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Optimal Operation of Renewable Energy Bases Considering Short-Circuit Ratio and Transient Overvoltage Constraints

Author

Listed:
  • Siqi Zhang

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Hanzhi Zhang

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Hao Sheng

    (Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China)

  • Tianxiao Huang

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Tianqi Zhao

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Yinglin Liu

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Shuaihao Kong

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

  • Lu Zhang

    (Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing 100045, China)

Abstract

The increasing integration of renewable energy bases into power systems poses significant challenges for voltage stability and operational optimization. This paper develops an optimization model to maximize the total generation output in a renewable energy base while satisfying short-circuit ratio (SCR), transient overvoltage (TOV), and conventional operational constraints. To address the inherent nonlinearity of power systems, the trajectory sensitivities of SCR and TOV with respect to the decision variables are calculated, allowing the original nonlinear optimization problem to be transformed into a linear programming (LP) problem for efficient solving. Recognizing that the LP-based solution may not strictly satisfy all constraints during time-domain simulation verification due to system nonlinearity, the continuation method is introduced to ensure that a refined solution that satisfies all constraints is obtained. Case studies conducted on a real-world renewable energy base demonstrate the effectiveness and feasibility of the proposed approach.

Suggested Citation

  • Siqi Zhang & Hanzhi Zhang & Hao Sheng & Tianxiao Huang & Tianqi Zhao & Yinglin Liu & Shuaihao Kong & Lu Zhang, 2025. "Optimal Operation of Renewable Energy Bases Considering Short-Circuit Ratio and Transient Overvoltage Constraints," Energies, MDPI, vol. 18(5), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:5:p:1256-:d:1605213
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