EHV/HV Italian Network Three-Phase Power-Flow by PFPD

In this paper, the three-phase generalization of a single-phase power flow (named PFPD) developed by the first author is presented. This novel formulation is mainly developed for HV/EHV transmission network applications, but it preserves validity also for distribution power system. The algorithm quantitatively aims at investigating the impact of the asymmetrical transmission structures and unbalanced loads on power systems. This impact is evaluated in terms of voltage sequence components. The algorithm is implemented in Matlab environment and tested by several fictitious networks.