Characteristic Analysis of Wave Power Generator Considering Bolting to Fix Permanent Magnet Based on Analytical Method

This paper proposes an electromagnetic analysis using an analytical method for a permanent magnet synchronous generator (PMSG) in a wave energy converter. To prevent the scattering of the rotor magnet of the PMSG with a wide operating range, bolting to the permanent magnet is required, and the analytical solution is calculated by simplifying it to two analytical models. Based on the electromagnetic theory, the analytical solution of each analytical domain is derived. The electromagnetic parameters are derived from the analytical solution and are calculated using the principle of superposition. The validity of the proposed analytical results is verified by comparing nonlinear 2-D and 3-D finite-element analysis with experimental results.