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Type: Artigo
Title: ARMAX-based method for inertial constant estimation of generation units using synchrophasors
Author: Lugnani, L.
Dotta, D.
Lackner, C.
Chow, J.
Abstract: With the increase of wind and solar power plants connected to the grid, frequency stability has become a concern for transmission system operators. The large penetration of these sources reduces the inertia of the system, which naturally reacts to active power perturbations. In this scenario, a method capable of estimating the inertia constant, as perceived by a particular bus, is of practical importance. This paper presents a novel methodology to automatically assess the power system inertial constant using an autoregressive moving average exogenous input (ARMAX) model and demonstrate it using power system disturbance responses measured by a Wide-Area Measurement System (WAMS). The proposed approach can be divided into three parts: (i) Time window selection, which includes the identification of the start of the disturbance as well as the inertial response; (ii) A low-order ARMAX model method to estimate the constant of inertia as perceived by a particular bus; (iii) Accuracy evaluation. The proposed method is evaluated considering simulated signals corrupted with noise and outliers as well as real measurements from the New York transmission system
Subject: Sistemas de energia elétrica
Energia eólica
Energia solar
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.epsr.2019.106097
Date Issue: 2020
Appears in Collections:FEEC - Artigos e Outros Documentos

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