پديد آورنده :
مهدوي مزده، محمد
عنوان :
كاهش تلفات هدايتي و كليد زني در مبدلهاي اصلاح ضريب توان افزاينده-كاهنده
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
دوازده،130ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
حسين فرزانه فرد
توصيفگر ها :
كليد زني نرم , مبدل اصلاح ضريب توان بدون پل , مبدل هاي روزنانسي , محدوده وسيع ورودي
تاريخ نمايه سازي :
9/10/92
استاد داور :
محمدرضا ذوالقدري، مصطفي محمديان، احمدرضا تابش
دانشكده :
مهندسي برق و كامپيوتر
كد ايرانداك :
ID584 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Reducing conduction and switching losses in buck boost power factor correction circuits Mohammad Mahdavi Mazdeh adib ehsan@gmail com September 18 2013 Department of Electrical and Computer EngineeringIsfahan University of Technology Isfahan 84156 83111 IranSupervisor Hosein Farzanehfard hosein@cc iut ac irAdvisor Ehsan Adib e adib@cc iut ac irDepartment Graduate Program Coordinator Masoud Omoomi Isfahan University of Technology Isfahan 84156 83111 Iran Isfahan University of Technology Isfahan 84156 83111 IranAbstract Recently rectifiers with capacitive loads connected to the network in order to supplyelectronic devices have increased Since these rectifiers are nonlinear loads they injectunwanted harmonics into network system These harmonics create sever problems for thenetwork Therefore different standards are established to reduce these undesirable effects One method to reduce current harmonics is to place a PFC Power Factor Correction converter after the rectifier to improve power factor Conventional PFC converters havehigher conduction Losses than regular rectifiers For reducing conduction losses the PFCblock must be combined with the DC DC regulator or rectifier and the resulting convertersare called single stage PFC and bridgeless PFC respectively The most conventional PFCconverter is the boost converter Boost type PFC converters suffer from many drawbackslike inrush current output high voltage and etc To overcome these problems other basicconverters like SEPIC Cuk buck and buck boost are applied In this dissertation fourfamilies of bridgeless PFC converters to reduce volume and weight while increasingefficiency are proposed Key Words Power factor correction Soft switching Buck and boost converter Bridgeless PFC Resonant converter Universal Applications
استاد راهنما :
حسين فرزانه فرد
استاد داور :
محمدرضا ذوالقدري، مصطفي محمديان، احمدرضا تابش
