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Optimization of Electric Power Systems

Code 11461
Year 1
Semester S1
ECTS Credits 10
Workload OT(15H)
Scientific area Electrotechnics and Electronics
Entry requirements Nonexistent.
Mode of delivery Tutorial classes
Work placements N/A
Learning outcomes The overall objective of the curricular unit can be described as the understanding and study of the electricity sector organization, particularly in Portugal, and its operation from an economic perspective – to acquire knowledge on short-term operational planning. For this propose the objectives we want to reach are: • giving students an understanding of the main characteristics of a hydrothermal power system; • addressing the mathematical optimization methods, with adequate depth, and applying them to simple problems, but also demonstrating, when possible, its practical resolution in the utilities; • introducing the most current topics that emerged with the electricity sector restructuring, based on recent papers.
Syllabus M1 Introduction Structure of a generic electric power system. Power system models. Power system control. Review of optimization techniques applicable to power systems. Load models. Examples. M2 Unit Commitment Formulation of unit commitment problem. Optimization methods Examples. M3 Dynamic Programming (DP) Characteristics of DP. Concept of suboptimization and the principle of optimality. Formulation of DP “backward” and “forward” recursion. Computational procedure in DP. Systems with more than one constraint. Examples. M4 Lagrangian Relaxation (LR) Concepts. Problem formulation. Primal problem-illustration. Lagrange function. Subgradient method for setting the dual variables. Dual problem-illustration. Duality gap. Examples. M5 Pricing Introduction. Economic interpretation of the Lagrange dual function. Marginal pricing. Marginal costing. Computational methods. Power industry models. Market based on dual prices. Pricing policies for regulated systems and markets. Examples.
Main Bibliography [1] “Electric Power System Applications of Optimization”, James A. Momoh , Second Edition,
978-1-4200658-6-2, December 19th 2008
[2] “Power Generation Operation, and Control”, Allen J. Wood and Bruce F. Wollenberg, John
Wiley & Sons, Inc.,
[3] “Modern Power Systems Control and Operation”, A.S. Debs, Kluwer Press, 1990.
[4] Sílvio Mariano, “Afectação Óptima de Unidades”. Edição do Autor, UBI, 2010.
[5] Entidade Reguladora do Sector Eléctrico,
[6] IEEE Transactions on Power Systems, IEEE Xplore, Serviços de Documentação, UBI,
Pesquisa on-line.
[7] IEEE Transactions on Energy Conversion, IEEE Xplore, Serviços de Documentação, UBI,
Pesquisa on-line.
[8] Other research papers.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2019-09-26

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