Research And Design Of Wave Power Controller And Its Power Generation System

The ocean wave power is pollution-free and has huge reserves.Therefore,the study of wave power generation has great practical significance for the development of marine economy and the protection of marine rights and interests.The wave power near the land is easily integrated into the grid and the technology is relatively mature.In the oceans far from the mainland,wave power is more abundant,but it is difficult to access the grid.There are many forms of wave power generation technology.Among them,point absorption wave energy generation device has the advantages of small volume and high conversion efficiency.However,the single power is small and multiple parallel operations are required.Therefore,this paper focuses on the wave power controller based on the device and the management strategy of the power generation system.Firstly,the power generation characteristics of the device are studied by simulation experiments.The results show that the output of the device is random and unpredictable.In power generation systems,the balance of power and the stability of bus voltage are crucial.In this paper,a wave power controller is studied and designed to transform and control electrical power,and the power management strategy of power generation system is studied to solve the problem.This paper designs a wave power controller based on the H-bridge Buck-Boost circuit.Correlation parameters and control algorithm are deduced and analyzed.Matlab Simulink simulation model is built and simulated.The results show that the controller has reasonable design and high performance.This paper designs and implements the software and hardware experimental part of wave power controller,and builds the experimental platform using generator,wave power controller,battery and simulated load.The experimental results verify the effectiveness of wave power controller in solving the problem of output instability.Finally,this paper designs the whole structure of wave power generation system,proposes the drooping control strategy and carries on the simulation experiment for the parallel voltage stabilization problem of the three wave power controllers.At the same time,the hierarchical power management strategy is put forward to realize the system's stable operation.