کاهش تلفات توان و بهبود پروفیل ولتاژ در فیدرهای شبکه توزیع: مطالعه موردی در ایران
محورهای موضوعی : مهندسی برق قدرت
1 - دانشکده مهندسي برق، دانشگاه تفرش، تفرش، ايران
2 - دانشکده مهندسي برق، دانشگاه تفرش، تفرش، ايران
کلید واژه: تلفات توان, پروفیل ولتاژ, ارزیابی اقتصادی, منابع تولید پراکنده,
چکیده مقاله :
با توجه به نقش مهم انرژي الكتريكي در رشد و توسعه اقتصادي و اجتماعي و صرف هزينه‌هاي سنگين براي سرمايه‌گذاري در صنعت برق به ویژه شبکه‌های توزيع، وجود راهكارهاي عملي كاهش تلفات در جهت افزايش بهره‌وري امكانات موجود كاملا ضروري مي‌باشد. این مقاله، تاثیر تمامی روش‌های موجود بر کاهش تلفات و بهبود پروفیل ولتاژ از نقطه نظر فنی و اقتصادی به طور همزمان در یک شبکه واقعی را مورد بررسی و مقایسه قرار داده است. همچنین به منظور دست یابی به جواب‌های دقیق‌تر، اثر عدم قطعیت‌های موجود در منابع تولید پراکنده و بارهای شبکه با استفاده از روش تولید سناریو نیز در نظر گرفته شده است. بررسی تمام روش‌های ممکن به منظور یافتن ظرفیت و مکان بهینه تجهیزات به عنوان الگورتیم حل مسئله در نظر گرفته شده است. پیش بینی بار برای بررسی کارآیی روش‌های ارائه شده برای سال‌های آتی در نظر گرفته شده است. همچنین ایده‌ای مبنی بر تزریق توان راکتیو توسط نیروگاه خورشیدی در نظر گرفته شده است و با حالت نیروگاه خورشیدی بدون تزریق توان راکتیو مقایسه شده است. روش‌های پیشنهادی بر روی پنج فیدر واقعی شبکه توزیع ایران با تلفات توان بالا با استفاده از نرم افزار دیگسایلنت و زبان برنامه نویسی پایتون شبیه سازی شده است. نتایج شبیه سازی نشان می‌دهند که جایابی بهینه نیروگاه خورشیدی با تزریق توان راکتیو از لحاظ فنی، بهترین کارایی و خازن گذاری از لحاظ اقتصادی بیشترین بازدهی را دارا می‌باشد.
Considering the significant role of electrical energy in economic and social development, as well as the substantial investments in the power industry, particularly in distribution networks, practical strategies to reduce losses and enhance the efficiency of existing facilities are essential. This paper investigates and compares the impact of all available methods on loss reduction and voltage profile improvement from both technical and economic perspectives on a real network. Additionally, to achieve more accurate results, the uncertainties in distributed generation resources and network loads are accounted for using scenario generation methods. The study evaluates all possible methods to determine the optimal location and capacity of equipment as the problem-solving algorithm. Load forecasting is incorporated to assess the effectiveness of the proposed methods for future years. Furthermore, a novel idea of reactive power injection by a solar power plant is considered and compared with the case of a solar power plant without reactive power injection. The proposed methods are simulated on five real high-loss distribution feeders in Iran using DIgSILENT software and Python programming. The simulation results indicate that the optimal placement of a solar power plant with reactive power injection provides the best technical performance, while capacitor placement offers the highest economic efficiency.
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