مدیریت انرژی ریزشبکه‌ها و جبران‌سازی هارمونیک آنها از طریق فیلتر اکتیو موازی مبتنی برسیستم‌های چندعاملی
الموضوعات :
محمدرضا صالحی راد
1
(دانشگاه شهید باهنر کرمان)
محمد ملایی امام زاده
2
(دانشگاه شهید باهنر کرمان)
الکلمات المفتاحية: جبران‌سازی هارمونیکی جریان, سیستم‌های چندعاملی, فیلتر اکتیو موازی, فیلتر پسیو SC-RC-LCL, مدیریت انرژی,
ملخص المقالة :
در این مقاله با استفاده از فیلتر اکتیو موازی، یک استراتژی جدید مدیریت انرژی در ساختار چندعاملی ارائه می‌شود. این استراتژی به یک ریزشبکه AC متصل به شبکه اعمال گردیده و مسأله جبران‌سازی هارمونیکی را نیز شامل می‌شود. با بررسی مزایا و معایب فیلترهای اکتیو موازی و فیلترهای پسیو و همچنین کارایی آنها در ساختار چندعاملی برای ریزشبکه‌های قدرت، علت استفاده از فیلتر اکتیو موازی در روش پیشنهادی مشخص شده است. همچنین عملکرد این فیلترها جهت جبران‌سازی هارمونیک‌های جریان با بررسی نتایج FFT مورد مقایسه قرار گرفته است. در ریزشبکه مورد استفاده از مولد توربین بادی و مولد سلول‌های خورشیدی به عنوان منابع تجدیدپذیر و برای جبران تغییرات ناگهانی و برنامه‌ریزی‌نشده در توان تولیدی این دو مولد، دو پیل سوختی استفاده می‌شود. واحد مدیریت انرژی با توجه به توان تولیدی و توان مصرفی ریزشبکه، وضعیت فعال و غیرفعال‌بودن دو پیل سوختی را به نحوی مدیریت می‌کند که توان تبادل‌شده بین ریزشبکه و شبکه اصلی در بازه قابل قبولی محدود باشد. نتایج شبیه‌سازی نشان می‌دهند که روش پیشنهادی با استفاده از کنترل‌کننده‌های پیوسته محلی (در هر عامل) و کنترل‌کننده گسسته مرکزی (سیستم مدیریت انرژی) توانسته که عملکرد مناسبی داشته باشد و ضمن تأمین توان مورد نیاز ریزشبکه، هم‌زمان مسأله جبران‌سازی هارمونیک‌های جریان را به درستی انجام دهد.
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