میرایی تشدید فیلتر LCL با روش فیدبک جریان خازن تناسبی انتگرالی برای انتقال توان سلول سوختی به شبکه فشار ضعیف

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی برق، دانشگاه محقق اردبیلی، اردبیل، ایران

2 گروه مهندسی برق، دانشکده فنی مهندسی، دانشگاه محقق اردبیلی، اردبیل، ایران

چکیده
سلول‌های سوختی در سیستم‌های تولید پراکنده (DG) به دلیل مزایای زیست محیطی و عملکردی بسیار مورد توجه قرار گرفته‌اند. برای اتصال سلول‌های سوختی به شبکه از مبدل‌های الکترونیک قدرت استفاده می‌شود. اینورترهای قدرت به دلیل کلیدزنی PWM و تاخیرهای کنترلی آن دارای هارمونیک‌های فرکانس بالا هستند. برای حذف این هارمونیک‌ها از فیلترهای LCL استفاده می‌شود. تغییرات امپدانس شبکه باعث تغییر فرکانس تشدید فیلترهای LCL می‌شود و ممکن است باعث ناپایداری سیستم شود. برای تضعیف تشدید فیلترهای LCL از روش‌های میرایی فعال استفاده می‌شود. در این مقاله از یک سلول سوختی برای تزریق توان به شبکه از طریق اینورتر قدرت و فیلتر LCL استفاده شده است. در این مقاله از یک سلول سوختی برای تزریق توان به شبکه از طریق اینورتر قدرت و فیلتر LCL استفاده شده است. فیدبک جریان خازن تناسبی انتگرالی برای میرایی تشدید فیلتر LCL بکار رفته است. برای بررسی صحت عملکرد روش پیشنهادی نتایج شبیه‌سازی با استفاده از نرم‌افزار MATLAB/Simulink ارائه شده است. نتایج شبیه‌سازی نشان می‌دهد روش پیشنهادی در برابر تغییرات امپدانس شبکه همچنین تغییرات مربوط به پارامترهای سلول سوختی پایدار است و عملکرد مطلوبی را ارائه می‌کند.

کلیدواژه‌ها

موضوعات


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  • تاریخ دریافت 06 تیر 1402
  • تاریخ بازنگری 10 مرداد 1403
  • تاریخ پذیرش 26 مهر 1403