An integrated approach for optimal coordination of wind power and hydro pumping storage

Authors

  • Edgardo D. Castronuovo,

    Corresponding author
    1. Department of Electrical Engineering, University Carlos III de Madrid, Madrid, Spain
    • Correspondence: Edgardo D. Castronuovo, Department of Electrical Engineering, University Carlos III de Madrid, Av. De la Universidad 30, 28911 Leganés, Madrid, Spain.

      E-mail: ecastron@ing.uc3m.es

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  • Julio Usaola,

    1. Department of Electrical Engineering, University Carlos III de Madrid, Madrid, Spain
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  • Ricardo Bessa,

    1. INESC TEC—INESC Technology and Science (formerly INESC Porto) and FEUP—Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
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  • Manuel Matos,

    1. INESC TEC—INESC Technology and Science (formerly INESC Porto) and FEUP—Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
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  • I.C. Costa,

    1. INESC TEC—INESC Technology and Science (formerly INESC Porto) and FEUP—Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
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  • L.  Bremermann,

    1. INESC TEC—INESC Technology and Science (formerly INESC Porto) and FEUP—Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
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  • Jesus Lugaro,

    1. PERSEE-Center for Processes, Renewable Energies & Energy Systems, MINES ParisTech, F-06904 Sophia Antipolis, France
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  • George Kariniotakis

    1. PERSEE-Center for Processes, Renewable Energies & Energy Systems, MINES ParisTech, F-06904 Sophia Antipolis, France
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ABSTRACT

The increasing wind power penetration in power systems represents a techno-economic challenge for power producers and system operators. Because of the variability and uncertainty of wind power, system operators require new solutions to increase the controllability of wind farm output. On the other hand, producers that include wind farms in their portfolio need to find new ways to boost their profits in electricity markets. This can be done by optimizing the combination of wind farms and storage so as to make larger profits when selling power (trading) and reduce penalties from imbalances in the operation. The present work describes a new integrated approach for analysing wind-storage solutions that make use of probabilistic forecasts and optimization techniques to aid decision making on operating such systems. The approach includes a set of three complementary functions suitable for use in current systems. A real-life system is studied, comprising two wind farms and a large hydro station with pumping capacity. Economic profits and better operational features can be obtained from the proposed cooperation between the wind farms and storage. The revenues are function of the type of hydro storage used and the market characteristics, and several options are compared in this study. The results show that the use of a storage device can lead to a significant increase in revenue, up to 11% (2010 data, Iberian market). Also, the coordinated action improves the operational features of the integrated system. Copyright © 2013 John Wiley & Sons, Ltd.

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