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arXiv · 2003.00333

Multi-Level Optimal Power Flow Solver in Large Distribution Networks

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

Solving optimal power flow (OPF) problems for large distribution networks incurs high computational complexity. We consider a large multi-phase distribution network of tree topology with a 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 to solve 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 verify that the proposed algorithm can significantly improve the computational speed without compromising any optimality.

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Xinyang Zhou, Yue Chen, Zhiyuan Liu, Changhong Zhao, Lijun Chen. 2020-02-29. Multi-Level Optimal Power Flow Solver in Large Distribution Networks. https://arxiv.org/abs/2003.00333

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