Linear ADRC is equivalent to PID with set-point weighting and measurement filter

Fuente: arXiv
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Main Author: Carlson, Fredrik Bagge
Format: Preprint
Published: 2025
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author Carlson, Fredrik Bagge
author_facet Carlson, Fredrik Bagge
contents We show that linear Active Disturbance-Rejection Control (ADRC) tuned using the "bandwidth method" is equivalent to PI(D) control with set-point weighting and a lowpass filter on the measurement signal. We also provide simple expressions that make it possible to implement linear ADRC for first and second-order systems using commonplace two degree-of-freedom PID implementations. The expressions are equivalent to ADRC in the response from measurements, and a slight approximation in the response from references.
format Preprint
id arxiv_https___arxiv_org_abs_2501_11374
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Linear ADRC is equivalent to PID with set-point weighting and measurement filter
Carlson, Fredrik Bagge
Systems and Control
We show that linear Active Disturbance-Rejection Control (ADRC) tuned using the "bandwidth method" is equivalent to PI(D) control with set-point weighting and a lowpass filter on the measurement signal. We also provide simple expressions that make it possible to implement linear ADRC for first and second-order systems using commonplace two degree-of-freedom PID implementations. The expressions are equivalent to ADRC in the response from measurements, and a slight approximation in the response from references.
title Linear ADRC is equivalent to PID with set-point weighting and measurement filter
topic Systems and Control
url https://arxiv.org/abs/2501.11374