Comprendiendo los Precios Nodales Espaciales y el Valor Estratégico del Agua en el Despacho Óptimo
(Understanding Locational Marginal Prices (LMPs) and Strategic Value of Water in Optimal Dispatch)
Ivan Chaparro (firstname.lastname@example.org), David Watts (email@example.com)
This paper appears in: Revista IEEE América Latina
Publication Date: March 2012
Volume: 10, Issue: 2
This paper develops models of optimal power flow (OPF) applied to different power systems increasing in complexity; a thermal system without transmission representation, a thermal one with the transmission system, and a hydrothermal system with transmission constraints and a reservoir allowing water management and Peak Load Shaving. This paper develops algebraically the modeling of these features and their effect on optimal dispatch and on short-term energy prices (varying in time and space). This is supported by the use of very simple numerical examples.We conclude that prices are strongly affected by both physical and economical characteristics of the systems. Transmission has a key role here, especially shaping prices over the space and limiting the strategic value of water storage.
locational marginal pricing, LMP, value of water, thermal power system, hydrothermal power system, optimal power flow, OPF, economic dispatch
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