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International Journal of Engineering، جلد ۳۶، شماره ۷، صفحات ۱۲۳۰-۱۲۳۸
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عنوان انگلیسی Optimal Load Shedding for Voltage Collapse Prevention Following Overloads in Distribution System
چکیده انگلیسی مقاله Load shedding is generally regarded as the final option to evade voltage collapse and blackout following major overloads. The traditional method of load shedding curtails random loads regardless of their importance until the system’s voltage is improved. Shedding random loads without considering their priority will lead to power interruption in vital infrastructures. Hence, to improve the existing power system protection scheme, development of a more effective and efficient load shedding method is necessary. In this paper, an optimal under voltage load shedding (UVLS) method is proposed for optimum prediction of amount of load shed and the best location for load curtailment. Moreover, the proposed method is designed to maintain the vital loads in the system during the load shedding process. In this work, the stability index (SI) and feed-forward backpropagation neural network (FFBPNN) were adopted to avoid voltage collapse and blackout by mitigating voltage instability following overloads in distribution system. The performance of the proposed method to several overload scenarios is investigated. Case studies performed on the IEEE 33-bus system exposed significant robustness and performance of the recommended technique. Compared to other approaches, the proposed approach is efficient in counteracting under-shedding occurrence, enhancing the voltage profile, and improving the stability of the system, whilst maintaining vital loads in the system during load shedding.
کلیدواژه‌های انگلیسی مقاله Blackout,under voltage load shedding,Voltage stability,Artificial Neural Networks,Distribution network
نویسندگان مقاله S. Sundarajoo |
Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Batu Pahat, Johor, Malaysia

D. M. Soomro |
Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Batu Pahat, Johor, Malaysia

نشانی اینترنتی https://www.ije.ir/article_167980_f23cc46118e110e696cce98bf14138cc.pdf
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