Holomorphic Embedding Load Flow Method in Three-Phase Distribution Networks with ZIP Loads

The Holomorphic Embedding Load flow Method (HELM) employs analytic continuation of complex functions to calculate the practical (high voltage) load solution and provides promising convergence guarantees. Although HELM has been applied various types power systems, literature not thoroughly investigated three-phase distribution networks with common types/connections. In this paper, we extend ZIP loads, while preserving its prominent promises. Specifically, introduce a formulation, which emphasizes on accurate modeling constant-current loads (and voltage dependence current injections) for both wye delta connections. We perform extensive numerical experiments standard test systems equipment/connection demonstrate accuracy efficacy proposed compared existing literature.