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Reliability assessment of grid-connected microgrids considering time-to-failure correction for optical storage systems
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Dawei Yue1, Yi Jiang2, Mingzhe Yang1, Lianbing Li1, Yueyang Shang1, Shuailong Zhang2
Renewable Energy Resources | 2025, 43(11) : 1510 - 1516
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Renewable Energy Resources | 2025, 43(11): 1510-1516
Reliability assessment of grid-connected microgrids considering time-to-failure correction for optical storage systems
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Dawei Yue1, Yi Jiang2, Mingzhe Yang1, Lianbing Li1, Yueyang Shang1, Shuailong Zhang2
Affiliations
  • 1.State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China
  • 2.School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130, China
Published: 2025-11-20
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Accurate modeling of photovoltaic-energy storage systems (PV-ESS) is critical to analyzing the stability and reliability of grid-connected microgrid systems. Firstly, the system reliability assessment model is established, the fault repair time model and the component failure rate model of the optical storage system are refined, and the battery aging-aware charging/discharging model accounting for energy storage lifespan degradation is established. Secondly, the reliability indicators are defined and the load-shedding and islanding strategies are developed, and the reliability evaluation method of grid-connected microgrids considering the correction of the fault repair time model of the photovoltaic storage system is proposed based on the sequential Monte Carlo simulation method. Finally, the improved IEEE RBTS BUS6 F4 feeder is used as a validation system to compare and analyze the influence of the fault repair time correction model of the PV-ESS on the reliability of grid-connected microgrids. The results more accurately evaluate the microgrid reliability by accounting for practical repair processes within PV-ESS.

PV  /  energy storage  /  grid-connected microgrid  /  fault repair time model correction  /  sequential Monte Carlo simulation method
岳大为, 姜毅, 杨明哲, 李练兵, 商悦阳, 张帅龙. 考虑光储系统故障时间修正的并网型微电网可靠性评估. 可再生能源, 2025 , 43 (11) : 1510 -1516 .
Dawei Yue, Yi Jiang, Mingzhe Yang, Lianbing Li, Yueyang Shang, Shuailong Zhang. Reliability assessment of grid-connected microgrids considering time-to-failure correction for optical storage systems[J]. Renewable Energy Resources, 2025 , 43 (11) : 1510 -1516 .
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Year 2025 volume 43 Issue 11
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  • Receive Date：2024-07-23
  • Online Date：2026-09-23
  • Published：2025-11-20
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  • Received：2024-07-23
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Affiliations
    1.State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China
    2.School of Artificial Intelligence, Hebei University of Technology, Tianjin 300130, China
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