Permanent magnets radial generator with double rotor for making use of wave energy for maritime signaling buoys

This article presents the design of a electromechanical energy conversion composed by an electromagnetic device that uses a maritime buoy vertical oscillation as a source of prime energy to feed a flashing system of a signaling buoy called eclipsor. The eclipsor's load curve is obtained and the input power is calculated. The construction of a radial permanent magnets brushless, slotless, double-rotor generator is proposed. The rotor motion is provided by its mass decentralization that is resonant with the wave's motion. The double rotor increases the machine's magnetic loadability needed to work in a very slow driving speed.