In order to achieve an efficient collection of wave energy and stable power output, a two-float oscillating flapping-wing wave energy converter is proposed. Based on the hydraulic conversion system of the multi-chamber cylinder, a hydraulic conversion and merging system of the multi-chamber cylinder is created. The composition and working principle of the system, as well as the parameters of the acquisition mechanism, hydraulic conversion and merging system, are determined. AQWA is used to simulate the flapping-wing angular displacement response, and AMESim is used to build the simulation model of the acquisition mechanism, the hydraulic conversion and merging of multi-chamber cylinders, and the power conversion and energy storage system. The research results show that the system can work stably under level 3 and 4 sea conditions, and the input power of the battery is stable at about 46.5kW and 56.5kW, respectively. The rationality and feasibility of the two-float oscillating flapping-wing wave energy converter are verified by simulation.

Aiming at the problem of energy supplements for ocean buoys, an energy supplement system for ocean buoys is designed. The buoy shakes under the action of waves, and the energy supplement system located in the buoy collects ocean kinetic energy and converts it into stable electric energy for buoy power supplement or storage. The working principle, design schemes, and structural composition of the ocean buoy energy supplement system are determined. According to the motion principle of the shaking pendulum, the system torque equation is established. AQWA is used to simulate the motion characteristics of the floater under the first level of regular and irregular waves, and the roll angle displacement of the floater is taken as the input of the simulation model. The joint simulation of Adams and AMESim is used to build the electromechanical coupling simulation model of the system, which verifies the rationality of the design scheme. The results show that 3.3 V and 1 A DC can be generated under the action of first-order regular wave and irregular wave, and stable power output can be achieved to supplement the buoy or charge the battery.