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تحلیل عملکرد ریزشبکه DC بهصورت ماشین سنکرون مجازی در کنترل فرکانس و ولتاژ شبکه | ||
هوش محاسباتی در مهندسی برق | ||
مقاله 3، دوره 12، شماره 1، فروردین 1400، صفحه 15-36 اصل مقاله (2.45 M) | ||
نوع مقاله: مقاله پژوهشی فارسی | ||
شناسه دیجیتال (DOI): 10.22108/isee.2020.123025.1382 | ||
نویسندگان | ||
فرزانهَ شورکشتی1؛ مهدی بانژاد* 2؛ محمد حسین تبار مرزبالی3؛ علی اکبرزاده کلات2 | ||
1دانشجویکارشناسیارشددانشکده برق و رباتیک ـ دانشگاه صنعتیشاهرودـ شاهرودـ ایران | ||
2دانشیار دانشکده برق و رباتیک ـ دانشگاه صنعتی شاهرودـ شاهرودـ ایران | ||
3استادیار دانشکده برق و رباتیک ـ دانشگاه صنعتی شاهرودـ شاهرودـ ایران | ||
چکیده | ||
در سالهای اخیر با توجه به بحرانهای زیستمحیطی و کمبود منابع فسیلی، استفاده از منابع تجدیدپذیر شایان توجه است. استفاده از منابع تجدیدپذیر در سیستم قدرت، تولید را غیرمتمرکز کرده و با توجه به طبیعت متغیر این منابع، نوسانات زیادی در شبکه اضافه شدهاند. ریزشبکههای DC بهعنوان شبکۀ قدرت کوچک، امکان استفاده و کنترل این منابع را در سمت توزیع آسان کردهاند. نفوذ زیاد منابع تجدیدپذیر مبتنی بر مبدلهای الکترونیک قدرت، اینرسی و میرایی را کاهش دادهاند؛ بنابراین، سیستمهای جدید به اغتشاشات حساستر شدهاند و حاشیۀ پایداری سیستم کاهش یافته است. در این مقاله از ریزشبکه DC متصل به شبکه AC مجهز به ماشین سنکرون مجازی بهمنظور مدیریت توان خودکار ریزشبکه DC و شبکه AC و تحلیل نقش اینرسی مجازی در پایداری سیگنال کوچک استفاده شده است. شبکه تحت حالتها و اینرسیهای مختلف برای تأیید روش مذکور بررسی و تأیید شده است. در این روش با استفاده از پاسخ مبدل منبع ولتاژ و با طراحی مناسب کنترل افتی دوگانه کنترلکنندههای ولتاژ، فرکانس و توان اکتیو خروجی، پشتیبانی لازم برای تنظیم فرکانس سیستم در مواجهه با اغتشاشات فراهم میشود و پایداری شبکه در شرایط مختلف بهبود مییابد. | ||
کلیدواژهها | ||
ماشین سنکرون مجازی؛ ریزشبکه DC؛ اینرسی مجازی؛ مبدل منبع ولتاژ؛ کنترل افتی دوگانه | ||
مراجع | ||
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