Marmolejo Saucedo, José AntonioJosé AntonioMarmolejo SaucedoRodríguez Aguilar, RománRománRodríguez Aguilar2024-10-222024-10-222015Marmolejo-Saucedo, J y Rodríguez-Aguilar, R. (2015). Short-term generation planning by primal and dual decomposition techniques. Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas..https://repositorio.unal.edu.co/handle/unal/60722https://scripta.up.edu.mx/handle/20.500.12552/1140610.15446/dyna.v82n191.51147This paper addresses the short-term generation planning (STGP) through thermoelectric units. The mathematical model is presented as a Mixed Integer Non Linear Problem (MINLP). Several works on the state of art of the problem have revealed that the computational effort of this problem grows exponentially with the number of time periods and number of thermoelectric units. Therefore, we present two alternatives to solve a STGP based on Benders’ partitioning algorithm and Lagrangian relaxation in order to reduce the computational effort. The proposal is to apply primal and dual decomposition techniques, which exploit the structure of the problem to reduce solution time by decomposing the STGP into a master problem and a subproblem. For Benders’ algorithm, the master problem is a Mixed Integer Problem (MIP) and for the subproblem, it is a Non Linear Problem (NLP). For Lagrangian relaxation, the master problem and the subproblem are MINLP. The computational experiments show the performance of both decomposition techniques applied to the STGP. These techniques allow us to save computation time when compared to some high performance commercial solvers. ©Universidad Nacional de Colombia: Facultad de Minas, Los autores.enAcceso AbiertoBenders’ algorithmLagrangian relaxationSubgradientDecomposition techniquesPower generationResource Types::text::Non-primary product