COMPREHENSIVE EVALUATION METHOD FOR DISTRIBUTED PHOTOVOLTAIC HOSTING CAPACITY OF DISTRIBUTION NETWORKS BASED ON STOCHASTIC ROBUST OPTIMIZATION

Zhai Suwei; Zhang Xinjie; Li Wenyun; Gao Tianliang; Yu Quanxi; Liang Junkai

doi:10.19912/j.0254-0096.tynxb.2024-0375

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (7) : 624-635. DOI: 10.19912/j.0254-0096.tynxb.2024-0375

Special Topics of Academic Papers at the 94th Annual Meeting of the China Association for Science and Technology

COMPREHENSIVE EVALUATION METHOD FOR DISTRIBUTED PHOTOVOLTAIC HOSTING CAPACITY OF DISTRIBUTION NETWORKS BASED ON STOCHASTIC ROBUST OPTIMIZATION

Zhai Suwei¹, Zhang Xinjie¹, Li Wenyun¹, Gao Tianliang², Yu Quanxi², Liang Junkai¹

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Abstract

In order to effectively evaluate the distributed photovoltaic hosting capacity of distribution network, a comprehensive evaluation method of distributed photovoltaic hosting capacity of distribution network based on stochastic robust optimization is proposed. Firstly, the K-means clustering method is used to cluster the load levels of the distribution network. Then, a stochastic optimization algorithm is used to deal with the load level uncertainties. Aiming at the uncertainties of photovoltaic output and the limitation of traditional box uncertainty set, a multi-interval uncertainty set is proposed to describe the fluctuation of distributed photovoltaic output. Then, considering the security, adequacy and economy of the power grid, a comprehensive evaluation model of distributed photovoltaic hosting capacity of distribution network based on stochastic robust optimization is established. Finally, the simulation verification of 10 kV distribution system in a certain area shows that this method can comprehensively and reasonably analyze the hosting capacity of distributed photovoltaic in distribution network and improve the accuracy of evaluation.

Key words

K-means clustering / multi-interval uncertain set / stochastic robust optimization / photovoltaic hosting capacity / comprehensive assessment

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Zhai Suwei, Zhang Xinjie, Li Wenyun, Gao Tianliang, Yu Quanxi, Liang Junkai. COMPREHENSIVE EVALUATION METHOD FOR DISTRIBUTED PHOTOVOLTAIC HOSTING CAPACITY OF DISTRIBUTION NETWORKS BASED ON STOCHASTIC ROBUST OPTIMIZATION[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 624-635 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0375

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