Journal
OPERATIONS RESEARCH
Volume 54, Issue 4, Pages 767-775Publisher
INST OPERATIONS RESEARCH MANAGEMENT SCIENCES
DOI: 10.1287/opre.1060.0309
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We present a dynamic programming algorithm for solving the single-unit commitment (IUC) problem with ramping constraints and arbitrary convex cost functions. The algorithm is based on a new approach for efficiently solving the single-unit economic dispatch (ED) problem with ramping constraints and arbitrary convex cost functions, improving on previously known ones that were limited to piecewise-linear functions. For simple convex functions, such as the quadratic ones typically used in applications, the solution cost of all the involved (ED) problems, consisting of finding an optimal primal and dual solution, is O(n(3)). Coupled with a special visit of the state-space graph in the dynamic programming algorithm, this approach enables one to solve (IUC) with simple convex functions in O(n(3)) overall.
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