RELIABILITY ASSESSMENT OF GRID-CONNECTED MICROGRIDS BASED ON FUZZY GO-FLOW METHODOLOGY

Shang Yueyang; Zhang Shuailong; Yue Dawei; Jiang Yi; Yang Mingzhe; Li Lianbing

doi:10.19912/j.0254-0096.tynxb.2023-1437

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 429-437. DOI: 10.19912/j.0254-0096.tynxb.2023-1437

RELIABILITY ASSESSMENT OF GRID-CONNECTED MICROGRIDS BASED ON FUZZY GO-FLOW METHODOLOGY

Yue Dawei^1,2, Jiang Yi³, Yang Mingzhe^1,2, Li Lianbing^1,2, Shang Yueyang^1,2, Zhang Shuailong³

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Abstract

A new reliability assessment algorithm, the fuzzy GO-FLOW methodology, is introduced into the reliability assessment of grid-connected microgrids due to the limitations of the conventional GO-FLOW methodology in terms of constant failure rate and maintenance rate. Firstly, based on the trapezoidal fuzzy number, the GO-FLOW methodology is improved. Subsequently, according to the structure of the grid-connected microgrid system, the novel operator is designed and the fuzzy GO-FLOW diagram of the system is established, and the fuzzy success probability of the operator is also calculated. Finally, the fuzzy GO-FLOW method, the pre-fuzzification GO-FLOW method and the sequential Monte Carlo simulation method are compared and analyzed based on the improved IEEE RBTS BUS6 F4 feeder system. The results show that the fuzzy GO-FLOW methodology has high operational efficiency and computational accuracy in the reliability assessment of grid-connected microgrids.

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reliability analysis / microgrids / photovoltaic power / GO-FLOW methodology / trapezoidal fuzzy number

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Yue Dawei, Jiang Yi, Yang Mingzhe, Li Lianbing, Shang Yueyang, Zhang Shuailong. RELIABILITY ASSESSMENT OF GRID-CONNECTED MICROGRIDS BASED ON FUZZY GO-FLOW METHODOLOGY[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 429-437 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1437

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