Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers

In this paper, a pole-independent, single-input, multi-output explicit linear MPC controller is proposed to stabilize the fourth-order cart–inverted-pendulum system around the desired equilibrium points. To circumvent an obvious stability problem, a generalized prediction model is proposed that yiel...

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Main Authors: Lotfi Messikh, El-Hadi Guechi, Sašo Blažič
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/1/243
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author Lotfi Messikh
El-Hadi Guechi
Sašo Blažič
author_facet Lotfi Messikh
El-Hadi Guechi
Sašo Blažič
author_sort Lotfi Messikh
collection DOAJ
description In this paper, a pole-independent, single-input, multi-output explicit linear MPC controller is proposed to stabilize the fourth-order cart–inverted-pendulum system around the desired equilibrium points. To circumvent an obvious stability problem, a generalized prediction model is proposed that yields an MPC controller with four tuning parameters. The first two parameters, namely the horizon time and the relative cart–pendulum weight factor, are automatically adjusted to ensure a priori prescribed system gain margin and fast pendulum response while the remaining two parameters, namely the pendulum and cart velocity weight factors, are maintained as free tuning parameters. The comparison of the proposed method with some optimal control methods in the absence of disturbance input shows an obvious advantage in the average peak efficiency in favor of the proposed SIMO MPC controller at the price of slightly reduced speed efficiency. Additionally, none of the compared controllers can achieve a system gain margin greater than 1.63, while the proposed one can go beyond that limit at the price of additional degradation in the speed efficiency.
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spelling doaj.art-67fb9c5a757847c89ab85d9f72456c7b2023-11-23T12:19:14ZengMDPI AGSensors1424-82202021-12-0122124310.3390/s22010243Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC ControllersLotfi Messikh0El-Hadi Guechi1Sašo Blažič2Laboratoire d’Automatique de Skikda (LAS), Département de Génie Électrique, Faculté de Technologie, Université 20 Août 1955, BP 26, Route El-Hadaeik, Skikda 21000, AlgeriaLaboratoire d’Automatique de Skikda (LAS), Département de Génie Électrique, Faculté de Technologie, Université 20 Août 1955, BP 26, Route El-Hadaeik, Skikda 21000, AlgeriaFaculty of Electrical Engineering, University of Ljubljana, Tržaška 25, 1000 Ljubljana, SloveniaIn this paper, a pole-independent, single-input, multi-output explicit linear MPC controller is proposed to stabilize the fourth-order cart–inverted-pendulum system around the desired equilibrium points. To circumvent an obvious stability problem, a generalized prediction model is proposed that yields an MPC controller with four tuning parameters. The first two parameters, namely the horizon time and the relative cart–pendulum weight factor, are automatically adjusted to ensure a priori prescribed system gain margin and fast pendulum response while the remaining two parameters, namely the pendulum and cart velocity weight factors, are maintained as free tuning parameters. The comparison of the proposed method with some optimal control methods in the absence of disturbance input shows an obvious advantage in the average peak efficiency in favor of the proposed SIMO MPC controller at the price of slightly reduced speed efficiency. Additionally, none of the compared controllers can achieve a system gain margin greater than 1.63, while the proposed one can go beyond that limit at the price of additional degradation in the speed efficiency.https://www.mdpi.com/1424-8220/22/1/243cart–inverted pendulum (CIP) systemexplicit control scheme (ECS)cascade control schememodel predictive control (MPC)coefficient diagram method (CDM)coincident pole placement method (CPP)
spellingShingle Lotfi Messikh
El-Hadi Guechi
Sašo Blažič
Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
Sensors
cart–inverted pendulum (CIP) system
explicit control scheme (ECS)
cascade control scheme
model predictive control (MPC)
coefficient diagram method (CDM)
coincident pole placement method (CPP)
title Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
title_full Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
title_fullStr Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
title_full_unstemmed Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
title_short Stabilization of the Cart–Inverted-Pendulum System Using State-Feedback Pole-Independent MPC Controllers
title_sort stabilization of the cart inverted pendulum system using state feedback pole independent mpc controllers
topic cart–inverted pendulum (CIP) system
explicit control scheme (ECS)
cascade control scheme
model predictive control (MPC)
coefficient diagram method (CDM)
coincident pole placement method (CPP)
url https://www.mdpi.com/1424-8220/22/1/243
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