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Optimal dispatching of regional power grid considering vehicle network interaction

Author

Listed:
  • Yuanpeng Hua
  • Shiqian Wang
  • Yuanyuan Wang
  • Linru Zhang
  • Weiliang Liu

Abstract

When large-scale electric vehicles are connected to the grid for unordered charging, it will seriously affect the stability and security of the power system. To solve this problem, this paper proposes a regional power network optimization scheduling method considering vehicle network interaction. Initially, based on the user behavior characteristics and charging and discharging characteristics of electric vehicles, a charging and discharging behavior model of electric vehicles was established. Based on the Monte Carlo sampling algorithm, the scheduling upper and lower limits of each scheduling cycle of electric vehicles were described, and the scheduling potential of each scheduling cycle of electric vehicles was obtained. Then, the electricity price is then used as an incentive parameter to guide EV users to charge during periods of low electricity prices and participate in discharge during periods of peak electricity prices. Aiming at the highest economic efficiency, the best consumption effect of new energy and the smoothest demand-side power curve of regional power grid, a three-objective optimal dispatching model was established. In the later stage, uncertainty factors are taken into consideration by introducing the concept of interval numbers, and an interval multi-objective optimization dispatching model is established. The two dispatching models are solved by NSGA-II algorithm and improved NSGA-II algorithm, and the Pareto solution set is obtained. Finally, based on the analytic Hierarchy Process (AHP), the optimal scheduling scheme is determined. The Monte Carlo sampling method is used to simulate the user side charging demand, and the effectiveness of this method is verified. In addition, the results of the interval multi-objective optimization model and the deterministic multi-objective optimization model are compared, and it is proved that the solution results of the interval multi-objective model are more adaptive, practical and robust to the uncertain factors.

Suggested Citation

  • Yuanpeng Hua & Shiqian Wang & Yuanyuan Wang & Linru Zhang & Weiliang Liu, 2024. "Optimal dispatching of regional power grid considering vehicle network interaction," PLOS ONE, Public Library of Science, vol. 19(7), pages 1-25, July.
    • Handle: RePEc:plo:pone00:0297855
    DOI: 10.1371/journal.pone.0297855
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    References listed on IDEAS

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