期刊
JOURNAL OF ENERGY STORAGE
卷 42, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2021.103041
关键词
Battery Energy Storage; Distribution Networks; Emission Losses; Equilibrium Optimizer Algorithm; PV Distributed Energy Sources; Voltage Source Converter Losses
The article proposes a methodology using Equilibrium Optimization algorithm for optimal integration of PV with BES in distribution networks, aiming to achieve maximum economic benefits. The optimization includes consideration of multiple objectives such as cost reduction, investment costs, operational costs, and emissions. Performance analysis is conducted using various optimization algorithms like genetic algorithm, particle swarm optimization, and differential evolution.
Taking advantage of the favorable operating efficiencies, photovoltaic (PV) with Battery Energy Storage (BES) technology becomes a viable option for improving the reliability of distribution networks; however, achieving substantial economic benefits involves an optimization of allocation in terms of location and capacity for the incorporation of PV units and BES into distribution networks. This article suggests a methodology based on the Equilibrium Optimization (EO) algorithm for optimal integration of PV with BES in radial distribution networks. Multifarious objectives are comprised to minimize the cost of energy not supplied (CENS), the investment cost of PV and BES installations, their operational costs, the power losses through the distribution lines, the produced CO2 emissions relative to the grid and PV systems. Added to that, the power losses through the voltage source converter (VSC) interface between integrated PV and BES with the grid are assessed. The proposed methodology is applied on two radial distribution systems of 30-bus and 69-bus. The optimal integration of PV systems with BES have been obtained by considering various case studies by imposing several limits on the number of PV-BES and the state of charge (SoC) for BES. Subsequently, comparative performance analysis is performed using genetic algorithm (GA), EO algorithm, particle swarm optimization (PSO), differential evolution (DE), and grey wolf optimization (GWO).
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