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A Fast Convergent Distribution Power Flow for Systems with P- |V | Nodes
Journal article   Peer reviewed

A Fast Convergent Distribution Power Flow for Systems with P- |V | Nodes

Jonathan W. Ross and Karen N. Miu
IEEE transactions on power systems, pp 1-10
10 Jun 2026
DOI: https://doi.org/10.1109/TPWRS.2026.3702898

Abstract

Common Information Model (computing) Common Information Model (electricity) Computer integrated manufacturing Convergence Density estimation robust algorithm distributed energy resources (DER) distribution network Load flow Loading Modeling power flow (PF) Voltage Algorithms Numerical Analysis
This paper proposes a fast convergent power flow technique for power distribution systems with P- | V | controlled distributed energy resources (DERs). The proposed power flow algorithm enhances Iwamoto's method to accommodate the multi-phase distribution power flow equations and includes distribution-specific ZIP (polynomial) injection models. Proofs of convergence are shown for both the original and proposed algorithms. The convergent behavior of the new method with P- | V | controlled DER and ZIP load models is illustrated using the IEEE 13-Bus Feeder and two larger, actual distribution circuits. Convergence analysis of the proposed method and other solvers is performed for different system operating conditions. Computational runtime analysis also demonstrates the proposed method's speed advantage over other solvers.

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