Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications

This article solves the problem caused by high level current feedback gain setting for fast responsiveness of magnetic levitation systems considering the current dynamics and presents advanced nonlinear positioning technology without plant parameter information. The main features of this study are s...

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Main Authors: Sung Hyun You, Ki-Chan Kim, Hyun Ho Kang, Kwan Soo Kim, Seok-Kyoon Kim
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9810229/
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author Sung Hyun You
Ki-Chan Kim
Hyun Ho Kang
Kwan Soo Kim
Seok-Kyoon Kim
author_facet Sung Hyun You
Ki-Chan Kim
Hyun Ho Kang
Kwan Soo Kim
Seok-Kyoon Kim
author_sort Sung Hyun You
collection DOAJ
description This article solves the problem caused by high level current feedback gain setting for fast responsiveness of magnetic levitation systems considering the current dynamics and presents advanced nonlinear positioning technology without plant parameter information. The main features of this study are summarized as follows: First, current control demonstrates current ripple reduction and overall performance guarantee through a low feedback gain in the steady state, including a dynamic feedback loop increased by an error variable magnitude in the transient period. Second, the plant parameter information-free velocity observer replaces the observer output error integral action with the disturbance estimation action to improve the closed-loop performance. The simulation results reveal the practical advantages derived from the contributions of this study.
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spelling doaj.art-b7fd71c2e37a4c41823a48bc384966fc2022-12-22T02:51:55ZengIEEEIEEE Access2169-35362022-01-0110701437015310.1109/ACCESS.2022.31870039810229Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV ApplicationsSung Hyun You0https://orcid.org/0000-0002-8781-2823Ki-Chan Kim1https://orcid.org/0000-0002-5600-9923Hyun Ho Kang2https://orcid.org/0000-0001-5385-3144Kwan Soo Kim3https://orcid.org/0000-0002-2471-0088Seok-Kyoon Kim4https://orcid.org/0000-0003-4114-445XDepartment of Electronic Engineering, Chosun University, Gwangju, South KoreaDepartment of Electrical Engineering, Hanbat National University, Daejeon, South KoreaSchool of Electrical Engineering, Korea University, Seoul, South KoreaSchool of Electrical Engineering, Korea University, Seoul, South KoreaDepartment of Creative Convergence Engineering, Hanbat National University, Daejeon, South KoreaThis article solves the problem caused by high level current feedback gain setting for fast responsiveness of magnetic levitation systems considering the current dynamics and presents advanced nonlinear positioning technology without plant parameter information. The main features of this study are summarized as follows: First, current control demonstrates current ripple reduction and overall performance guarantee through a low feedback gain in the steady state, including a dynamic feedback loop increased by an error variable magnitude in the transient period. Second, the plant parameter information-free velocity observer replaces the observer output error integral action with the disturbance estimation action to improve the closed-loop performance. The simulation results reveal the practical advantages derived from the contributions of this study.https://ieeexplore.ieee.org/document/9810229/Magnetic levitationpositioningvariable cut-off frequencyvelocity observerdisturbance observer
spellingShingle Sung Hyun You
Ki-Chan Kim
Hyun Ho Kang
Kwan Soo Kim
Seok-Kyoon Kim
Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
IEEE Access
Magnetic levitation
positioning
variable cut-off frequency
velocity observer
disturbance observer
title Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
title_full Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
title_fullStr Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
title_full_unstemmed Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
title_short Nonlinear Positioning Technique via Dynamic Current Cut-Off Frequency and Observer-Based Pole-Zero Cancellation Approaches for MAGLEV Applications
title_sort nonlinear positioning technique via dynamic current cut off frequency and observer based pole zero cancellation approaches for maglev applications
topic Magnetic levitation
positioning
variable cut-off frequency
velocity observer
disturbance observer
url https://ieeexplore.ieee.org/document/9810229/
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