جایابی و تعیین اندازه بهینه خازنها و منابع تولید پراکنده با هدف بهبود قابلیت اطمینان و حداقل نمودن تلفات در شبکههای توزیع
- مهندس فریبرز حقیقت دار فشارکی
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جایابی و تعیین اندازه بهینه خازنها و منابع تولید پراکنده با هدف بهبود قابلیت اطمینان و حداقل نمودن تلفات در شبکههای توزیع
نوع مقاله: مقاله پژوهشی
نویسندگان
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
موضوعات
عنوان مقاله [English]
Optimal placement and sizing of distributed generations and capacitors for reliability improvement and power loss minimization in distribution networks
نویسندگان [English]
- Majid Salari
- Fariborz Haghighatdar Fesharaki
Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
چکیده [English]
Optimal placement and sizing of equipment in engineering systems is one of the most important and challenging practical problems. Installation of capacitors and distributed generations (DGs) in distribution systems has many benefits, such as improving the reliability as well as reducing the power loss, however, includes high investment costs. Hence, the maximum use of these benefits highly depends on choosing suitable locations for installation. In this paper, the Success Rate Group Search Algorithm (SRGSO) is used for optimal placement and sizing of DG sources and capacitor banks simultaneously in distributed systems. The used objective function includes costs of Expected interruption (ECOST), Energy Not Supplied (ENS), active power losses and DG and capacitor investment, operation and maintenance. To evaluate the effectiveness of the proposed algorithm in finding the optimal solution, various capacitor and DG placement scenarios are simulated on the IEEE 33-bus radial distribution test system. The simulation results show that the proposed method is more effective and has higher capability for solving the problem of capacitor and DG placement, compared to previously proposed methods. Using the proposed method in this paper, the value of active power losses as well as bus voltage profile are improved more than other investigated methods.
کلیدواژه‌ها [English]
- Optimal placement
- Capacitor Bank
- Distributed Generation (DG)
- reliability
- SRGSO Algorithm
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