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"Characterization of the High Graded Magnetic Material based Linear Gen" by Selim Molla, Omar Farrok et al.

Characterization of a permanent magnet linear generator (PMLG) for harvesting oceanic wave energy is presented in this paper. For the characterization, a PMLG has been designed which has a translator containing permanent magnet and vertically symmetric stator. Different high graded magnetic materials are applied to the PMLG to generate high amount of electrical power. As a part of characterization, load profile is analyzed to determine its peak generated power for each of the magnetic materials. Comparison of generated voltage, generated voltage, load current, output power, and magnetic flux linkage of the PMLG are presented in detail. Translator force and velocity are determined to calculate the efficiency of the PMLG. The analysis is performed with finite element method by using ANSYS/Maxwell software. Armature reaction, demagnetization, and core loss that occurs in the PMLG are considered for the analysis. ....

Electrical Energy Efficiency , Energy Conversion , High Grade Magnetic Cores , Linear Generators , Ermanent Magnet Machines , Renewable Energy Sources , Wave Power ,

"Reduction of Core Loss and Increase in Electrical Power Generation of " by Selim Molla, Omar Farrok et al.

Permanent magnet linear generator (PMLG) is mostly applied to oceanic wave energy conversion systems because of its excellent conveniences. But the conventional PMLGs suffer from much core loss and demagnetization because of armature reaction during operation, which are responsible for the electrical power generation. To overcome this problem, standard and advanced magnetic materials are applied to the PMLG for analysis in this paper. At first, a PMLG is designed to test the effect of using the advanced magnetic materials. Further, the PMLG is analyzed with standard steel core and M4-Carlite magnetic core along with two neodymium iron boron permanent magnets namely N30H and N48H. Construction, working principle, and mathematical model of the PMLG are presented. Demagnetization curves of N30H and N48H permanent magnets, magnetization, and core loss curves of the standard steel core and M4-Carlite magnetic core are presented for comparison. Simulation works are executed by finite element ....

High Grade Magnetic Cores , Linear Generators , Ceanic Wave Power Permanent Magnet Machines , Renewable Energy Sources ,