Extended state observer-based nonsingular terminal sliding mode controller for a DC-DC buck converter with disturbances: theoretical analysis and experimental verification

Shuwang Wang; Shengquan Li; Jinya Su; Juan Li; Luyao Zhang

doi:10.1080/00207179.2022.2063192

Extended state observer-based nonsingular terminal sliding mode controller for a DC-DC buck converter with disturbances: theoretical analysis and experimental verification

Shuwang Wang, Shengquan Li^*, Jinya Su, Juan Li, Luyao Zhang

^*Corresponding author for this work

Yangzhou University

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

9 Citations (Scopus)

Abstract

This paper develops a nonsingular terminal sliding mode controller (NTSMC) based on extended state observer (ESO) for a buck converter subject to load disturbances and input voltage variations. First, a novel modeling method is developed to transform the matched and mismatched disturbances caused by load resistance and input voltage variations into a uniform matched total disturbance. Second, an ESO is established to estimate the differential of the output voltage and the total disturbance. Third, a NTSMC based on ESO is designed to achieve faster tracking speed and better tracking accuracy around the expected voltage. In addition, the theoretical stability of the proposed controller is analyzed by a Lyapunov stability criterion. Finally, both simulation and experimental results show that the proposed NTSMC-ESO controller with the novel modeling method can attenuate the input voltage variation effectively and has a better load disturbance rejection ability than the reduced-order ESO based sliding mode controller.

Original language	English
Pages (from-to)	1661-1671
Number of pages	11
Journal	International Journal of Control
Volume	96
Issue number	7
Early online date	19 Apr 2022
DOIs	https://doi.org/10.1080/00207179.2022.2063192
Publication status	Published - Jun 2023

Bibliographical note

This work was supported in part by the National Natural Science Foundation of China [grant number 61903322], [grant number 61773335], State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources [grant number LAPS19003], State Key Laboratory of Mechanics and Control of Mechanical Structures [grant number MCMS-E-0520G01], Six Talent Peaks Foundation of Jiangsu Provincial [grant number KTHY2018038], the Natural Science Foundation of Yangzhou City for Outstanding Young Scholars [grant number YZ2017099], Postgraduate Research & Practice Innovation Program of Jiangsu Province [grant number SJCX20_1377].

Keywords

DC-DC buck converter
nonsingular terminal sliding mode control
extended state observer (ESO)
matched/mismatched disturbances

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https://repository.essex.ac.uk/32677/Licence: Unspecified

Cite this

@article{07623978e822487c8ecaa2a14ecc1dcf,

title = "Extended state observer-based nonsingular terminal sliding mode controller for a DC-DC buck converter with disturbances: theoretical analysis and experimental verification",

abstract = "This paper develops a nonsingular terminal sliding mode controller (NTSMC) based on extended state observer (ESO) for a buck converter subject to load disturbances and input voltage variations. First, a novel modeling method is developed to transform the matched and mismatched disturbances caused by load resistance and input voltage variations into a uniform matched total disturbance. Second, an ESO is established to estimate the differential of the output voltage and the total disturbance. Third, a NTSMC based on ESO is designed to achieve faster tracking speed and better tracking accuracy around the expected voltage. In addition, the theoretical stability of the proposed controller is analyzed by a Lyapunov stability criterion. Finally, both simulation and experimental results show that the proposed NTSMC-ESO controller with the novel modeling method can attenuate the input voltage variation effectively and has a better load disturbance rejection ability than the reduced-order ESO based sliding mode controller.",

keywords = "DC-DC buck converter, nonsingular terminal sliding mode control, extended state observer (ESO), matched/mismatched disturbances",

author = "Shuwang Wang and Shengquan Li and Jinya Su and Juan Li and Luyao Zhang",

note = "This work was supported in part by the National Natural Science Foundation of China [grant number 61903322], [grant number 61773335], State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources [grant number LAPS19003], State Key Laboratory of Mechanics and Control of Mechanical Structures [grant number MCMS-E-0520G01], Six Talent Peaks Foundation of Jiangsu Provincial [grant number KTHY2018038], the Natural Science Foundation of Yangzhou City for Outstanding Young Scholars [grant number YZ2017099], Postgraduate Research & Practice Innovation Program of Jiangsu Province [grant number SJCX20_1377].",

year = "2023",

month = jun,

doi = "10.1080/00207179.2022.2063192",

language = "English",

volume = "96",

pages = "1661--1671",

journal = "International Journal of Control",

publisher = "Taylor & Francis",

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TY - JOUR

T1 - Extended state observer-based nonsingular terminal sliding mode controller for a DC-DC buck converter with disturbances

T2 - theoretical analysis and experimental verification

AU - Wang, Shuwang

AU - Li, Shengquan

AU - Su, Jinya

AU - Li, Juan

AU - Zhang, Luyao

N1 - This work was supported in part by the National Natural Science Foundation of China [grant number 61903322], [grant number 61773335], State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources [grant number LAPS19003], State Key Laboratory of Mechanics and Control of Mechanical Structures [grant number MCMS-E-0520G01], Six Talent Peaks Foundation of Jiangsu Provincial [grant number KTHY2018038], the Natural Science Foundation of Yangzhou City for Outstanding Young Scholars [grant number YZ2017099], Postgraduate Research & Practice Innovation Program of Jiangsu Province [grant number SJCX20_1377].

PY - 2023/6

Y1 - 2023/6

N2 - This paper develops a nonsingular terminal sliding mode controller (NTSMC) based on extended state observer (ESO) for a buck converter subject to load disturbances and input voltage variations. First, a novel modeling method is developed to transform the matched and mismatched disturbances caused by load resistance and input voltage variations into a uniform matched total disturbance. Second, an ESO is established to estimate the differential of the output voltage and the total disturbance. Third, a NTSMC based on ESO is designed to achieve faster tracking speed and better tracking accuracy around the expected voltage. In addition, the theoretical stability of the proposed controller is analyzed by a Lyapunov stability criterion. Finally, both simulation and experimental results show that the proposed NTSMC-ESO controller with the novel modeling method can attenuate the input voltage variation effectively and has a better load disturbance rejection ability than the reduced-order ESO based sliding mode controller.

AB - This paper develops a nonsingular terminal sliding mode controller (NTSMC) based on extended state observer (ESO) for a buck converter subject to load disturbances and input voltage variations. First, a novel modeling method is developed to transform the matched and mismatched disturbances caused by load resistance and input voltage variations into a uniform matched total disturbance. Second, an ESO is established to estimate the differential of the output voltage and the total disturbance. Third, a NTSMC based on ESO is designed to achieve faster tracking speed and better tracking accuracy around the expected voltage. In addition, the theoretical stability of the proposed controller is analyzed by a Lyapunov stability criterion. Finally, both simulation and experimental results show that the proposed NTSMC-ESO controller with the novel modeling method can attenuate the input voltage variation effectively and has a better load disturbance rejection ability than the reduced-order ESO based sliding mode controller.

KW - DC-DC buck converter

KW - nonsingular terminal sliding mode control

KW - extended state observer (ESO)

KW - matched/mismatched disturbances

U2 - 10.1080/00207179.2022.2063192

DO - 10.1080/00207179.2022.2063192

M3 - Article

VL - 96

SP - 1661

EP - 1671

JO - International Journal of Control

JF - International Journal of Control

IS - 7

ER -

Extended state observer-based nonsingular terminal sliding mode controller for a DC-DC buck converter with disturbances: theoretical analysis and experimental verification

Abstract

Bibliographical note

Keywords

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