جایابی و تعیین اندازه بهینه خازن‎ها و منابع تولید پراکنده با هدف بهبود قابلیت اطمینان و حداقل نمودن تلفات در شبکه‎های توزیع

روش‌های هوشمند در صنعت برق

دوره 11، شماره 43، آبان 1399، صفحه 83-94   

نوع مقاله: مقاله پژوهشی

نویسندگان

مجید سالاری؛ فریبرز حقیقت دار فشارکی^*

دانشکده مهندسی برق- واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

چکیده

مسأله جایابی و تعیین اندازه بهینه تجهیزات در سیستم‎های مهندسی یکی از مهمترین و پرچالش‎ترین مسایل کاربردی است. نصب خازن و منابع تولید پراکنده ( DGها)در سیستم‎های توزیع مزایای زیادی همچون بهبود قابلیت اطمینان و کاهش تلفات توان را در پی خواهد داشت. البته هزینه‎های سرمایه‎گذاری بالایی را هم در بر دارد. درنتیجه استفاده حداکثری از این مزایا تا حد زیادی منوط به انتخاب مکان مناسب جهت نصب آن‎ها است. در این مقاله از الگوریتم جستجوی گروهی با نرخ موفقیت برای جایابی همزمان DG و خازن در سیستم­ توزیع شعاعی استفاده شده است. تابع هدف مورد استفاده شامل هزینه­های مربوط به وقفه قابل انتظار مشتری (ECOST)، انرژی تامین نشده (ENS)، تلفات توان اکتیو سیستم و هزینه سرمایه­گذاری، تعمیر و نگهداری بانک خازنی و DG است. به­منظور ارزیابی اثربخشی الگوریتم پیشنهادی در یافتن جواب بهینه، سناریوهای مختلف نصب DG و خازن در محیط نرم افزار MATLAB R2014a در سیستم توزیع شعاعی 33 شینه استاندارد IEEE  شبیه­سازی شده است. نتایج شبیه‎سازی نشان می‎دهد روش پیشنهادی در مقایسه با روش­های ارائه شده قبلی، قابلیت و توانایی بالایی در حل مسأله جایابی خازن و DG دارد. با استفاده از روش پیشنهادی در این مقاله، مقادیر تلفات توان اکتیو و پروفایل ولتاژ باس­ها نسبت به سایر روش­های بررسی شده، بهبود یافته است.

کلیدواژه‌ها

جایابی بهینه؛ بانک خازنی؛ منابع تولید پراکنده؛ قابلیت اطمینان؛ الگوریتم جستجوی گروهی بهبودیافته

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