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https://open.uns.ac.rs/handle/123456789/8474
Назив: | A three-phase state estimation in active distribution networks | Аутори: | Ranković A. Maksimović B. Sarić, Andrija |
Датум издавања: | 1-јан-2014 | Часопис: | International Journal of Electrical Power and Energy Systems | Сажетак: | This paper presents the improved Weighted Least Square (WLS) based three-phase state estimation algorithm for active distribution networks. The three-phase component models are developed for characteristic types of transformers (respecting their winding connections), lines (three and four wires), loads (voltage dependent grounded-Y, ungrounded-Y and ungrounded-Δ) and distributed generation (DG) units (synchronous generator, induction generator and three-phase (three- and four-wire) electronically-coupled based DG units). The unmonitored (or partially monitored) powers of loads and DG units are initially estimated from normalized daily load profiles, or from external inputs (historical database/weather forecast), such as wind, sun and water inflow forecasts, respectively. These measurements are introduced with lower weights (treated as the pseudo-measurements in the proposed state estimation algorithm). The results and practical aspects of the proposed methodology are demonstrated on two characteristic examples: modified IEEE 13-bus test system and 322-bus real-world distribution network. © 2013 Elsevier Ltd. All rights reserved. | URI: | https://open.uns.ac.rs/handle/123456789/8474 | ISSN: | 1420615 | DOI: | 10.1016/j.ijepes.2013.07.001 |
Налази се у колекцијама: | FTN Publikacije/Publications |
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