In this work we study the problem of State Estimation(SE) in large-scale, 3-phase coupled, unbalanced distribution systems. More specifically, we address the problem of including mixed real-time measurements, synchronized and unsynchronized, from phasor measurement units and smart meters, into existing solutions. We propose a computationally efficient two-step method to update a prior solution using the measurements, while taking into account physical constraint caused by buses with no loads. We test the method on a benchmark test feeder to illustrate the effectiveness of the approach.
@article{arxiv.1703.10815,
title = {A Two-Step Distribution System State Estimator with Grid Constraints and Mixed Measurements},
author = {Miguel Picallo Cruz and Adolfo Anta and Ara Panosyan and Bart De Schutter},
journal= {arXiv preprint arXiv:1703.10815},
year = {2018}
}