Yet another tutorial of disturbance observer: robust stabilization and recovery of nominal performance

H Shim, G Park, Y Joo, J Back, NH Jo - Control Theory and Technology, 2016 - Springer
This paper presents a tutorial-style review on the recent results about the disturbance
observer (DOB) in view of robust stabilization and recovery of the nominal performance. The …

Disturbance observer approach for fuel-efficient heavy-duty vehicle platooning

G Na, G Park, V Turri, KH Johansson… - Vehicle System …, 2020 - Taylor & Francis
Heavy-duty vehicle platooning has received much attention as a method to reduce fuel
consumption by keeping inter-vehicle distance short. When a platoon follows a fuel-optimal …

Data-driven disturbance observer-based control: an active disturbance rejection approach

H Rojas-Cubides, J Cortés-Romero… - Control Theory and …, 2021 - Springer
In this paper, a data-driven method for disturbance estimation and rejection is presented.
The proposed approach is divided into two stages: an inner stabilization loop, to set the …

Robust Stability Condition and Simplified Design of Filter-embedded Disturbance Observer

H Chang, D Song, C Lee, H Shim - International Journal of Control …, 2024 - Springer
Embedding a filter is one of the simplest ways to enhance the disturbance attenuation
performance of feedback control systems. In this paper, we introduce the filter-embedded …

Local robust stability on compact set for nonlinear systems with continuous time controller against to aperiodic sampling and disturbance

K Umemoto, T Endo, F Matsuno - IET Control Theory & …, 2023 - Wiley Online Library
In this study, the stability of a sampled‐value control system with time‐and state‐dependent
disturbance and aperiodic sampling is investigated. To expand the application class of the …

Sensor attack detection for railway vehicles using topographic information

B Yu, Y Eun - 2017 17th International Conference on Control …, 2017 - ieeexplore.ieee.org
Attacks on control systems have become an important issue due to recently reported actual
cases. As a counter measure, attacks on sensors and their detection have been …

State-space analysis of discrete-time disturbance observer for sampled-data control systems

H Yun, G Park, H Shim… - 2016 American Control …, 2016 - ieeexplore.ieee.org
We present a state-space analysis of discrete-time disturbance observer (DOB) for a class of
sampled-data control systems. Unlike the continuous-time case, it is well-known that …

A generalized framework for robust stability analysis of discrete-time disturbance observer for sampled-data systems: A fast sampling approach

G Park, H Shim - … on Control, Automation and Systems (ICCAS), 2015 - ieeexplore.ieee.org
As a robust controller to compensate both model uncertainty and external disturbances, the
disturbance observer (DOB) has been widely employed in a number of industrial …

Arbitrarily large gain/phase margin can be achieved by DOB-based controller

H Kim, G Park, H Shim, NH Jo - 2016 16th International …, 2016 - ieeexplore.ieee.org
In this paper, we prove that the DOB-based feedback controller can guarantee arbitrarily
large but bounded gain margin and phase margin. This fact reminds that the DOB-based …

외란관측기기반제어연구동향및도전적문제들

박경훈, 백주훈 - 제어로봇시스템학회논문지, 2024 - dbpia.co.kr
Handling disturbance and model uncertainty is a long-standing but troublesome problem in
control design. Accordingly, the disturbance observer (DOB) has received keen interest over …