A tutorial review on process identification from step or relay feedback test

T Liu, QG Wang, HP Huang - Journal of Process control, 2013 - Elsevier
Step and relay feedback tests have been widely used for model identification in the process
industry. The corresponding identification methods developed in the past three decades are …

[图书][B] Industrial process identification and control design: step-test and relay-experiment-based methods

T Liu, F Gao - 2011 - books.google.com
Industrial Process Identification and Control Design is devoted to advanced identification
and control methods for the operation of continuous-time processes both with and without …

Parameter estimation using relay feedback

K Dharmalingam, T Thangavelu - Reviews in Chemical Engineering, 2019 - degruyter.com
In process industries, closed-loop step and closed-loop relay feedback tests are popularly
used for estimating model parameters. In this paper, different methods available in the …

Asymmetric relay autotuning–Practical features for industrial use

J Berner, T Hägglund, KJ Åström - Control Engineering Practice, 2016 - Elsevier
The relay autotuner provides a simple way of finding PID controller parameters. Even though
relay autotuning is much investigated in the literature, the practical aspects are not that well …

Identification of discrete-time output error model for industrial processes with time delay subject to load disturbance

S Dong, T Liu, W Wang, J Bao, Y Cao - Journal of Process Control, 2017 - Elsevier
In this paper, a bias-eliminated output error model identification method is proposed for
industrial processes with time delay subject to unknown load disturbance with deterministic …

Fractional-order PI controller design for integrating processes based on gain and phase margin specifications

E Cokmez, S Atiç, F Peker, I Kaya - IFAC-PapersOnLine, 2018 - Elsevier
Fractional-order PID controllers have been introduced as a general form of conventional PID
controllers and gained considerable attention latterly due to the flexibility of two extra …

Identification of Hammerstein systems with time delay under load disturbance

S Dong, T Liu, QG Wang - IET Control Theory & Applications, 2018 - Wiley Online Library
To cope with load disturbance often encountered when performing identification tests on
non‐linear systems with input delay in industrial applications, a bias‐eliminated …

Identification of process transfer function parameters in event-based PI control loops

J Sánchez, M Guinaldo, A Visioli, S Dormido - ISA transactions, 2018 - Elsevier
This paper presents a method to estimate the parameters of first and second order systems
with time delays with different accuracy levels for autotuning of event-based PI control loops …

Identification and autotuning of temperature-control system with application to injection molding

T Liu, K Yao, F Gao - IEEE transactions on control systems …, 2009 - ieeexplore.ieee.org
Motivated by the practical barrel-temperature control of injection molding, this paper
proposes two identification methods and a united control scheme for general temperature …

Time-delay identification in dynamic processes with disturbance via correlation analysis

LJ Li, TT Dong, S Zhang, XX Zhang, SP Yang - Control Engineering …, 2017 - Elsevier
A time-delay identification algorithm in closed-loop dynamic processes with disturbance
based on maximum correlation analysis was proposed in this paper. To denoise the output …