| Recently the problem of energy and pollution has become the worldfocus.The renewable energy is the important development of orientation ofenergy utilization for the future world.Solar and wind energy is widely used inthe world,and they have highly complementary with each other.Super capacitor is a new energy device which has high powerdensity, high current fast charge and discharge, long cycle life and excellentcharacteristics.It has become a new type of energy storage device.Combine all those,this thesis designed an Wind/Solar hybrid generationintelligent management system which use super capacitor to completethe battery charging of "cut peak and fill valley" effect,and also make a moreefficient system.First the thesis discussed Serial and parallel work mode of Battery andsuper capacitor,and designed the scheme of energy storage.The MCU in thissystem used STM32F103series those product by Stmicroelectronics.Thecomputer system is based on the VC++6.0platform,and has Displayand storage functions.This system mainly includes DC/DC transforms andsuper capacitor,also has an Bidirectional DC/DC transform which match supercapacitor.DC/DC transforms complete solar and wind power maximum powercontrol.The bidirectional DC/DC transform complete the charge and dischargework of super capacitor efficiently.This thesis also introduced a variety of solarand wind power generation control strategy,and several methods of the MPPTstrategy.And introduced the charging and discharging control strategies ofeach part of this system.Finally this thesis gave the test result.Test result show that super capacitorhas "cut peak and fill valley" effect on battery charging,and can improvesystem energy conversion efficiency efficiently. |
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