Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter

Fatih Evran

doi:10.17798/bitlisfen.1708528

Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter

Abstract

This study presents the design and analysis of a Luenberger observer with aggressively placed poles for a buck DC–DC converter. The objective is to estimate the inductor current and output voltage using only the measured output voltage, thereby enabling state feedback control in systems where current sensing is impractical or costly. A state-space model of the converter is derived, and the observer poles are placed sufficiently far in the left-half plane to ensure rapid estimation-error decay while maintaining numerical robustness. To validate the performance of the observer, MATLAB simulations are conducted under both nominal conditions and step changes in load and input voltage. Even when faced with abrupt disturbances, the results demonstrate that the proposed observer accurately reconstructs the unmeasured state variables with minimal delay, highlighting its robust performance. This makes the proposed observer a promising approach for advanced control schemes where full state feedback is essential.

Keywords

Ethical Statement

The study is complied with research and publication ethics.

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Details

Primary Language

English

Subjects

Electrical Machines and Drives, Electrical Engineering (Other)

Journal Section

Research Article

Authors

Fatih Evran ^*
0000-0002-3251-8459
Türkiye

Publication Date

December 31, 2025

Submission Date

May 28, 2025

Acceptance Date

October 6, 2025

Published in Issue

Year 2025 Volume: 14 Number: 4

DOI

https://doi.org/10.17798/bitlisfen.1708528

IZ

https://izlik.org/JA57XJ56DB

Cite

RIS / Bibtex

APA

Evran, F. (2025). Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, 14(4), 2137-2154. https://doi.org/10.17798/bitlisfen.1708528

AMA

1.Evran F. Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2025;14(4):2137-2154. doi:10.17798/bitlisfen.1708528

Chicago

Evran, Fatih. 2025. “Design and Analysis of Luenberger Observer With Aggressive Pole Placement for Buck Converter”. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 14 (4): 2137-54. https://doi.org/10.17798/bitlisfen.1708528.

EndNote

Evran F (December 1, 2025) Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 14 4 2137–2154.

IEEE

[1]F. Evran, “Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter”, Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, vol. 14, no. 4, pp. 2137–2154, Dec. 2025, doi: 10.17798/bitlisfen.1708528.

ISNAD

Evran, Fatih. “Design and Analysis of Luenberger Observer With Aggressive Pole Placement for Buck Converter”. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 14/4 (December 1, 2025): 2137-2154. https://doi.org/10.17798/bitlisfen.1708528.

JAMA

1.Evran F. Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2025;14:2137–2154.

MLA

Evran, Fatih. “Design and Analysis of Luenberger Observer With Aggressive Pole Placement for Buck Converter”. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, vol. 14, no. 4, Dec. 2025, pp. 2137-54, doi:10.17798/bitlisfen.1708528.

Vancouver

1.Fatih Evran. Design and Analysis of Luenberger Observer with Aggressive Pole Placement for Buck Converter. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2025 Dec. 1;14(4):2137-54. doi:10.17798/bitlisfen.1708528