Research On Optimal Power Tracking Of Oscillation-buoy Wave Energy Device

With the development of the economy,the over use of traditional energy has graduallytriggered global energy crisis in recent years.Therefore,the discovery and exploit of new andrenewable energy has become a critical way for the sustainable development in the21stcentury.Wave energy is a kind of renewable, non-polluting, large reserves,wide distribution butlow density,unstable and hard to use energy.At present,the technology of wave powergeneration has entered the stage of commercial development and will develop to a large-scaleuse and a direction which is independent and stable.After analyzing the situation of researchon wave power generating technology at home and abroad,the paper carry out the followingwork:Firstly:a new generating device is presented,and the composition and functions of itsinternal structure such as spring-mass oscillating bodies,mechanical transmission,generatorand control institutions are introduced.Secondly:the device take special measures on energy transmission,which make themovement of mass change from reciprocating to rotary motion of a single direction,so that itcan drive the rotation generator efficiently and avoid losing of mechanical energy for theinertial of reciprocating linear motion inertial.Finally:The control strategies think "resonance" state of Spring-mass oscillating as thetarget,so the paper put forth a combination of regulation method which include vibratingmass and electrical power output.Through regulating mass quality (water or drainage)to adaptthe slowly varying wave changes and controlling rectifier to adapt the rapidly varying wavechanges,which force the vibration system into resonance to improve power generationefficiency.Both of them are easy to implement and also play a protective role in extremeweather conditions.