ارزیابی اقتصادی یک شبکه مستقل با کنترل داخلی شامل منابع انرژی پراکنده
محورهای موضوعی : مهندسی برق و کامپیوتر
محمدحسن مرادی
1
(دانشگاه بوعلی سینا همدان)
علی خندانی
2
(دانشگاه سمنان)
کلید واژه: مدیریت انرژی قابلیت اطمینان مباحث اقتصادی تولیدات پراکنده,
چکیده مقاله :
در اين مقاله 4 سناريوی تأمين انرژي مصرف‌كنندگان با استفاده از تابع هدف پیشنهادی با هم مقايسه گردیده و مناسب‌ترین روش تأمین انرژی مشخص شده است. 4 سناريوی تأمین انرژی عبارتند از: تأمين انرژي تنها به‌وسيله شبكه، شبكه و منابع توليد پراكنده، ريزشبكه به تنهايي و ريزشبكه متصل به شبكه بالادست. اين سناريوهاي تأمين انرژي در قالب دو حالت، بارها بر روي يك فيدر و بارها بر روي فيدرهاي مجزا محاسبه و با هم مقايسه مي‌شوند. تابع هدف پيشنهادي برای هر کدام از سناریوها داراي دو بعد اقتصادي و قابليت اطمينان است. بعد اقتصادي شامل هزينه ثابت و هزینه جاري تأمين انرژي و بعد قابليت اطمينان شامل انرژي تأمين‌نشده مصرف‌كنندگان مي‌باشد كه پس از تبديل تابع هدف به يك بعد با استفاده از برنامه‌ريزي خطي حل مي‌شود. روش پيشنهادي در اين مقاله با روش مشابه مقايسه شده كه نتايج نشان از كارآمدبودن و كاربردي‌تر بودن روش فوق دارد.
In this paper, four scenarios of energy supply for consumers are compared using the proposed objective function and the most appropriate energy methods have been identified. Four energy scenarios are: energy only by the network, the networks and distributed resources, micro-grid systems only and micro grid connected to the upstream network. The objective function for these energy scenarios are calculated and compared for two different load connections, all loads on one feeder and each load on individual feeders. Proposed objective function for each scenario consists of two dimensions, cost and reliability. Cost dimension includes constant cost, current cost and reliability dimension includes non delivered energy for consumers. After conversion into one dimension, the objective function is solved using linear programming. The proposed method in this paper compared with similar methods and these results demonstrate that the method in this paper is more efficient and practical.
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