Output-Voltage-Tracking Control for Buck Converters Using Variable Convergence Rate Mechanism without Current Feedback

Seok Kyoon Kim; Ki Chan Kim; Choon Ki Ahn

doi:10.1109/TIE.2021.3065610

Output-Voltage-Tracking Control for Buck Converters Using Variable Convergence Rate Mechanism without Current Feedback

Seok Kyoon Kim, Ki Chan Kim, Choon Ki Ahn

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This article aims to accomplish the output voltage tracking task for buck converters without current feedback, diminishing the performance degradation from model-plant mismatches and load variations. The following contributions overcome these difficulties: a) the combination of Luenberger and disturbance observer (DOB) techniques for a parameter-independent voltage-derivative observer; b) the pole-zero cancellation control incorporating the DOB and active-damping injection techniques; and c) the exponential convergence guarantee to the target tracking system subject to the variable convergence rate mechanism. Convincing experimental evidence confirms the effectiveness of proposed tracking control using a prototype 3 kW buck converter control system.

Original language	English
Pages (from-to)	2938-2946
Number of pages	9
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	3
DOIs	https://doi.org/10.1109/TIE.2021.3065610
Publication status	Published - 2022 Mar 1

Keywords

Active-damping
buck converter
observers
variable convergence

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/TIE.2021.3065610

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title = "Output-Voltage-Tracking Control for Buck Converters Using Variable Convergence Rate Mechanism without Current Feedback",

abstract = "This article aims to accomplish the output voltage tracking task for buck converters without current feedback, diminishing the performance degradation from model-plant mismatches and load variations. The following contributions overcome these difficulties: a) the combination of Luenberger and disturbance observer (DOB) techniques for a parameter-independent voltage-derivative observer; b) the pole-zero cancellation control incorporating the DOB and active-damping injection techniques; and c) the exponential convergence guarantee to the target tracking system subject to the variable convergence rate mechanism. Convincing experimental evidence confirms the effectiveness of proposed tracking control using a prototype 3 kW buck converter control system. ",

keywords = "Active-damping, buck converter, observers, variable convergence",

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N2 - This article aims to accomplish the output voltage tracking task for buck converters without current feedback, diminishing the performance degradation from model-plant mismatches and load variations. The following contributions overcome these difficulties: a) the combination of Luenberger and disturbance observer (DOB) techniques for a parameter-independent voltage-derivative observer; b) the pole-zero cancellation control incorporating the DOB and active-damping injection techniques; and c) the exponential convergence guarantee to the target tracking system subject to the variable convergence rate mechanism. Convincing experimental evidence confirms the effectiveness of proposed tracking control using a prototype 3 kW buck converter control system.

AB - This article aims to accomplish the output voltage tracking task for buck converters without current feedback, diminishing the performance degradation from model-plant mismatches and load variations. The following contributions overcome these difficulties: a) the combination of Luenberger and disturbance observer (DOB) techniques for a parameter-independent voltage-derivative observer; b) the pole-zero cancellation control incorporating the DOB and active-damping injection techniques; and c) the exponential convergence guarantee to the target tracking system subject to the variable convergence rate mechanism. Convincing experimental evidence confirms the effectiveness of proposed tracking control using a prototype 3 kW buck converter control system.

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JF - IEEE Transactions on Industrial Electronics

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Output-Voltage-Tracking Control for Buck Converters Using Variable Convergence Rate Mechanism without Current Feedback

Abstract

Keywords

ASJC Scopus subject areas

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