PID Tuning via Desired Step Response Curve Fitting

Fuente: arXiv
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Main Author: Gulgonul, Senol
Format: Preprint
Published: 2025
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author Gulgonul, Senol
author_facet Gulgonul, Senol
contents This paper presents a PID tuning method based on step response curve fitting (PID-SRCF) that utilizes L2-norm minimization for precise reference tracking and explicit transient response shaping. The algorithm optimizes controller parameters by minimizing the root-mean-square error between desired and actual step responses. The proposed approach determines optimal PID parameters by matching any closed-loop response to a desired system step response. Practically a first-order plus time delay model or a second-order system with defined settling time and overshoot requirements are preferred. The method has open-source implementation using constrained nonlinear optimization in MATLAB. Comparative evaluations demonstrate that PID-SRCF can replace known analytical methods like Ziegler Nichols, Lambda Tuning, Pole Placement, Dominant Pole and MATLAB proprietary PID tuning applications.
format Preprint
id arxiv_https___arxiv_org_abs_2506_17655
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle PID Tuning via Desired Step Response Curve Fitting
Gulgonul, Senol
Systems and Control
This paper presents a PID tuning method based on step response curve fitting (PID-SRCF) that utilizes L2-norm minimization for precise reference tracking and explicit transient response shaping. The algorithm optimizes controller parameters by minimizing the root-mean-square error between desired and actual step responses. The proposed approach determines optimal PID parameters by matching any closed-loop response to a desired system step response. Practically a first-order plus time delay model or a second-order system with defined settling time and overshoot requirements are preferred. The method has open-source implementation using constrained nonlinear optimization in MATLAB. Comparative evaluations demonstrate that PID-SRCF can replace known analytical methods like Ziegler Nichols, Lambda Tuning, Pole Placement, Dominant Pole and MATLAB proprietary PID tuning applications.
title PID Tuning via Desired Step Response Curve Fitting
topic Systems and Control
url https://arxiv.org/abs/2506.17655