A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty

This paper presents an optimal design and simulation of a novel enhanced model reference adaptive proportional–integral–derivative controller (MRAPIDC) for underactuated nonlinear systems with parametric uncertainty. The controller is applied to a cart-inverted pendulum mechanical system, a fourth-o...

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Main Authors: Ahmed Abduljabbar Mahmood, Mohamed Abderrahim
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Journal of Engineering
Online Access:http://dx.doi.org/10.1155/2024/8838138
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author Ahmed Abduljabbar Mahmood
Mohamed Abderrahim
author_facet Ahmed Abduljabbar Mahmood
Mohamed Abderrahim
author_sort Ahmed Abduljabbar Mahmood
collection DOAJ
description This paper presents an optimal design and simulation of a novel enhanced model reference adaptive proportional–integral–derivative controller (MRAPIDC) for underactuated nonlinear systems with parametric uncertainty. The controller is applied to a cart-inverted pendulum mechanical system, a fourth-order, nonminimum phase system with pronounced nonlinearity and unstable dynamics. This system includes a single input and multiple outputs, specifically the position and velocity of the cart, as well as the angle and angular velocity of the inverted pendulum arm. The main objective of the proposed controller is to maintain the pendulum in an upright position against gravity while moving the cart to a desired displacement regardless of parametric uncertainty, input variation, external disturbances, and random noise. The hybrid controller design is developed by combining the MRAPIDC design with controller gains applied to each output and incorporating the system adaptation error in a specific configuration. Optimal performance is achieved through parameter tuning via the social spider optimization (SSO) algorithm, and MIT (Massachusetts Institute of Technology) rule criteria are employed to ensure system stability. Performance improvements are demonstrated through several error indices, showing enhanced transient and steady-state responses compared to both the reference model adaptive controller and the conventional proportional–integral–derivative (PID) controller. The proposed controller can effectively achieve system stability with a short settling time of 2.55 s and establishes a steady swinging balance within 2.9 s.
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spelling doaj-art-478c26bfd87c4f97987dc3d1969af7272025-08-20T03:35:58ZengWileyJournal of Engineering2314-49122024-01-01202410.1155/2024/8838138A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric UncertaintyAhmed Abduljabbar Mahmood0Mohamed Abderrahim1Department of Systems Engineering and AutomationDepartment of Systems Engineering and AutomationThis paper presents an optimal design and simulation of a novel enhanced model reference adaptive proportional–integral–derivative controller (MRAPIDC) for underactuated nonlinear systems with parametric uncertainty. The controller is applied to a cart-inverted pendulum mechanical system, a fourth-order, nonminimum phase system with pronounced nonlinearity and unstable dynamics. This system includes a single input and multiple outputs, specifically the position and velocity of the cart, as well as the angle and angular velocity of the inverted pendulum arm. The main objective of the proposed controller is to maintain the pendulum in an upright position against gravity while moving the cart to a desired displacement regardless of parametric uncertainty, input variation, external disturbances, and random noise. The hybrid controller design is developed by combining the MRAPIDC design with controller gains applied to each output and incorporating the system adaptation error in a specific configuration. Optimal performance is achieved through parameter tuning via the social spider optimization (SSO) algorithm, and MIT (Massachusetts Institute of Technology) rule criteria are employed to ensure system stability. Performance improvements are demonstrated through several error indices, showing enhanced transient and steady-state responses compared to both the reference model adaptive controller and the conventional proportional–integral–derivative (PID) controller. The proposed controller can effectively achieve system stability with a short settling time of 2.55 s and establishes a steady swinging balance within 2.9 s.http://dx.doi.org/10.1155/2024/8838138
spellingShingle Ahmed Abduljabbar Mahmood
Mohamed Abderrahim
A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
Journal of Engineering
title A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
title_full A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
title_fullStr A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
title_full_unstemmed A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
title_short A Robust Hybrid MRAPID Controller Design for an Underactuated Nonlinear System With Parametric Uncertainty
title_sort robust hybrid mrapid controller design for an underactuated nonlinear system with parametric uncertainty
url http://dx.doi.org/10.1155/2024/8838138
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AT ahmedabduljabbarmahmood robusthybridmrapidcontrollerdesignforanunderactuatednonlinearsystemwithparametricuncertainty
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