Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude

Digital control for high switching frequency converter enables new features on DC-DC power conversion for a minimum cost. Frequency response identification is one such enabled functionality used in auto tunning, measurement of components to assess the converter’s state of health, or system stability...

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Main Authors: Marlon Granda, Cristina Fernandez, Andres Barrado, Pablo Zumel
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/9/3234
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author Marlon Granda
Cristina Fernandez
Andres Barrado
Pablo Zumel
author_facet Marlon Granda
Cristina Fernandez
Andres Barrado
Pablo Zumel
author_sort Marlon Granda
collection DOAJ
description Digital control for high switching frequency converter enables new features on DC-DC power conversion for a minimum cost. Frequency response identification is one such enabled functionality used in auto tunning, measurement of components to assess the converter’s state of health, or system stability monitoring. High accuracy, flexibility to operate in open or closed loop, and minimum impact in the converter’s regular operation are the frequency response identification system’s goals. We propose in this paper a nonparametric identification system addressing these main goals. First, it can autoadjust the perturbation size to reduce the perturbation’s impact on the converter’s output quantities. Second, as it is based on spectral analysis, it is suitable for open and closed-loop operation. Third, we demonstrate the identification system’s high accuracy, achieving a very low difference between the experimental measurements and the discrete model used as reference.
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spelling doaj.art-1b1583f6808542088c5cf41e761cb5ac2023-11-21T18:39:44ZengMDPI AGSensors1424-82202021-05-01219323410.3390/s21093234Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation AmplitudeMarlon Granda0Cristina Fernandez1Andres Barrado2Pablo Zumel3Power Electronics Systems Group (GSEP), Department of Electronic Technology, Universidad Carlos III de Madrid, 28911 Leganes, SpainPower Electronics Systems Group (GSEP), Department of Electronic Technology, Universidad Carlos III de Madrid, 28911 Leganes, SpainPower Electronics Systems Group (GSEP), Department of Electronic Technology, Universidad Carlos III de Madrid, 28911 Leganes, SpainPower Electronics Systems Group (GSEP), Department of Electronic Technology, Universidad Carlos III de Madrid, 28911 Leganes, SpainDigital control for high switching frequency converter enables new features on DC-DC power conversion for a minimum cost. Frequency response identification is one such enabled functionality used in auto tunning, measurement of components to assess the converter’s state of health, or system stability monitoring. High accuracy, flexibility to operate in open or closed loop, and minimum impact in the converter’s regular operation are the frequency response identification system’s goals. We propose in this paper a nonparametric identification system addressing these main goals. First, it can autoadjust the perturbation size to reduce the perturbation’s impact on the converter’s output quantities. Second, as it is based on spectral analysis, it is suitable for open and closed-loop operation. Third, we demonstrate the identification system’s high accuracy, achieving a very low difference between the experimental measurements and the discrete model used as reference.https://www.mdpi.com/1424-8220/21/9/3234digital controlpower convertersidentification
spellingShingle Marlon Granda
Cristina Fernandez
Andres Barrado
Pablo Zumel
Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
Sensors
digital control
power converters
identification
title Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
title_full Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
title_fullStr Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
title_full_unstemmed Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
title_short Nonparametric Frequency Response Identification for Dc-Dc Converters Based on Spectral Analysis with Automatic Determination of the Perturbation Amplitude
title_sort nonparametric frequency response identification for dc dc converters based on spectral analysis with automatic determination of the perturbation amplitude
topic digital control
power converters
identification
url https://www.mdpi.com/1424-8220/21/9/3234
work_keys_str_mv AT marlongranda nonparametricfrequencyresponseidentificationfordcdcconvertersbasedonspectralanalysiswithautomaticdeterminationoftheperturbationamplitude
AT cristinafernandez nonparametricfrequencyresponseidentificationfordcdcconvertersbasedonspectralanalysiswithautomaticdeterminationoftheperturbationamplitude
AT andresbarrado nonparametricfrequencyresponseidentificationfordcdcconvertersbasedonspectralanalysiswithautomaticdeterminationoftheperturbationamplitude
AT pablozumel nonparametricfrequencyresponseidentificationfordcdcconvertersbasedonspectralanalysiswithautomaticdeterminationoftheperturbationamplitude