1. Universidad Nacional de Colombia, Cra 27 No. 64-60, Manizales, Colombia
2. Technical University of Catalonia, Advanced Control of Energy Systems, Institute of Industrial and Control Engineering, Avda. Diagonal 647, pl 11, 08027 Barcelona, Spain
3. Technical University of Catalonia, Advanced Control of Energy Systems, EPSEVG and FME Avda. Victor Balaguer, s/n, 08800 Vilanova i la Geltrú, Spain