Design of internal model control dead-time compensation scheme for first order plus dead-time systems

2018 ◽  
Vol 96 (12) ◽  
pp. 2553-2563 ◽  
Author(s):  
Arun R. Pathiran ◽  
Prakash Jagadeesan
Keyword(s):  
Internal Model ◽  
Dead Time ◽  
Internal Model Control ◽  
Compensation Scheme ◽  
First Order ◽  
Model Control ◽  
Dead Time Compensation ◽  
Time Systems

Controle Multimodelo de um Processo FOPDT por uma Abordagem IMC - Preditor de Smith Aplicada a um Sistema de Nível via CLP

2020 ◽  
Author(s):  
João Victor S. de Carvalho ◽  
Tiago G. de Oliveira ◽  
Fadul F. Rodor ◽  
Luiz F. Pugliese
Keyword(s):  
Internal Model ◽  
Dead Time ◽  
Internal Model Control ◽  
First Order ◽  
Model Control

Este artigo apresenta a implementação em um CLP (Controlador Lógico Programável) de uma estratégia de controle multimodelo. Na metodologia proposta, um sistema de nível não linear é linearizado ao redor de diferentes pontos de operação e um controlador PI (Proporcional Integral) local é sintonizado via estratégia IMC (Internal Model Control) em uma estrutura de preditor de Smith. Do desenvolvimento de cada controlador local, baseado em um ponto de operação específico, um escalonamento de ganhos é utilizado para selecionar a melhor ação de controle no ponto de operação em questão. Como o sistema de nível não apresenta atraso de transporte, um atraso será adicionado computacionalmente, tornado-o um FOPDT (First Order Plus Dead Time), a fim de avaliar a eficácia do preditor de Smith projetado. A implementação da estratégia de controle multimodelo é realizada no CLP Rockwell CompactLogix L30ERM de forma a atuar sobre a planta didática de nível Exsto XC221.

scholarly journals PERANCANGAN METODE INTERNAL MODEL CONTROL 2 DEGREE OF FREEDOM (IMC 2 DOF) UNTUK PENGENDALIAN MODEL SHELL HEAVY OIL FRACTIONATOR (SHOF)

TRANSIENT ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 40
Author(s):  
Fatamorgana Surgani ◽  
Budi Setiyono ◽  
Sumardi Sumardi
Keyword(s):  
Heavy Oil ◽  
Internal Model ◽  
Dead Time ◽  
Internal Model Control ◽  
Tuning Parameter ◽  
Relative Gain ◽  
Set Point ◽  
First Order ◽  
Model Control ◽  
Relative Gain Array

Shell Heavy Oil Fractionator (SHOF) adalah jenis kolom distilasi yang digunakan untuk memisahkan heavy oil mentah menjadi produk-produk yang diinginkan berdasarkan perbedaan titik didih dari masing-masing produk tersebut. Perancangan kendali pada SHOF memiliki beberapa kendala yang disebabkan oleh non-linearitas pada proses, interaksi multivariabel, adanya waktu tunda (dead time) yang panjang, dan adanya gangguan. Berdasarkan hal tersebut, dibutuhkan metode kendali yang mampu membuat respon sistem mengikuti perubahan set point dan meredam gangguan, sehingga keluaran komposisi produk sesuai dengan yang diharapkan. Pada penelitian ini dibahas perancangan metode IMC 2 DoF untuk pengendalian SHOF MIMO 3x3 terdesentralisasi dalam bentuk fungsi alih first order plus dead time (FOPDT), hal ini dikarenakan metode IMC 2 DoF merupakan salah satu jenis metode kendali modern yang mampu mengendalikan plant multivariabel dan meredam gangguan yang ada. Tuning parameter filter pada pengendali ini menggunakan empat metode tuning parameter filter IMC. Interaksi antar subsistem dikurangi dengan menerapkan metode Relative Gain Array dan melakukan decoupling. Berdasarkan seluruh pengujian yang telah dilakukan, pengendali IMC 2 DoF menggunakan decoupling metode tuning parameter filter Rivera memiliki jumlah nilai IAE terbaik dibandingkan dengan ketiga metode tuning lainnya dengan nilai IAE 93,9585 pada respon , 40,0476 pada respon , dan  0,0102 pada respon .

