طراحی و پیاده سازی یک مبدل غیر ایزوله چند درگاهه با بهره ولتاژ بالا

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی برق، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

2 مرکز تحقیقات ریز شبکه های هوشمند، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

چکیده

امروزه آرایه‌هایی خورشیدی‌‌‌، پیل‌های سوختی و انرژی باد به عنوان منابع انرژی پاک بسیار مورد توجه قرار گرفته‌اند‌‌. این منابع می‌توانند انرژی خود را به شبکه برق و یا به طور مستقیم به مصرف کننده تحویل‌ دهند‌. معمولا سطح ولتاژ تولیدی در این منابع، پایین و نیاز به افزایش سطح ولتاژ می‌باشد. برای حل این مشکل می‌توان از مبدل‌های بهره ولتاژ بالا به صورت یک درگاهه و چند درگاهه استفاده نمود. در مبدل پیشنهادی برای افزایش بهره ولتاژ، از مدار چند برابر کننده ولتاژ‌‌، سلف‌های تزویج و خازن سوئیچ شده و همچنین برای رفع مشکل انرژی ذخیره شده در سلف نشتی، از مدار کلمپ استفاده می‌شود. ‌‌یکی از ویژگی‌های این مبدل به اشتراک گذاشتن اجزای مبدل در حالت‌های مختلف می‌باشد این مهم برای کاهش تعداد عناصر نیمه‌ هادی در ساخت مبدل‌ به حساب می‌آید. در مبدل پیشنهادی انتقال توان می‌تواند از آرایه خورشیدی به بار و یا از آرایه خورشیدی به باتری و یا هر دو باشد. همچنین در لحظات پیک مصرف آرایه خورشیدی و باتری می‌توانند توان بار را همزمان تامین کنند‌. در این مقاله برای بررسی نحوه عملکرد مبدل‌های پیشنهادی از تحلیل‌های نظری استفاده شده است و برای بررسی صحت تحلیل‌های نظری نتایج شبیه ‌سازی مبدل در نرم افزار ارکد ارائه شده است. سرانجام یک نمونه‌ی آزمایشگاهی از مبدل پیشنهادی در توان‌ 200 وات و فرکانس‌100 کیلو‌هرتز ‌پیاده سازی گردیده است که نتایج بدست آمده صحت تحلیل تئوری و عملکرد مبدل پیشنهادی را نشان می‌دهد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Design and implementation of a non-isolated multi-port converter with high voltage gain

نویسندگان [English]

  • Moein Shahsavari 1
  • Sayyed Mohammad Mehdi Mirtalaei 2
1 Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
2 Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
چکیده [English]

Today, solar arrays, fuel cells and wind energy are highly regarded as sources of clean energy. These sources can deliver their energy to the grid or directly to the consumer. Usually the voltage level produced in these sources is low and the need to increase the voltage level is. To solve this problem, high voltage gain converters can be used as single-port and multi-port. In the proposed converter to increase the voltage gain, the voltage multiplier circuit, the switched inductors and the switched capacitor are used, and also the clamp circuit is used to solve the problem of energy stored in the leakage inductor. One of the features of this converter is to share the components of the converter in different modes. This is important to reduce the number of semiconductor elements in the construction of the converter. In the proposed converter, the power transfer can be from solar array to load or from solar array to battery or both. Also, in peak moments, solar array and battery consumption can provide load power at the same time. In this paper, theoretical analysis has been used to evaluate the performance of the proposed converters and the results of the converter simulation in Orcad software have been presented to evaluate the accuracy of the theoretical analysis. Finally, a laboratory sample of the proposed converter with a power of 200 watts and a frequency of 100 kHz has been implemented,

کلیدواژه‌ها [English]

  • Three Port Converter
  • high step up converter
  • Hybrid Power Source
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