core. Therefore, DI-MAX HF-10X is proposed for the permanent magnet based linear generator.