Analytical design of constraint handling optimal two parameter internal model control for dead-time processes

2019 ◽  
Vol 36 (3) ◽  
pp. 356-367 ◽  
Author(s):  
Rodrigue Tchamna ◽  
Muhammad Abdul Qyyum ◽  
Muhammad Zahoor ◽  
Camille Kamga ◽  
Ezra Kwok ◽  
...  
Keyword(s):  
Internal Model ◽  
Dead Time ◽  
Internal Model Control ◽  
Constraint Handling ◽  
Analytical Design ◽  
Model Control ◽  
Two Parameter

scholarly journals Design of Internal Model Control Based on an Optimal Control for a Servo System

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Hiromitsu Ogawa ◽  
Ryo Tanaka ◽  
Takahiro Murakami ◽  
Yoshihisa Ishida
Keyword(s):  
Optimal Control ◽  
Control System ◽  
Transfer Function ◽  
Internal Model ◽  
Dead Time ◽  
Servo System ◽  
Previous Method ◽  
Internal Model Control ◽  
Model Control ◽  
Disturbance Response

This paper describes a design of internal model control based on an optimal control for a servo system. The control system has the feedback based on the proposed disturbance compensator in the disturbance response. The compensator is designed to become the denominator of the transfer function without a dead time in the disturbance responses. The disturbance response of the proposed method is faster than that of the previous method.

scholarly journals Complete suppression of torque ripple in BLDC machines caused by back emf and dead time

2021 ◽  
Author(s):  
Miodrag Joksimovic ◽  
Emil Levi ◽  
Slobodan Vukosavic
Keyword(s):  
Dead Time ◽  
Torque Ripple ◽  
Internal Model Control ◽  
Complete Suppression ◽  
Brushless Dc Motors ◽  
Current Harmonics ◽  
Brushless Dc ◽  
Dc Motors ◽  
Model Control ◽  
Dead Time Compensation

<div>Abstract—This paper introduces a novel algorithm for suppresion of phase current harmonics in three-phase brushless dc motors caused by non-ideal back-emf waveform and dead-time effects. Proposed feedback acquisition chain obtains an exact information on all the relevant harmonics within each period of the fundamental. Design of the harmonic regulator based on the internal model control principle is given. The paper outlines the relevant details of implementation and the results of verification performed by both computer simulations and experimentally, using a laboratory prototype machine. Experimental results conducted in presence of non-sinusoidal back-emf and with erroneous dead time compensation prove the ability of the proposed solution to remove the stator current harmonics quickly, in just two fundamental periods.</div>

scholarly journals Anisochronic Internal Model Control Design

10.14311/482 ◽  
2003 ◽  
Vol 43 (5) ◽  
Author(s):  
T. Vyhlídal ◽  
P. Zítek
Keyword(s):  
System Dynamics ◽  
Internal Model ◽  
Closed Loop ◽  
Control Design ◽  
Internal Model Control ◽  
Loop System ◽  
Closed Loop System ◽  
First Order ◽  
Dominant Pole ◽  
Model Control

The features of internal model control (IMC) design based on the first order anisochronic model are investigated in this paper. The structure of the anisochronic model is chosen in order to fit both the dominant pole and the dominant zero of the system dynamics being approximated. Thanks to its fairly plain structure, the model is suitable for use in IMC design. However, use of the anisochronic model in IMC design may result in so-called neutral dynamics of the closed loop. This phenomenon is studied in this paper via analysing the spectra of the closed loop system.

Sign in / Sign up

Export Citation Format

Share Document