ارائه یک مبدل ایزوله تشدیدی دوسویه جدید جهت اتصال منبع ذخیره‌ساز چرخ طیار به شبکه‌های توزیع dc

نویسندگان

1 دانشکده مهندسی برق و کامپیوتر - دانشگاه شهید بهشتی

2 دانشکده مهندسی برق و کامپیوتر - دانشگاه شهید بهشتی- تهران

چکیده

با توجه به تقاضای روزافزون برای مصرف انرژی الکتریکی، نیاز به ذخیره‌سازی آن بیش از پیش احساس می‌شود. در راستای برآورد این نیاز تکنولوژی‌های مختلف ذخیره‌سازی انرژی فراهم آمد. در این میان، به منابع ذخیره‌ساز چرخ طیار به‌دلیل چگالی توان بالا و دینامیک سریع توجه خاصی شده است. در این مقاله یک ساختار جدید برای اتصال منابع چرخ طیار به شبکه‌های توزیع dc معرفی می‌شود. ازجمله ویژگی‌های این ساختار آن است که اولاً ولتاژ dc لینک بالایی را برای مدارات داریو موتور BLDC فراهم می‌آورد که این موضوع سبب افزایش انرژی قابل ذخیره‌سازی در منابع چرخ طیار می‌شود. ثانیاً، مبدل پیشنهادی دارای ساختار تشدیدی بوده که سبب افزایش راندمان مبدل و بهره برداری حداکثری از انرژی ذخیره‌شده در منابع چرخ طیار می‌شود. مبدل پیشنهادی یک مبدل دوسویه بوده تا بتوان شارژ و دشارژ منابع چرخ طیار را به‌کمک یک مبدل انجام داد.مدل‌سازی مبدل پیشنهادی در دو حالت عملکرد آن صورت می‌گیرد و با انجام شبیه‌سازی از عملکرد آن اطمینان حاصل می‌شود.

کلیدواژه‌ها

عنوان مقاله [English]

Introducing A New Isolated Resonant Bidirectional Converter for Connecting Flywheel Storage Systems to the dc Grids

نویسندگان [English]

  • M. Mahdavyfakhr 1
  • M. Hamzeh 1
  • A. Bozorgmehr 2
1 Faculty of Electrical and Computer Engineering, University of Shahid Beheshti, Tehran, Iran
2 Faculty of Electrical and Computer Engineering, University of Shahid Beheshti, Tehran, Iran
چکیده [English]

Different storage systems have developed as the key solution for the growing demand of electric power. To this aim, the flywheel storage systems are gaining a wide acceptance for their higher power density and fast dynamic response. In this paper, a novel power electronic topology is proposed for connecting the flywheel storage systems to the distribution systems. This topology provides high dc-link voltage for the power electronic circuit required for driving BLDC motors in flywheel. Consequently, larger power can be stored in flywheel storage system. Since, it is desired to fully exploit the stored energy in flywheel systems, the proposed topology have ZVS feature, which leads to increase of power conversion efficiency. Moreover, the proposed topology is a bidirectional converter for charging and discharging purposes.Also, when the converter is in discharging mode its output voltage remains constant with changes of load. The small signal and fundamental frequency analysis is performed to model the proposed converter. The converter is simulated in Matlab environment to validate its convincing performance.

کلیدواژه‌ها [English]

  • Isolated resonant bidirectional converter
  • flywheel storages
  • distribution grids
  • data centers

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