پديد آورنده :
مولوي، مهدي
عنوان :
كاهش ريپل گشتاور در موتور رلوكتانس سوئيچ شونده با استفاده از روش كنترل مود لغزشي و كنترل فازي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان ، دانشكده برق و كامپيوتر
صفحه شمار :
ده، 86، [II] ص: مصور ، نمودار، جدول
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
مرتضي سقائيان نژاد
استاد مشاور :
محمد ابراهيمي
توصيفگر ها :
اندوكتانس خطي , كموتاسيون , آتش فازي
تاريخ نمايه سازي :
8/5/86
دانشكده :
مهندسي برق و كامپيوتر
چكيده فارسي :
به فارسي و انگليسي : قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Abstract In recent years and with rapid development of power electronic elements andintroduction of new power electronic switches electrical motor control has developedsignificantly Conventional machines can function properly in the absence of power electroniccontrol but unconventional machines such as switched reluctance motors synchronousreluctance motors and stepper motors may realize all their capabilities only in presence ofpower electronic equipments Switched reluctance motors SRM s are unconventional machines which have foundincreasing applications because of their numerous advantages These motors also have anumber of disadvantages the most important of which is high output torque ripple Thisproblem is caused by uncontinuous mechanism of torque production Furthermore otherfactors such as phase change and highly nonlinear behavior of this machine causes a highlyripply torque Torque ripple causes audioable noise as well as mechanical destruction In this thesis first a 8 6 four phase switched reluctance motor with linear inductanceand control with reference current and hystersis band is simulated Torque ripple caused byimproper overlap of adjacent switched phases is controlled via adjusting turn on and offangles using a fuzzy logic controller This method is applied to a motor with nonlinearinductance and magnetic saturation to observe whether it can compensate nonlinear effecton the torque ripple or not Then phase inductance is estimated as a nonlinear function ofcurrent and rotor position and torque is achieved only with a reference current with nocontroller In the end sliding mode control which is a variable structure control method isapplied to model and results are compared with previous controller fuzzy and advantagesand disadvantages of each of control methods is discussed
استاد راهنما :
مرتضي سقائيان نژاد
استاد مشاور :
محمد ابراهيمي
