Model-Free Observer for Speed and Acceleration Estimations for Speed Servo System Applications

Seok Kyoon Kim; Kwan Soo Kim; Sun Lim; Choon Ki Ahn

doi:10.1109/TCSII.2022.3191718

Model-Free Observer for Speed and Acceleration Estimations for Speed Servo System Applications

Seok Kyoon Kim, Kwan Soo Kim, Sun Lim, Choon Ki Ahn

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

Abstract

This brief presents a speed and acceleration estimation mechanism combining a Luenberger-Type observer and a nonlinear second-order disturbance observer (DOB) using servo system angle measurements without system parameters and load information. The resultant observer has the following two contributions: (a) the inclusion of a system parameter information-free nonlinear DOB as a subsystem to ensure improved robustness and (b) the capability of performance assignment by tuning the scalar design factor without involving any matrix calculation processes. An experimental study validates the practical advantage of the proposed solution using a prototype 500 W dynamo system as a speed servo system.

Original language	English
Pages (from-to)	4944-4948
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	69
Issue number	12
DOIs	https://doi.org/10.1109/TCSII.2022.3191718
Publication status	Published - 2022 Dec 1

Keywords

State estimation
disturbance estimation
nonlinear filtering
servo systems

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCSII.2022.3191718

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abstract = "This brief presents a speed and acceleration estimation mechanism combining a Luenberger-Type observer and a nonlinear second-order disturbance observer (DOB) using servo system angle measurements without system parameters and load information. The resultant observer has the following two contributions: (a) the inclusion of a system parameter information-free nonlinear DOB as a subsystem to ensure improved robustness and (b) the capability of performance assignment by tuning the scalar design factor without involving any matrix calculation processes. An experimental study validates the practical advantage of the proposed solution using a prototype 500 W dynamo system as a speed servo system.",

keywords = "State estimation, disturbance estimation, nonlinear filtering, servo systems",

author = "Kim, {Seok Kyoon} and Kim, {Kwan Soo} and Sun Lim and Ahn, {Choon Ki}",

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AU - Kim, Seok Kyoon

AU - Kim, Kwan Soo

AU - Lim, Sun

AU - Ahn, Choon Ki

PY - 2022/12/1

Y1 - 2022/12/1

N2 - This brief presents a speed and acceleration estimation mechanism combining a Luenberger-Type observer and a nonlinear second-order disturbance observer (DOB) using servo system angle measurements without system parameters and load information. The resultant observer has the following two contributions: (a) the inclusion of a system parameter information-free nonlinear DOB as a subsystem to ensure improved robustness and (b) the capability of performance assignment by tuning the scalar design factor without involving any matrix calculation processes. An experimental study validates the practical advantage of the proposed solution using a prototype 500 W dynamo system as a speed servo system.

AB - This brief presents a speed and acceleration estimation mechanism combining a Luenberger-Type observer and a nonlinear second-order disturbance observer (DOB) using servo system angle measurements without system parameters and load information. The resultant observer has the following two contributions: (a) the inclusion of a system parameter information-free nonlinear DOB as a subsystem to ensure improved robustness and (b) the capability of performance assignment by tuning the scalar design factor without involving any matrix calculation processes. An experimental study validates the practical advantage of the proposed solution using a prototype 500 W dynamo system as a speed servo system.

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KW - nonlinear filtering

KW - servo systems

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JO - IEEE Transactions on Circuits and Systems I: Regular Papers

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ER -

Model-Free Observer for Speed and Acceleration Estimations for Speed Servo System Applications

Abstract

Keywords

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