Optimization of a Coreless Permanent Magnet Linear Generator for Southern Mediterranean Sea Wave Energy Conversion

The interest in maximizing sustainable energy sources has recently increased worldwide as a result of an increase in energy demand. For nations with coastal boundaries, electric energy generation from sea or ocean waves represents a possible source of sustainable energy. It turns out that sea wave frequencies as well as heights may differ from one geographical location to another. In other words, maximization of sea wave energy harvesting necessitates tailoring the harvester to the expected coastal conditions. This paper presents a design optimization of a coreless permanent magnet linear generator for southern Mediterranean Sea wave energy conversion. In this work, sea wave data of the aforementioned Mediterranean Sea zone are taken into consideration in the design of the coreless permanent magnet generator. Design and simulation of the generator are carried out using a precise two- and three-dimensional analytical formulation, and optimization is carried out using the particle swarm (PSO) and genetic algorithm (GA) optimization techniques. These simulation results offer qualitative and quantitative insights on numerous aspects, including induced voltage and output power. A coreless sea wave generator design, achieved using three-dimensional analytical computations and PSO, capable of generating 116.54 V and 197.4 W ais presented in the paper. This design offers a maximum induced voltage per unit volume and unit velocity of about 67 K. Details of the design, simulations, and comparisons with samples of similar previously published generators are given in the paper.