Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 29, Issue 6, Pages 2974-2984Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2014.2313513
Keywords
Mixed-integer linear programming (MILP); real-time unit commitment; storage devices; two-stage optimization model
Categories
Funding
- CONICYT, FONDECYT/Regular [1130781]
- Ministry of Science of Spain under CICYT [ENE2012-30679]
- School of Engineering at Pontificia Universidad Catolica de Chile
- CONICYT, FONDECYT/Postdoctorado [3140398]
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Intermittence and variability of renewable resources is often a barrier to their large scale integration into power systems. We propose a stochastic real-time unit commitment to deal with the stochasticity and intermittence of non-dispatchable renewable resources including ideal and generic energy storage devices. Firstly, we present a mathematical definition of an ideal and generic storage device. This storage device definition has some mathematical advantages: 1) it can be easily integrated within complex optimization problems, 2) it can be modeled using linear programming, suitable for practical large-scale cases. Secondly, a stochastic unit commitment with ideal and generic storage devices and intermittent generation is proposed to solve the joint energy-and-reserves scheduling and real-time power balance problem, reflecting the minute-by-minute intermittent changes and the stochasticity of renewable resources. We also compare our results with those obtained using a deterministic unit commitment with perfect information. The proposed model is illustrated with a 24-bus system.
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