پديد آورنده :
صلح جو، مجتبي
عنوان :
بررسي يك منبع جريان DC_DC براي پيل هاي سوختي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
﴿الكترونيك﴾
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
يازده، 135،[II] ص: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
حسين فرزانه فرد
استاد مشاور :
حميد رضا كارشناس
توصيفگر ها :
پردازشگر سوخت , اينورتر , توزيع AC , ترانسفورمر كمكي , شيفت فاز
استاد داور :
سيد مسعود سيدي، محمد مدني
دانشكده :
مهندسي برق و كامپيوتر
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract Declining fossil fuels and their destructive effects on the environment has made itnecessary to select a suitable inexpensive and clean fuel replacement Fuel cells are mostadaptable choices where fossil fuels are used for producing electrical energy specially athigh powers Similar to batteries fuel cells are electrochemical devices that convertchemical energy produced from a chemical reaction to electrical energy Unlike internalcombustion engines conversion of energy in fuel cells is direct conversion of chemicalenergy to electrical energy and therefore is very efficient The side products of thisconversion are vapour and heat The generated water and heat can be used for regeneratingelectricity in a fuel cell system in order to further increase efficiency In some fuel cells the efficiency can be increased to about 85 percent Recently fuel cells are used as electrical sources for transportation power plants factories military applications etc However V I characteristic of fuel cells stack showslow voltage output of fuel cells and severe drop of its voltage due to increased load current Therefore in order to connect fuel cells to AC and DC loads an interface circuit is neededto increase and regulate its output voltage Till now a number of current and voltagesource switching converters are designed and implemented for fuel cells But generally important features like decreasing volume weight price and also low frequency currentripple at the output is neglected Current source converters are obviously suitable choicessince the fuel cell efficiency are decreased due to its output frequency current ripple Softswitching in converters decreases switching dissipation and thus increases efficiency In addition increasing switching frequency will lead to smaller circuit volume Experimental results of the proposed current source converter justify analytical analysisand simulation results
استاد راهنما :
حسين فرزانه فرد
استاد مشاور :
حميد رضا كارشناس
استاد داور :
سيد مسعود سيدي، محمد مدني
