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Robust Unit Commitment Including Frequency Stability Constraints

Author

Listed:
  • Felipe Pérez-Illanes

    (Department of Electrical Engineering, Universidad de Chile, Santiago 8370000, Chile)

  • Eduardo Álvarez-Miranda

    (Department of Industrial Engineering, Universidad de Talca, Curicó 3340000, Chile)

  • Claudia Rahmann

    (Department of Electrical Engineering, Universidad de Chile, Santiago 8370000, Chile)

  • Camilo Campos-Valdés

    (Facultad de Ingeniería, Universidad Autónoma de Chile, Talca 3460000, Chile)

Abstract

An increased use of variable generation technologies such as wind power and photovoltaic generation can have important effects on system frequency performance during normal operation as well as contingencies. The main reasons are the operational principles and inherent characteristics of these power plants like operation at maximum power point and no inertial response during power system imbalances. This has led to new challenges for Transmission System Operators in terms of ensuring system security during contingencies. In this context, this paper proposes a Robust Unit Commitment including a set of additional frequency stability constraints. To do this, a simplified dynamic model of the initial system frequency response is used in combination with historical frequency nadir data during contingencies. The proposed approach is especially suitable for power systems with cost-based economic dispatch like those in most Latin American countries. The study is done considering the Northern Interconnected System of Chile, a 50-Hz medium size isolated power system. The results obtained were validated by means of dynamic simulations of different system contingencies.

Suggested Citation

  • Felipe Pérez-Illanes & Eduardo Álvarez-Miranda & Claudia Rahmann & Camilo Campos-Valdés, 2016. "Robust Unit Commitment Including Frequency Stability Constraints," Energies, MDPI, vol. 9(11), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:11:p:957-:d:83009
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    Citations

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    Cited by:

    1. Johnson, Samuel C. & Rhodes, Joshua D. & Webber, Michael E., 2020. "Understanding the impact of non-synchronous wind and solar generation on grid stability and identifying mitigation pathways," Applied Energy, Elsevier, vol. 262(C).
    2. Hsin-Wei Chiu & Le-Ren Chang-Chien & Chin-Chung Wu, 2021. "Construction of a Frequency Compliant Unit Commitment Framework Using an Ensemble Learning Technique," Energies, MDPI, vol. 14(2), pages 1-19, January.
    3. Wogrin, S. & Tejada-Arango, D. & Delikaraoglou, S. & Botterud, A., 2020. "Assessing the impact of inertia and reactive power constraints in generation expansion planning," Applied Energy, Elsevier, vol. 280(C).

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