TY - JOUR

T1 - A Simple Frequency Estimator for Power Systems

AU - Ahmed, Hafiz

AU - Ushirobira, Rosane

AU - Efimov, Denis

PY - 2021/7/7

Y1 - 2021/7/7

N2 - Fast and accurate frequency estimation of an unbalanced three-phase power system in the presence of measurement offset is a challenging task. A simple to implement and tune method is proposed in this work through a delay-based linear-regression framework. Using two challenging scenarios, we verify the performance of our procedure in the presence of severe grid abnormalities, including voltage unbalance, harmonics, frequency jump, and dc offset. Comparative hardware-in-the-loop experimental results demonstrate the suitability of the proposed approach.

AB - Fast and accurate frequency estimation of an unbalanced three-phase power system in the presence of measurement offset is a challenging task. A simple to implement and tune method is proposed in this work through a delay-based linear-regression framework. Using two challenging scenarios, we verify the performance of our procedure in the presence of severe grid abnormalities, including voltage unbalance, harmonics, frequency jump, and dc offset. Comparative hardware-in-the-loop experimental results demonstrate the suitability of the proposed approach.

KW - Frequency estimation

KW - power systems

U2 - 10.1109/TIM.2021.3094249

DO - 10.1109/TIM.2021.3094249

M3 - Article

VL - 70

JO - IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

JF - IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

SN - 0018-9456

ER -