Parameter Estimation in Electrical Distribution Networks

https://doi.org/10.58571/CNCA.AMCA.2025.037

Resumen: This paper presents two methods for the identification of line parameters in electrical distribution networks, considering two scenarios: neglecting and including shunt susceptance, corresponding to short and medium line models, respectively. The first method is based on Linear Least Squares (LSQ) and uses SCADA measurements of real and reactive power injections along with voltage phasors at each bus. This approach allows for linear estimation of both series and shunt parameters when voltage angle measurements are available. The second method employs a Weighted Least Squares (WLS) estimator using only SCADA data —voltage magnitudes and real/reactive power injections— to simultaneously estimate voltage angles and the series admittance of each line. Both approaches are numerically validated using a three-bus distribution system subject to a 24-hour load profile derived from real demand data.

¿Cómo citar?

López-Luna, O. & Maya-Ortiz, P. (2025). Parameter Estimation in Electrical Distribution Networks. Memorias del Congreso Nacional de Control Automático 2025, pp. 214-220. https://doi.org/10.58571/CNCA.AMCA.2025.037

Palabras clave

Parameter Estimation, Distribution Network, Nonlinear Estimation, Distribution Line Parameters.

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