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arXiv · 1606.00941

An Exact Linearization Method for OLTC of Transformer in Branch Flow Model

Wenchuan Wu·Zhuang Tian·Boming Zhang
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Abstract

The branch flow based optimal power flow(OPF) problem in radianlly operated distribution networks can be exactly relazed to a second order cone programming (SOCP) model without considering transformers. However, the introdution of nonlinear transformer models will make the OPF model non-convex. This paper presents an exact linearized transformer's OLTC model to keep the OPF model convex via binary expanstion scheme and big-M method. Validity of the proposed method is verified using IEEE 33-bus test system.

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Wenchuan Wu, Zhuang Tian, Boming Zhang. 2016-06-03. An Exact Linearization Method for OLTC of Transformer in Branch Flow Model. https://doi.org/10.1109/tpwrs.2016.2603438

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