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Reliability-constrained configuration optimization for integrated power and natural gas energy systems: A stochastic approach

Author

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  • Shabanian-Poodeh, Mostafa
  • Hooshmand, Rahmat-Allah
  • Shafie-khah, Miadreza

Abstract

With the escalating dependence on electricity and natural gas infrastructure, ensuring both reliability and economic efficiency becomes paramount. It necessitates reliability centric measures to mitigate disruptions that could cascade between these interconnected systems. To address this challenges, this paper introduces a reliability-constrained two-stage stochastic model to optimize power-to-gas (P2 G) and gas-to-power (G2P) unit placement and sizing, aiming to enhance the reliability of both systems under stochastic scenarios. The proposed model, employing Sequential Monte Carlo (SMC) within its optimization framework, seeks to minimize investment, operation, and reliability costs. By addressing temporal uncertainties in component outages for both systems and considering uncertainties in power and gas system loads with a high temporal resolution and annual load growth, the model provides a comprehensive reliability perspective. Furthermore, sensitivity analysis is conducted to explore the impact of varying Values of Lost Load (VOLL) on the planning results. Numerical evaluation, using two integrated energy systems including IEEE 14-bus-10-gas node, and large-scale energy systems including IEEE 118-bus-85-gas node integrated power-gas system (IPGS), demonstrates a significant 12.53 % improvement in overall system reliability. Furthermore, a 2.81 % reduction in operation costs and a substantial 26.3 % reduction in reliability costs, validating the effectiveness of the proposed model.

Suggested Citation

  • Shabanian-Poodeh, Mostafa & Hooshmand, Rahmat-Allah & Shafie-khah, Miadreza, 2025. "Reliability-constrained configuration optimization for integrated power and natural gas energy systems: A stochastic approach," Reliability Engineering and System Safety, Elsevier, vol. 254(PA).
  • Handle: RePEc:eee:reensy:v:254:y:2025:i:pa:s0951832024006719
    DOI: 10.1016/j.ress.2024.110600
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