Abstract
In this paper, we model the unit commitment problem as a multi-stage stochastic programming problem under price and load uncertainties. We assume that there are hourly spot markets for both electricity and fuel consumed by the generators. In each time period, the operator needs to determine which units are to be scheduled so as to maximize the profit while meeting the demand. Assuming that the price and load uncertainties can be represented by a scenario tree, we develop a unit decommitment method using dynamic programming to solve this problem. When there is only one unit under consideration, we show that a scenario tree can be converted to a lattice that allows branch recombination, which may greatly reduce the size of state space. This one-unit problem can be used to value a generation asset over a short-term period. In conclusion, we present our numerical results.
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© 2002 Kluwer Academic Publishers
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Tseng, CL. (2002). A Stochastic Model for a Price-Based Unit Commitment Problem and Its Application to Short-Term Generation Asset Valuation. In: Hobbs, B.F., Rothkopf, M.H., O’Neill, R.P., Chao, Hp. (eds) The Next Generation of Electric Power Unit Commitment Models. International Series in Operations Research & Management Science, vol 36. Springer, Boston, MA. https://doi.org/10.1007/0-306-47663-0_7
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DOI: https://doi.org/10.1007/0-306-47663-0_7
Publisher Name: Springer, Boston, MA
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