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Multi-Timescale Coordinated Planning of Wind, Solar, and Energy Storage Considering Generalized Adequacy

Author

Listed:
  • Jian Yin

    (State Grid NanChang Electric Power Supply Company, Nanchang 330077, China)

  • Lixiang Fu

    (State Grid NanChang Electric Power Supply Company, Nanchang 330077, China)

  • Liming Xiao

    (State Grid NanChang Electric Power Supply Company, Nanchang 330077, China)

  • Zijian Meng

    (School of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing 102206, China)

  • Yuejun Luo

    (State Grid NanChang Electric Power Supply Company, Nanchang 330077, China)

  • Zili Chen

    (School of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing 102206, China)

  • Zhaoyuan Wu

    (School of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing 102206, China)

Abstract

The core of power system planning lies in optimizing resource portfolios to ensure reliable electricity supply, with generalized adequacy serving as a key indicator of supply security. As the share of renewable energy increases, the mechanisms underlying system security undergo profound changes, extending the concept of adequacy from mere power balance to encompass flexibility and inertia support while exhibiting spatial and temporal heterogeneity and wide-area characteristics. Traditional planning approaches can no longer meet these evolving requirements. To address this, a power grid coordinated planning framework is proposed based on generalized adequacy, which integrates power and energy adequacy, flexibility adequacy, and inertia adequacy. Within this framework, generalized adequacy metrics and their quantification methods are developed, and a coordinated planning strategy for wind power, photovoltaic power, multi-timescale energy storage, and transmission expansion is introduced to enhance renewable energy utilization and meet flexibility needs across multiple timescales. Furthermore, a scheme evaluation and selection method based on generalized adequacy is proposed. Finally, the effectiveness of the proposed approach is validated through case studies on the IEEE 24-bus system.

Suggested Citation

  • Jian Yin & Lixiang Fu & Liming Xiao & Zijian Meng & Yuejun Luo & Zili Chen & Zhaoyuan Wu, 2025. "Multi-Timescale Coordinated Planning of Wind, Solar, and Energy Storage Considering Generalized Adequacy," Energies, MDPI, vol. 18(18), pages 1-27, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:18:p:5024-:d:1754668
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    References listed on IDEAS

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