Open AccessOptimal power flow solution in direct current grids using Sine-Cosine algorithm
Author(s) -
Jairo Giraldo,
Oscar Danilo Montoya,
Luis Fernando Grisales-Noreña,
Walter Gil-González,
Mauricio Holguín
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1403/1/012009
Subject(s) - power (physics) , sine , matlab , metaheuristic , mathematical optimization , computer science , minification , trigonometric functions , electric power system , algorithm , control theory (sociology) , mathematics , physics , geometry , control (management) , quantum mechanics , artificial intelligence , operating system
In the next years, Colombian power system will have the connection of distributed generators and constant power loads; Therefore, it is necessary to propose the analysis methods that allow establishing the minimum requirements that have to be satisfied for the power system to guarantee an optimal power flow in order to preserve safe and reliable operation of it. For this purpose, in this paper presents an optimal power flow in direct current resistive grids with constant power loads and distributed generators. The optimal power flow problem is formulated as a master-slave optimization algorithm. The master stage covers the dispatching of all the distributed generators by using the Sine-Cosine algorithm. In the slave stage an efficient power flow method based on successive approximations is employed to determine the voltage variables and evaluate the objective function of the problem, which corresponds to the power loss minimization. A direct current distribution network composed by 21 nodes is used as test case by comparing its numerical performance with nonlinear optimization packages and two metaheuristic approaches named black-hole optimization and continuous genetic algorithm. All the simulations are conducted via MATLAB software.