Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications

A technique for conducting online estimation of the intrinsic parameters of encapsulated three-phase harmonic filter capacitors is presented. The concept is based on firstly sampling the line voltage and current associated with the encapsulated capacitor, then formulating a capacitor current estimat...

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Autores principales:	Wai-Kwan Lee, Henry Shu-Hung Chung, Wing-Hong Ricky Lau
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Power electronics encapsulated power capacitors capacitance capacitance measurement Internet of Things (IoT) least squares methods Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/e2c54aedbf0144de8cc8886236cd3ada
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spelling	oai:doaj.org-article:e2c54aedbf0144de8cc8886236cd3ada2021-11-18T00:07:05ZOnline Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications2169-353610.1109/ACCESS.2021.3125054https://doaj.org/article/e2c54aedbf0144de8cc8886236cd3ada2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9599682/https://doaj.org/toc/2169-3536A technique for conducting online estimation of the intrinsic parameters of encapsulated three-phase harmonic filter capacitors is presented. The concept is based on firstly sampling the line voltage and current associated with the encapsulated capacitor, then formulating a capacitor current estimator to estimate the line currents with the sampled line voltages, and finally using the errors of the estimated and actual line currents to estimate the intrinsic parameters with a modified particle swarm optimization algorithm. A decoupled technique is formulated to estimate the unmeasurable circulating current in the encapsulated capacitor with the measured line voltages. A prototype for estimating the intrinsic parameters of an encapsulated three-phase capacitor in the harmonic filter for an adjustable speed drive for a 1.1kW motor-generator set has been built and evaluated. To facilitate the application of the proposed technology for Internet-of-Things (IoT) devices, the impact of different durations, sampling frequencies, and data lengths on the estimation accuracy is evaluated. The results are favorably compared with the theoretical predictions and the measurement results obtained on a calibrated network analyzer. In addition, the performance of the proposed technique is favorably compared with the Trust-Region-Reflective Least Squares Method.Wai-Kwan LeeHenry Shu-Hung ChungWing-Hong Ricky LauIEEEarticlePower electronicsencapsulated power capacitorscapacitancecapacitance measurementInternet of Things (IoT)least squares methodsElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 150939-150950 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Power electronics encapsulated power capacitors capacitance capacitance measurement Internet of Things (IoT) least squares methods Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Power electronics encapsulated power capacitors capacitance capacitance measurement Internet of Things (IoT) least squares methods Electrical engineering. Electronics. Nuclear engineering TK1-9971 Wai-Kwan Lee Henry Shu-Hung Chung Wing-Hong Ricky Lau Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
description	A technique for conducting online estimation of the intrinsic parameters of encapsulated three-phase harmonic filter capacitors is presented. The concept is based on firstly sampling the line voltage and current associated with the encapsulated capacitor, then formulating a capacitor current estimator to estimate the line currents with the sampled line voltages, and finally using the errors of the estimated and actual line currents to estimate the intrinsic parameters with a modified particle swarm optimization algorithm. A decoupled technique is formulated to estimate the unmeasurable circulating current in the encapsulated capacitor with the measured line voltages. A prototype for estimating the intrinsic parameters of an encapsulated three-phase capacitor in the harmonic filter for an adjustable speed drive for a 1.1kW motor-generator set has been built and evaluated. To facilitate the application of the proposed technology for Internet-of-Things (IoT) devices, the impact of different durations, sampling frequencies, and data lengths on the estimation accuracy is evaluated. The results are favorably compared with the theoretical predictions and the measurement results obtained on a calibrated network analyzer. In addition, the performance of the proposed technique is favorably compared with the Trust-Region-Reflective Least Squares Method.
format	article
author	Wai-Kwan Lee Henry Shu-Hung Chung Wing-Hong Ricky Lau
author_facet	Wai-Kwan Lee Henry Shu-Hung Chung Wing-Hong Ricky Lau
author_sort	Wai-Kwan Lee
title	Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
title_short	Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
title_full	Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
title_fullStr	Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
title_full_unstemmed	Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications
title_sort	online estimation of intrinsic parameters of encapsulated three-phase harmonic filter capacitors for iot applications
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/e2c54aedbf0144de8cc8886236cd3ada
work_keys_str_mv	AT waikwanlee onlineestimationofintrinsicparametersofencapsulatedthreephaseharmonicfiltercapacitorsforiotapplications AT henryshuhungchung onlineestimationofintrinsicparametersofencapsulatedthreephaseharmonicfiltercapacitorsforiotapplications AT winghongrickylau onlineestimationofintrinsicparametersofencapsulatedthreephaseharmonicfiltercapacitorsforiotapplications
_version_	1718425256446656512

Online Estimation of Intrinsic Parameters of Encapsulated Three-Phase Harmonic Filter Capacitors for IoT Applications

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