Post-Processing Of Electric Energy Based On Buoy-Rope-Drum Wave Power System

Wave energy is a kind of renewable energy with many advantages such as huge reserves,widely distributed,high power density.Society pays more and more attention to wave energy.As a new kind of point absorption wave energy converter,the buoy-rope-drum wave energy converter has many potential benefits such as good survivability,low construction cost.The post-processing of electricity generated by the wave generator includes rectification,filtering,inverting,stabilizing,inverting,transmission and utilization.This paper analyzes the problems of the electric energy post-processing system designed for the first sea trial,and puts forward the improvement scheme.The simulation and laboratory experiments are carried out.The main contents of this paper are as follows:(1)The principle of buoy-rope-drum wave energy converter is introduced.The problems existing in the original electric energy post-processing system are analyzed,and the improvement plan is put forward.(2)The simulation experiment on the output characteristics of the system with voltage regulated power is carried out,and a system power control strategy based on the capacitance voltage is proposed based on the experimental results.(3)Based on the proposed improvement scheme and the system power control strategy,a simulation model of the wave generation power post processing system for floating ropes is established in SIMULINK,and the proposed scheme is verified by simulation experiments.(4)An electric power post-processing circuit is built by using a buoy-rope-drum wave energy converter experimental platform,and the feasibility of the proposed scheme is further verified through the experiments.