کنترل هوشمند سیستم جبران‌کننده استاتیکی فتوولتائیک بر پایه منطق فازی به‌منظور بهبود پایداری ولتاژ

الموضوعات :

علی دلیریان ¹ , علیرضا صولت ² , سید محمد جواد رستگار فاطمی ³

1 - گروه مهندسي برق، دانشکده مهندسي برق، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران
2 - گروه مهندسي برق، دانشکده مهندسي برق، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران
3 - گروه مهندسي برق، دانشکده مهندسي برق، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران

تاريخ الإرسال : 29 الأحد , جمادى الثانية, 1444 تاريخ التأكيد : 02 السبت , شوال, 1444 تاريخ الإصدار : 20 الأربعاء , شعبان, 1446

الکلمات المفتاحية: پایداری ولتاژ, سیستم فتوولتائیک, کنترل هوشمند, حالت جبران‌کننده استاتیکی,

ملخص المقالة :

این مقاله یک کنترل فازی جدید برای سیستم فتوولتائیک مبتنی بر جبران کننده سنکرون استاتیکی (PVSTATCOM) به منظور بهبود پایداری ولتاژ پیشنهاد می‌کند. سیستم پیشنهادی وظیفه کنترل ولتاژ دینامیکی سیستم خورشیدی PV متصل شده به باس بار را در حالت های عملیاتی مختلف به عنوان STATCOM و/یا تولید توان اکتیو PV بر عهده دارد. در این استراتژی، هنگام بروز اختلال، کنترل کننده فازی پیشنهادی با تشخیص آن و با توجه به شدت اغتشاش، در صورت عدم وجود یا ناکافی بودن ظرفیت باقیمانده اینورتر برای جبران سازی توان راکتیو، تولید توان اکتیو سیستم خورشیدی را متوقف می‌کند و از اینورتر آن به طور کامل به عنوان STATCOM، برای تنظیم ولتاژ در باس بار، استفاده می‌کند. پس از رفع اختلال، سیستم به حالت تولید توان اکتیو مانند قبل از اختلال باز می‌گردد. برای ارزیابی عملکرد کنترل‌کننده فازی پیشنهادی، حالت‌های مختلفی با نرم افزار EMTDC/PSCAD شبیه‌سازی شده‌اند تا توانایی کنترل‌کننده برای بهبود پایداری سیستم قدرت را به اثبات برسانند. نتایج تأیید می‌کند که PV- STATCOM با کنترل کننده پیشنهادی می‌تواند عملکرد دینامیکی سیستم را بهبود بخشد.

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