2020-03-262020-03-262019IEEE Transactions on Circuits and Systems II: Express Briefs; Vol. 66, Núm. 4; pp. 642-64615497747https://hdl.handle.net/20.500.12585/9150This brief addresses the numerical approximation of the maximum power consumption in direct-current microgrids (DC-MGs) with constant power loads through a convex optimizing model. The convex formulation is developed via a semidefinite programming model and is solved by using a MATLAB/CVX package. For comparison purposes the exact nonlinear model is solved in a GAMS package to compare the accuracy and quality of the results obtained with the proposed convex reformulation. Numerical testing is made with a small three-node DC-MG test system as well as DC-MGs from 10 to 150 nodes. © 2004-2012 IEEE.Recurso electrónicoapplication/pdfenghttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/article10.1109/TCSII.2018.2866447Admissible regionConstant power loadsLinear time-invariant DC gridsPower flowSemidefinite programmingConvex optimizationElectric load flowMATLABAdmissible regionsConstant power loadDC gridPower flowsSemidefinite programmingElectric power utilizationinfo:eu-repo/semantics/restrictedAccessAtribución-NoComercial 4.0 InternacionalUniversidad Tecnológica de BolívarRepositorio UTB56919564100