محاسبه تاثیر واحدهای تولید پراکنده و اتفاقات شبکه توزیع بر شاخص‌های قابلیت اطمینان سطح تولید

نوع مقاله : مقاله پژوهشی (توسعه ای)

نویسنده

عضو هیئت علمی، گروه مهندسی برق، دانشگاه فنی و حرفه‌ای، تهران، ایران.

چکیده

افزایش نصب منابع تولید پراکنده در شبکه قدرت علاوه بر تأثیراتی مانند کاهش تلفات شبکه، بهبود پروفیل ولتاژ، افزایش قابلیت اطمینان و ... که بر شبکه توزیع بر جای می‌گذارد، می‌تواند قابلیت اطمینان سطح تولید را نیز به‌طور غیرمستقیم تحت تأثیر قرار دهد. اما برخلاف شبکه انتقال که در هنگام مطالعات قابلیت اطمینان سطح HLI کاملاً قابل اطمینان فرض می‌گردد، شبکه توزیع که دربردارنده‌ بخش اعظم ظرفیت تولید پراکنده‌ شبکه قدرت است، دارای اتفاقات زیاد، سطوح پایین‌تر اتوماسیون و ساختاری شعاعی است که می‌تواند منجر به حبس ظرفیت تولید این واحدها گردد؛ از این رو در این مقاله روشی ارائه شده است تا با استفاده از آن نرخ خروج اجباری واحدهای تولید پراکنده و اتفاقات شبکه توزیع با یکدیگر تلفیق و در قالب «نرخ خروج اجباری معادل» ظاهر گردد تا از آن بتوان برای معادل‌سازی این واحدها در شینه‌ فوق‌توزیع و مشارکت دادن آن‌ها در تشکیل جدول COPT برای استفاده شاخص‌های قابلیت اطمینان سطح HLI استفاده کرد. روش ارائه شده، رویکردی Single Contingency به اتفاقات شبکه توزیع دارد و به همین دلیل در قیاس با روش‌هایی مانند شبیه‌سازی مونت کارلو، از سرعت بالاتری برخوردار است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Assessment of the Impact of Distributed Generation and Distribution Network Faults on Generation Reliability Indices

نویسنده [English]

  • Faezane Askari
Faculty Member, Department of Electrical Engineering, Technical and Vocational University (TVU), Tehran, Iran.
چکیده [English]

In addition to effects on the distribution network such as reducing loss, improving voltage profile, and increasing reliability, installing DGs can also indirectly affect the power system generation reliability. But unlike the transmission network, which is considered to be completely reliable when studying HLI level reliability studies, the distribution network, which contains most of the distributed power generation capacity, has high incidence, lower levels of automation, and radial structure that can lead to capacity closure. These units are crafted. Therefore, in this article, a method is proposed to combine the uncertainties of distribution network and forced outage rate of DG into “Equivalent Forced Outage Rate” or EFOR. Using this parameter, DGs can be moved from the distribution network to the sub-transmission bus to participate in forming the capacity outage probability table and calculating HLI reliability indices. The proposed method has a Single Contingency approach to distribution network events and therefore has a higher speed compared to methods such as Monte Carlo simulation.

کلیدواژه‌ها [English]

  • Distributed generation
  • Distribution network
  • Reliability
  • Hierarchical level I (HLI)
  • Equivalent forced outage rate
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