Heuristic optimization techniques for connecting renewable distributed generators on distribution grids
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ORIGINAL ARTICLE
Heuristic optimization techniques for connecting renewable distributed generators on distribution grids Mohamed A. Tolba1,2 • Hegazy Rezk3,4 • Mujahed Al-Dhaifallah5 • Ayman A. Eisa6 Received: 26 April 2019 / Accepted: 22 February 2020 Springer-Verlag London Ltd., part of Springer Nature 2020
Abstract Proposing a high effective objective function by utilizing optimal weighting factors plays an important role in power systems to boost the quality, attitude, and efficiency of evaluating the position and capacity of renewable distributed generators (RDGs) optimally. This research introduces a comprehensive study of different effective objective functions. A comprehensive analysis between the most modern optimization techniques, like hybrid particle swarm optimization (PSO) with Quazi-Newton, hybrid PSO with gravitational search algorithm, grasshopper optimization algorithm, moth-flame optimization, and slap-swarm algorithm, is done in order to determine the best optimizer with respect to high performance, high accuracy, and the minimum convergence time. The best prepared methodology is proposed and compared with other modern techniques to validate its performance. The suggested scheme is exercised by studying the impact of the RDGs integration for 33 and 69 nodes of IEEE distribution grids, in addition to one of the Egyptian radial distribution networks as a practical case study within 24 h at different load levels. The numerical results confirmed the importance and usefulness of incorporating electing the efficient objective function and superior optimization algorithm in the power system to achieve a successful global optimum solution to ensure the power quality through enhanced voltage levels, while minifying the system power losses and the operating prices. Keywords Renewable distributed power generators Voltage level Power losses Operating cost Optimization methodology Egyptian case study Load levels
1 Introduction For the time being, the electric power industry is evolving quickly, due to growth in the demand for electricity with high quality, reliability, and stability [1–4]. Several critical & Mohamed A. Tolba [email protected]; [email protected] & Hegazy Rezk [email protected]; [email protected] Mujahed Al-Dhaifallah [email protected]
loads (such as hospitals, radiation and nuclear installations, and the heavy industry with environmental concerns) are very sensitive for power quality degradations. According to the mentioned factors, the distribution systems (DSs) are suffering from many problems such as voltage drop, high losses, and high cost of power, which results in the 3
College of Engineering at Wadi Aldawaser, Prince Sattam Bin Abdulaziz University, Wadi Aldawaser 11991, Saudi Arabia
4
Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61111, Egypt
5
Systems Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Kingdom of Saudi Arabia
6
Natio
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