Design of a multivariable neural controller for control of a nonlinear MIMO plant

The paper presents the training problem of a set of neural nets to obtain a (gain-scheduling, adaptive) multivariable neural controller for control of a nonlinear MIMO dynamic process represented by a mathematical model of Low-Frequency (LF) motions of a drillship over the drilling point at the sea...

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Main Authors: Bańka Stanisław, Dworak Paweł, Jaroszewski Krzysztof
Format: Article
Language:English
Published: Sciendo 2014-06-01
Series:International Journal of Applied Mathematics and Computer Science
Subjects:
Online Access:https://doi.org/10.2478/amcs-2014-0027
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author Bańka Stanisław
Dworak Paweł
Jaroszewski Krzysztof
author_facet Bańka Stanisław
Dworak Paweł
Jaroszewski Krzysztof
author_sort Bańka Stanisław
collection DOAJ
description The paper presents the training problem of a set of neural nets to obtain a (gain-scheduling, adaptive) multivariable neural controller for control of a nonlinear MIMO dynamic process represented by a mathematical model of Low-Frequency (LF) motions of a drillship over the drilling point at the sea bottom. The designed neural controller contains a set of neural nets that determine values of its parameters chosen on the basis of two measured auxiliary signals. These are the ship’s current forward speed measured with respect to water and the systematically calculated difference between the course angle and the sea current (yaw angle). Four different methods for synthesis of multivariable modal controllers are used to obtain source data for training the neural controller with parameters reproduced by neural networks. Neural networks are designed on the basis of 3650 modal controllers obtained with the use of the pole placement technique after having linearized the model of LF motions made by the vessel at its nominal operating points in steady states that are dependent on the specified yaw angle and the sea current velocity. The final part of the paper includes simulation results of system operation with a neural controller along with conclusions and final remarks.
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spelling doaj.art-cfe42b1627ec410c8ff4899c7c7ba6f82022-12-21T22:36:35ZengSciendoInternational Journal of Applied Mathematics and Computer Science2083-84922014-06-0124235736910.2478/amcs-2014-0027amcs-2014-0027Design of a multivariable neural controller for control of a nonlinear MIMO plantBańka Stanisław0Dworak Paweł1Jaroszewski Krzysztof2Faculty of Electrical Engineering West Pomeranian University of Technology in Szczecin, 26 Kwietnia 10, 71-126 Szczecin, PolandFaculty of Electrical Engineering West Pomeranian University of Technology in Szczecin, 26 Kwietnia 10, 71-126 Szczecin, PolandFaculty of Electrical Engineering West Pomeranian University of Technology in Szczecin, 26 Kwietnia 10, 71-126 Szczecin, PolandThe paper presents the training problem of a set of neural nets to obtain a (gain-scheduling, adaptive) multivariable neural controller for control of a nonlinear MIMO dynamic process represented by a mathematical model of Low-Frequency (LF) motions of a drillship over the drilling point at the sea bottom. The designed neural controller contains a set of neural nets that determine values of its parameters chosen on the basis of two measured auxiliary signals. These are the ship’s current forward speed measured with respect to water and the systematically calculated difference between the course angle and the sea current (yaw angle). Four different methods for synthesis of multivariable modal controllers are used to obtain source data for training the neural controller with parameters reproduced by neural networks. Neural networks are designed on the basis of 3650 modal controllers obtained with the use of the pole placement technique after having linearized the model of LF motions made by the vessel at its nominal operating points in steady states that are dependent on the specified yaw angle and the sea current velocity. The final part of the paper includes simulation results of system operation with a neural controller along with conclusions and final remarks.https://doi.org/10.2478/amcs-2014-0027mimo multivariable control systemsnonlinear systemsneural control
spellingShingle Bańka Stanisław
Dworak Paweł
Jaroszewski Krzysztof
Design of a multivariable neural controller for control of a nonlinear MIMO plant
International Journal of Applied Mathematics and Computer Science
mimo multivariable control systems
nonlinear systems
neural control
title Design of a multivariable neural controller for control of a nonlinear MIMO plant
title_full Design of a multivariable neural controller for control of a nonlinear MIMO plant
title_fullStr Design of a multivariable neural controller for control of a nonlinear MIMO plant
title_full_unstemmed Design of a multivariable neural controller for control of a nonlinear MIMO plant
title_short Design of a multivariable neural controller for control of a nonlinear MIMO plant
title_sort design of a multivariable neural controller for control of a nonlinear mimo plant
topic mimo multivariable control systems
nonlinear systems
neural control
url https://doi.org/10.2478/amcs-2014-0027
work_keys_str_mv AT bankastanisław designofamultivariableneuralcontrollerforcontrolofanonlinearmimoplant
AT dworakpaweł designofamultivariableneuralcontrollerforcontrolofanonlinearmimoplant
AT jaroszewskikrzysztof designofamultivariableneuralcontrollerforcontrolofanonlinearmimoplant