AbstractThe design of a sealed wave power generator has been proposed, whose driving parts are sealed in a closed outer covering to protect them from corrosion by sea water. Wave energy is collected using a pendulum. Overrunning roller clutches are used to convert the swing of the pendulum to unidirectional rotation of generators. A design method based on the Principle of Conservation of Energy has been proposed. A guide plate is equipped on the platform where the wave power generator sits on, to ensure the swing plane of the pendulum parallel to the main vibration plane of the wave. Power processing circuit has also been equipped, which can perform automatic current and voltage regulation under the condition of large variation of wave height and cycle. Experiments have demonstrated that the sealed wave power generator is applicable.