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The Integration of Wind-Solar-Hydropower Generation in Enabling Economic Robust Dispatch

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  • Peng Wei
  • Yang Liu

Abstract

Currently the renewable energies including wind power and photovoltaic power have been increasingly deployed in power system to achieve contamination free and environmental-friendly power production. However, due to the natural characteristics of wind and solar, both wind power and photovoltaic power contain uncertainty and randomness which may significantly impact the stability, security, and economic efficiency of the conventional power system mainly consisted by hydropower and thermal power. To deal with the issue, this paper presents a two-stage robust model which is able to achieve the optimal day-ahead dispatch strategy in the worst-case scenario of wind and photovoltaic outputs. Because of the strong interactions between the two stages, the original optimization has been decomposed into the day-ahead dispatch master problem and the additional adjustment subproblem considering the uncertainty and randomness of the wind and the photovoltaic outputs. Also, the piecewise linearization technique is employed to convert the original problem into a MILP problem. Afterward, the dualization of the additional adjustment subproblem can be obtained by using linear programming strong duality theory. Additionally, the Big- M method enables the linearization of the dual model. The interacted-iterations between the master problem and the subproblem are successfully implemented which can ultimately figure out the optimal day-ahead dispatch strategy of the power system with conventional and renewable energies.

Suggested Citation

  • Peng Wei & Yang Liu, 2019. "The Integration of Wind-Solar-Hydropower Generation in Enabling Economic Robust Dispatch," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-12, January.
  • Handle: RePEc:hin:jnlmpe:4634131
    DOI: 10.1155/2019/4634131
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    Cited by:

    1. Hu, Jing & Li, Yu & Wörman, Anders & Zhang, Bingyao & Ding, Wei & Zhou, Huicheng, 2023. "Reducing energy storage demand by spatial-temporal coordination of multienergy systems," Applied Energy, Elsevier, vol. 329(C).
    2. Kumbuso Joshua Nyoni & Anesu Maronga & Paul Gerard Tuohy & Agabu Shane, 2021. "Hydro–Connected Floating PV Renewable Energy System and Onshore Wind Potential in Zambia," Energies, MDPI, vol. 14(17), pages 1-42, August.

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