Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter

In this paper, a robust estimation method for estimating the power system harmonics is proposed by using the optimal finite impulse response (FIR) filter. The optimal FIR filter is applied to the state space representation of the noisy current or voltage signal and estimates the magnitude and phase-...

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Main Authors: Bo-kyu Kwon, Soohee Han, Kwang Y. Lee
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/7/1811
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author Bo-kyu Kwon
Soohee Han
Kwang Y. Lee
author_facet Bo-kyu Kwon
Soohee Han
Kwang Y. Lee
author_sort Bo-kyu Kwon
collection DOAJ
description In this paper, a robust estimation method for estimating the power system harmonics is proposed by using the optimal finite impulse response (FIR) filter. The optimal FIR filter is applied to the state space representation of the noisy current or voltage signal and estimates the magnitude and phase-angle of the harmonic components. Due to the FIR structure, the FIR filter is more robust against model uncertainty than the Kalman filter. Hence, the FIR filter-based method will give a more robust solution for the power system harmonic estimation than the previous Kalman filter-based approaches. The performance and robustness of the proposed method are verified through simulation. Moreover, the proposed method is employed in the power conditioning system to estimate the harmonic components and total harmonic distortions.
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spelling doaj.art-2fb63f7f8cf14ca59a496381b8e50a0f2022-12-22T04:22:45ZengMDPI AGEnergies1996-10732018-07-01117181110.3390/en11071811en11071811Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response FilterBo-kyu Kwon0Soohee Han1Kwang Y. Lee2Department of Control and Instrumentation Engineering, Kangwon National University, Gangwon-do 24341, KoreaDepartment of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, KoreaDepartment of Electrical and Computer Engineering, Baylor University, Waco, TX 76798, USAIn this paper, a robust estimation method for estimating the power system harmonics is proposed by using the optimal finite impulse response (FIR) filter. The optimal FIR filter is applied to the state space representation of the noisy current or voltage signal and estimates the magnitude and phase-angle of the harmonic components. Due to the FIR structure, the FIR filter is more robust against model uncertainty than the Kalman filter. Hence, the FIR filter-based method will give a more robust solution for the power system harmonic estimation than the previous Kalman filter-based approaches. The performance and robustness of the proposed method are verified through simulation. Moreover, the proposed method is employed in the power conditioning system to estimate the harmonic components and total harmonic distortions.http://www.mdpi.com/1996-1073/11/7/1811robust harmonics estimationpower system harmonicsoptimal FIR filterpower conditioning systemtotal harmonic distortions
spellingShingle Bo-kyu Kwon
Soohee Han
Kwang Y. Lee
Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
Energies
robust harmonics estimation
power system harmonics
optimal FIR filter
power conditioning system
total harmonic distortions
title Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
title_full Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
title_fullStr Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
title_full_unstemmed Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
title_short Robust Estimation and Tracking of Power System Harmonics Using an Optimal Finite Impulse Response Filter
title_sort robust estimation and tracking of power system harmonics using an optimal finite impulse response filter
topic robust harmonics estimation
power system harmonics
optimal FIR filter
power conditioning system
total harmonic distortions
url http://www.mdpi.com/1996-1073/11/7/1811
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