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arXiv · 2207.12519

A Three-phase Power Flow Model and Balanced Network Analysis

Steven H. Low
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Abstract

First we present an approach to formulate unbalanced three-phase power flow problems for general networks that explicitly separates device models and network models. A device model consists of (i) an internal model and (ii) a conversion rule. The conversion rule relates the internal variables (voltage, current, and power) of a device to its terminal variables through a conversion matrix {\Gamma} and these terminal variables are related by network equations. Second we apply this approach to balanced three-phase networks to formalize per-phase analysis and prove its validity for general networks using the spectral property of the conversion matrix {\Gamma}.

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Steven H. Low. 2022-07-25. A Three-phase Power Flow Model and Balanced Network Analysis. https://arxiv.org/abs/2207.12519

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