POWER GENERATION EFFICIENCY IMPROVEMENT IN CASCADED AND HEAD-DEPENDENT RESERVOIRS

This paper is on the problem of short-term hydro scheduling (STHS), particularly concerning cascaded and head-dependent reservoirs. We propose an efficient method, based on nonlinear programming (NLP), for power generation efficiency improvement. This method considers hydroelectric power generation as a function of water discharge and also of the head. The proposed method provides higher profit for the generating company (GENCO), at a negligible extra computational effort, in comparison with classical optimisation methods based on linear programming (LP) that ignore head dependence.