Title
Distribution System State Estimation to Support Coordinated Voltage-Control Strategies by Using Smart Meters
DOI
https://doi.org/10.1109/TPWRS.2019.2902184
Document Type
Article
Publication Date
11-1-2019
Publication Title
IEEE Transactions on Power Systems
Abstract
In this paper, a novel distribution system state estimation method based on the information provided by smart meters to support coordinated voltage control strategies in real time is presented. Because the measurement redundancy in a distribution system is very low compared with the transmission system, the proposed method is able to mitigate the effects of temporal communication link failures, thanks to the combination of the Weighted Least Square method and the Levenberg-Marquardt algorithm with a new power flow formulation using the available information from the smart meters. The test to validate the method and show its robustness was made for three representative different systems: the IEEE 30-bus and 57-bus systems, and a 30 smart home LV distribution system. To illustrate the applicability of the proposed method, a real-time digital simulator for smart distribution power grids with a coordinated voltage control system is used. The results show that the proposed method is in effective estimating the missing values in the case of communication problems between smart meters and the coordinated control system allowing the use of central voltage control strategies in real time.
Volume
34
Issue
6
First Page
5198
Last Page
5207
ISSN
08858950
Recommended Citation
Bernal Alzate, Efrain; Bueno-López, Maximiliano; Xie, Jian; and Strunz, Kai, "Distribution System State Estimation to Support Coordinated Voltage-Control Strategies by Using Smart Meters" (2019). Scopus Unisalle. 124.
https://ciencia.lasalle.edu.co/scopus_unisalle/124
Identifier
SCOPUS_ID:85074450610