Abstract

The Holomorphic Embedding Load flow Method (HELM) is an approach aimed at solving the power flow problem based on complex analysis techniques, resulting into a deterministic, non-iterative, and initial-estimation independent method, as opposed to well-known iterative algorithms, which are prone to incorrect solutions in absence of appropriate initial estimations. Distributed Slack Bus (DSB) models, which are a realistic mean of distributing active power losses among system generators instead of assigning the losses to a single generator, are formulated for iterative methods only. Thus, the present paper proposes a novel approach for a DSB model suitable for HELM. This novel approach is tested by using an IEEE 118-bus benchmark system, yielding very similar results to those obtained using a conventional Newton Raphson method. Key words: Distributed slack bus, Holomorphic Embedding Load-Flow Method, Power flow, Newton-Raphson method.