روشی جامع برای مدل سازی عمومی فضای حالت مبدل های چندسطحی متوالی متصل به شبکه

روش‌های هوشمند در صنعت برق

مقاله 3، دوره 13، شماره 52، اسفند 1401، صفحه 33-52   

نوع مقاله: مقاله پژوهشی

نویسندگان

حسن منافی میرعلیلو¹؛ مهدی سلیمی^{* 1}؛ جعفر سلطانی²؛ عادل اکبری مجد³

¹دانشکده مهندسی برق- واحد اردبیل، دانشگاه آزاد اسلامی، اردبیل، ایران

²دانشکده مهندسی برق و کامپیوتر- دانشگاه صنعتی اصفهان، اصفهان، ایران

³دانشکده فنی و مهندسی- دانشگاه محقق اردبیلی، اردبیل، ایران

چکیده

در این مقاله برای مدل‌سازی فضای حالت عمومی مبدل چند‌سطحی سری متصل به شبکه، روشی جامع پیشنهاد شده است. در اینورترهای چند‌سطحی به دلیل غیر‌خطی بودن رفتار آنها، برای تضمین پایداری سیستم در حوزه کاری وسیع استفاده از کنترل­کننده غیر‌خطی اجتناب ناپذیر است. برای همین منظور مدل‌سازی فضای حالت جهت طراحی این نوع کنترل­کننده­ها لازم است. مدل پیشنهاد شده برای حالت کلی مبدل با تعداد n پل ارائه شده است. برای راستی آزمایی مدل فضای حالت به­دست آمده، یک نمونه آزمایشگاهی از مبدل چند‌سطحی با دوپل طراحی و ساخته شده و نتایج مربوط به شبیه‌سازی مدل فضای حالت به­دست آمده با نتایج شبیه‌سازی مبدل متصل به شبکه و نتایج عملی مقایسه شده است. مقایسه نتایج نشان‌دهنده درستی عملکرد مدل است. همچنین شبیه‌سازی­های مربوطه توسط نرم­افزار تخصصی EMTDC/PSCAD انجام یافته است.

کلیدواژه‌ها

اینورتر چند‌سطحی؛ کنترل غیر‌خطی؛ مبدل‌های پل H؛ مدل فضای حالت

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