Probabilistic assessment of transformer operating risk considering the correlation among wind power, PV and load

Xiang Lin; Jian Fang; Hongbin Wang; Chunhui Gu; Kuang Yin; Min Zhang; Fuxue Mo

doi:10.1117/12.2611954

14 October 2021 Probabilistic assessment of transformer operating risk considering the correlation among wind power, PV and load

Xiang Lin, Jian Fang, Hongbin Wang, Chunhui Gu, Kuang Yin, Min Zhang, Fuxue Mo

Author Affiliations +

Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 1193006 (2021) https://doi.org/10.1117/12.2611954
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China

Abstract

In order to evaluate the impact of wind farm and photovoltaic (PV) power station on the operation risk of output transformer, the joint probability density distribution of wind power and load, PV and load as well as wind power, PV and load are established by Copula theory. Based on Susa model, the probability density distribution of characteristic temperature of transformers is derived. For the assessment of the operational risk of transformer, this paper constructs IDP, IFP, ELOIL indexes. Finally, a sending grid with renewable energy base is taken as an example. of which the relevant risk assessment indexes are analysed to verify the accuracy of the proposed method. Moreover, the results can provide guidance for the selection and operation of transformers.

Citation Download Citation

Xiang Lin, Jian Fang, Hongbin Wang, Chunhui Gu, Kuang Yin, Min Zhang, and Fuxue Mo "Probabilistic assessment of transformer operating risk considering the correlation among wind power, PV and load", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 1193006 (14 October 2021); https://doi.org/10.1117/12.2611954

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