Abstract
Fossil fuels are mostly utilized for producing electricity in many countries including Bangladesh, which emit bulk amount of greenhouse gases. At present, about 3% electricity is produced in Bangladesh from renewable energy sources (RESs) viz. solar, wind, hydro, and bioenergy to reduce the emission level. In this paper, an oceanic wave energy based direct drive linear generator is proposed to produce electrical power. As the oceanic wave energy converter results almost zero carbon emission it can mitigate the adverse environmental impact. Mathematical model of the wave energy and linear generator are presented. The proposed generator design and its working principle are described. The generated voltage, armature current, power generation, magnetic flux linkage, and mechanical force are plotted. Load profile of the generator are also presented. High graded magnetic materials are applied to the proposed generator to reduce the conversional power loss. Simulation results show that the proposed generator produces approximately 5.44 kW of electrical power (maximum) where the peak voltage of the proposed generator is 198.5 V. Therefore, the oceanic wave farm can be constructed with several linear generators to produce sufficient electricity and mitigate negative environmental impact. As the harvesting of oceanic wave energy does not require any land area, the corresponding impact of using the land area can be avoided which is another benefit of using it. Moreover, the proposed power generation scheme can be supportive not only for Bangladesh but also for the countries that have adjacent ocean and plan to achieve net zero emission target.