Print Email Facebook Twitter Imperfect Unit Commitment Decisions with Perfect Information: a Real-time Comparison of Energy versus Power Title Imperfect Unit Commitment Decisions with Perfect Information: a Real-time Comparison of Energy versus Power Author Philipsen, R.M. (TU Delft Algorithmics) Morales-Espana, G. (TU Delft DC systems, Energy conversion & Storage) de Weerdt, M.M. (TU Delft Algorithmics) De Vries, Laurens (TU Delft Energie and Industrie) Date 2016 Abstract In order to cope with fluctuations and uncertainty, power systems rely on contracted reserves. The day-ahead Unit Commitment (UC) is the short-term planning process which is commonly used to schedule these resources at minimum cost, while operating the system and units within secure technical limits. This paper shows through the evaluation of deterministic cases that conventional energy-based UC formulations lead to inefficient use of reserves in real-time operation to deal with completely known deterministic events. These inefficient decisions are inherent to the assumptions underlying the energy-based formulation, and the misaligned incentives between markets and real-time operation. Economic efficiency and system security can be improved by adopting a UC formulation which explicitly considers the instantaneous power trajectories of generators. To reference this document use: http://resolver.tudelft.nl/uuid:56a3a090-9227-478a-b15b-3d648dca8826 DOI https://doi.org/10.1109/PSCC.2016.7540923 Publisher IEEE, Piscataway, NJ ISBN 978-88-941051-2-4 Source 19th Power Systems Computation Conference, PSCC 2016 Event 19th Power Systems Computation Conference, PSCC 2016, 2016-06-20 → 2016-06-24, Genova, Italy Part of collection Institutional Repository Document type conference paper Rights © 2016 R.M. Philipsen, G. Morales-Espana, M.M. de Weerdt, Laurens De Vries Files PDF rgml_power_vs_energy.pdf 412.88 KB Close viewer /islandora/object/uuid:56a3a090-9227-478a-b15b-3d648dca8826/datastream/OBJ/view