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ارائه یک مبدل dc-dc جدید بدون ترانسفورماتور با بهره ولتاژ بهبودیافته | ||
مجله مهندسی برق دانشگاه تبریز | ||
مقاله 7، دوره 46، شماره 3 - شماره پیاپی 77، آذر 1395، صفحه 59-71 اصل مقاله (4.18 M) | ||
نویسندگان | ||
محمدرضا بنائی* ؛ حسین اژدر فائقی بناب | ||
دانشگاه شهید مدنی آذربایجان | ||
چکیده | ||
چکیده: در این مقاله یک مبدل dc-dc بدون ترانسفورماتور با ضریب بهره بالا و تنش ولتاژ پائین در دو سر کلید فعال پیشنهاد میشود. در این مبدل تنها یک کلید فعال به کار رفته است، لذا کنترل مبدل پیشنهادی ساده بوده و تلفات هدایتی کلید فعال نیز پائین است. بهره ولتاژ مبدل پیشنهادی در مقایسه با مبدل افزاینده مرسوم بالاتر بوده و مبدل پیشنهادی ناحیه کاری رژیم هدایت پیوسته را گسترش میدهد. مبدل پیشنهادی دارای تنش ولتاژ پائین در دو سر کلید فعال است که باعث کاهش تلفات هدایتی میشود. مبدل پیشنهادی میتواند در دو رژیم هدایت پیوسته و ناپیوسته کار کند. در این مقاله مدهای کاری مختلف مبدل پیشنهادی، محاسبات مربوط به بهره، جریانهای عبوری از عناصر، بازده و اندازه ریپل ولتاژ خازنها ارائه میشود. برای اثبات عملکرد صحیح مبدل پیشنهادی نتایج شبیهسازی در محیط نرمافزار PSCADو نتایج عملی نیز ارائه میشود. | ||
کلیدواژهها | ||
مبدلdc-dc بدون ترانسفورماتور؛ افزاینده مرسوم؛ بهره ولتاژ | ||
مراجع | ||
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