Multi-Level Optimal Power Flow Solver in Large Distribution Networks: Preprint

Zhou, Xinyang; Chen, Yue; Liu, Zhiyuan; Zhao, Changhong; Chen, Lijun

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DOE OSTI · 1726022

Multi-Level Optimal Power Flow Solver in Large Distribution Networks: Preprint

Zhou, Xinyang·Chen, Yue·Liu, Zhiyuan·Zhao, Changhong·Chen, Lijun

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Abstract

Solving optimal power flow (OPF) problem for large distribution networks incurs high computational complexity. We consider a large multi-phase distribution networks of tree topology with deep penetration of active devices. We divide the network into collaborating areas featuring subtree topology and subareas featuring subsubtree topology. We design a multi-level implementation of the primal-dual gradient algorithm for solving the voltage regulation OPF problems while preserving nodal voltage information and topological information within areas and subareas. Numerical results on a 4,521-node system verifies that the proposed algorithm can significantly improve computational speed without compromising any optimality.

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BibTeX RIS

Zhou, Xinyang, Chen, Yue, Liu, Zhiyuan, Zhao, Changhong, Chen, Lijun. 2020-11-17. Multi-Level Optimal Power Flow Solver in Large Distribution Networks: Preprint. https://www.osti.gov/biblio/1726022

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