پديد آورنده :
صادق خاني، ايمان
عنوان :
مديريت عملكرد ريز شبكه هاي اينورتري در طي و پس از وقوع خطاهاي اتصال كوتاه و اضافه بار
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
پانزده، [159]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
محمد اسماعيل همداني گلشن
استاد مشاور :
علي مهريزي ثاني، عباس كتابي
توصيفگر ها :
ريز شبكه اينورتري , اينورتر منبع ولتاژ , گذر از خطا , محدود كننده جريان خطا , قاب مرجع , تابع پايش گذرا , حفاظت ريز شبكه , آشكار سازي خطا , كمبود ولتاژ
استاد داور :
حسن منصف، حميدرضا كارشناس، محمد امين لطيفي
تاريخ ورود اطلاعات :
1395/11/10
رشته تحصيلي :
برق و كامپيوتر
دانشكده :
مهندسي برق و كامپيوتر
كد ايرانداك :
ID980 دكتري
چكيده انگليسي :
Management of inverter based microgrids performance during and after short circuit and overload faults Iman Sadeghkhani i sadeghkhani@ec iut ac ir January 10 2017 Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 IranSupervisor Prof Mohamad Esmail Hamedani Golshan hgolshan@cc iut ac ir1st Adviser Dr Ali Mehrizi Sani mehrizi@eecs wsu edu2nd Adviser Dr Abbas Ketabi aketabi@kashanu ac ir Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 Iran School of Electrical Engineering and Computer Science Washington State University Pullman WA 99164 2752 USA Department of Electrical Engineering University of Kashan Kashan 87317 51167 IranAbstractWith high penetration of distributed energy resources DER fault management strategy is of great importance for thedistribution network operation The ability of riding through the grid disturbances can facilitate the integration of highpenetration level of microgrids into the distribution system Consequently a grid connected microgrid should provideancillary services such as fault ride through FRT capability and reactive power support to sustain power system operationduring abnormal grid conditions DERs should be also stayed connected into the islanded microgrid during various faultconditions The goals of this dissertation are to propose FRT strategies for grid connected inverter based microgrids byproviding the reactive power support and for islanded inverter based microgrid by implementing a current limiting strategy Also a fault detection strategy based on monitoring the transient response of the inverter current is proposed for islandedmicrogrids The effects of adopted reference frame current limiting strategy and inverter topology three four leg areconsidered in the studies of this dissertation Several case studies using the CIGRE benchmark low voltage microgridnetwork are presented to verify the effectiveness of the proposed schemes Key Words Microgrid Voltage sourced converter VSC Fault ride through FRT Current limit ing Transient monitoring function TMF Fault detection IntroductionIn recent years the penetration of distributed energy resources DER as a solution for al leviating the economical technical and environmental concerns has increased Olivares etal 2014 The main advantages of the electronically coupled DER units commonly in terfaced using a droop controlled voltage sourced converter VSC are their flexibility inproviding controlled and high quality power Zamani et al 2012 With high penetrationof distributed energy resources and microgrids keeping them connected into the utility gridis of great importance for sustaining power system operation during various grid voltagesags swells Zhao 2016 DERs should be also stayed connected into the islanded microgridduring various fault conditions Thus the main goal of this dissertation is to manage both
استاد راهنما :
محمد اسماعيل همداني گلشن
استاد مشاور :
علي مهريزي ثاني، عباس كتابي
استاد داور :
حسن منصف، حميدرضا كارشناس، محمد امين لطيفي
