Smart distribution network voltage estimation using PMU technology considering zero injection constraints.

Autor: Swathi Tangi, D N Gaonkar, Ramakrishna S S Nuvvula, Polamarasetty P Kumar, Ilhami Colak, Ahmad F Tazay, Mohamed I Mosaad
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: PLoS ONE, Vol 19, Iss 3, p e0293616 (2024)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0293616&type=printable
Popis: To properly control the network of the power system and ensure its protection, Phasor measurement units (PMUs) must be used to monitor the network's operation. PMUs can provide synchronized real-time measurements. These measurements can be used for state estimation, fault detection and diagnosis, and other grid control applications. Conventional state estimation methods use weighting factors to balance the different types of measurements, and zero injection measurements can lead to large weighting factors that can introduce computational errors. The offered methods are designed to ensure that these zero injection criteria can be strictly satisfied while calculating the voltage profile and observability of the various distribution networks without sacrificing computing efficiency. The proposed method's viability is assessed using standard IEEE distribution networks. MATLAB coding is used to simulate the case analyses. Overall, the study provides a valuable contribution to the field of power distribution system monitoring and control by simplifying the process of determining the optimal locations for PMUs in a distribution network and assessing the impact of ZI buses on the voltage profile of the system.
Databáze: Directory of Open Access Journals
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