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Документ Planning of energy carriers based on final energy consumption using dynamic programming and particle swarm optimization(НТУ "ХПИ", 2018) Dehghani, M.; Montazeri, Z.; Ehsanifar, A.; Seifi, A. R.; Ebadi, M. J.; Grechko, O. M.In the present article, a new approach of the energy grid studies is introduced to program energy carriers. In this view, a proper plan is designed on the use of energy carriers considering the energy optimum use. Indeed, the proper energy grid is designed by applying Iran energy balance sheet information. It is proper to mention that, the energy grid modelling is done in a matrix form. The electrical energy distribution among power stations is achieved by using the particle swarm optimization algorithm. In the present paper, concerning the dynamic programming method, it is tried to determine a suitable combination of energy carriers.Документ Spring search algorithm for simultaneous placement of distributed generation and capacitors(Національний технічний університет "Харківський політехнічний інститут", 2018) Dehghani, M.; Mardaneh, M.; Montazeri, Z.; Ehsanifar, A.; Ebadi, M. J.; Grechko, O. M.Purpose. In this paper, for simultaneous placement of distributed generation (DG) and capacitors, a new approach based on Spring Search Algorithm (SSA), is presented. This method is contained two stages using two sensitive index Sv and Ss. Sv and Ss are calculated according to nominal voltageand network losses. In the first stage, candidate buses are determined for installation DG and capacitors according to Sv and Ss. Then in the second stage, placement and sizing of distributed generation and capacitors are specified using SSA. The spring search algorithm is among the optimization algorithms developed by the idea of laws of nature and the search factors are a set of objects. The proposed algorithm is tested on 33-bus and 69-bus radial distribution networks. The test results indicate good performance of the proposed method