Scavenging wind induced vibration by an electromagnet energy harvester from single to multiple wind directions
Huirong Zhang, Wentao Sui, Chongqiu Yang, Leian Zhang, Rujun Song, Xiaohui Yang
Abstract
In this paper, an electromagnet power energy harvester is proposed and experimented that using galloping force to achieve wind energy converting into usable electricity. When the device is subjected to a relative low wind speed excited, due to the galloping force, the square prism vibrates at a certain angle in the direction perpendicular to the wind excitation. To achieve multiple directions wind energy scavenging purpose, a 3 × 3 magnets array is determined to obtain the maximum flux changing rate at multiple directions of wind. It is indicated that the proposed energy harvester exists a maximum power 0.124 mW at 2.0 m/s.
Topics & Concepts
Wind powerVibrationMagnetMaterials scienceAcousticsPerpendicularPower (physics)Wind speedExcitationElectromagnetMaximum power principleEnergy (signal processing)Yoke (aeronautics)Mechanical energyMechanicsElectrical engineeringPhysicsMeteorologyEngineeringQuantum mechanicsFlight control surfacesAerodynamicsMathematicsGeometryInnovative Energy Harvesting TechnologiesEnergy Harvesting in Wireless NetworksWireless Power Transfer Systems