Improving the Performance of Low Voltage Networks by an Optimized Unbalance Operation of Three-Phase Distributed Generators

Autor: Adolfo Gastalver-Rubio, Esther Romero-Ramos, Jose Maria Maza-Ortega

Publikováno v: IEEE Access, Vol 7, Pp 177504-177516 (2019)

This work focuses on using the full potential of PV inverters in order to improve the efficiency of low voltage networks. More specifically, the independent per-phase control capability of PV three-phase four-wire inverters, which are able to inject

Externí odkaz: https://doaj.org/article/93bd9df485e44ec989b54af91df96d2f

Accurate Assessment of Decoupled OLTC Transformers to Optimize the Operation of Low-Voltage Networks

Autor: Álvaro Rodríguez del Nozal, Esther Romero-Ramos, Ángel Luis Trigo-García

Publikováno v: Energies, Vol 12, Iss 11, p 2173 (2019)

Voltage control in active distribution networks must adapt to the unbalanced nature of most of these systems, and this requirement becomes even more apparent at low voltage levels. The use of transformers with on-load tap changers is gaining populari

Externí odkaz: https://doaj.org/article/92f7bfcda37849978efab3104534de74

Compensated Load Flow Solutions for Distribution System State Estimation

Autor: Antonio de la Villa-Jaén, Catalina Gomez-Quiles, Antonio Gomez-Exposito, Esther Romero-Ramos

Publikováno v: idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Energies
Volume 13
Issue 12
Pages: 3100
Energies, Vol 13, Iss 3100, p 3100 (2020)

State estimation of distribution systems typically relies on measurement sets with very low redundancy levels. In this paper, this fact is exploited by first solving a conventional load flow, using exclusively a critical set of measurements, and then

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c1a80969cbe117b67f181e5be632e21

Accuracy of Electrical Feeder Models for Distribution Systems Analysis

Autor: Esther Romero-Ramos, Luna Moreno-Diaz, Jorge Sanchez Cifuentes, Enrique Cordero-Herrera, Antonio Gomez-Exposito, Jacob Rodriguez Rivero

Publikováno v: 2018 International Conference on Smart Energy Systems and Technologies (SEST).

Low voltage distribution systems are coming to the fore mainly due to the massive presence of distributed generation. The challenges resulting from these new actors demand from reliable network models, which implies knowing detailed parameters not us

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::399ad6e08b86fe2618b48952b7668811
https://doi.org/10.1109/sest.2018.8495716

Hybrid real–complex current injection-based load flow formulation

Autor: Antonio Gomez-Exposito, Izudin Džafić, Esther Romero-Ramos

Publikováno v: Electric Power Systems Research. 119:237-246

This paper presents a new current injection-based load flow procedure in which the Y-bus matrix becomes the main building block of the Jacobian. Starting from a conventional complex formulation, an augmented incremental model is developed comprising

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7de574ae9885d90e77e116cbdec85582
https://doi.org/10.1016/j.epsr.2014.10.002