Development of neurocontrollers with evolutionary reinforcement learning

The growth in intelligent control is among other fuelled by the realization that nonlinear control theory is not yet able to provide practical solutions to present day control challenges. Overdesign is therefore often used as a means to avoid highly nonlinear regions of operation, despite the risk o...

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Main Authors: Conradie, A., Aldrich, Chris
Format: Journal Article
Published: Elsevier 2005
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/48420
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author Conradie, A.
Aldrich, Chris
author_facet Conradie, A.
Aldrich, Chris
author_sort Conradie, A.
building Curtin Institutional Repository
collection Online Access
description The growth in intelligent control is among other fuelled by the realization that nonlinear control theory is not yet able to provide practical solutions to present day control challenges. Overdesign is therefore often used as a means to avoid highly nonlinear regions of operation, despite the risk of significant economic penalties both in terms of capital and operating costs. The Symbiotic Adaptive Neuro-Evolution (SANE) algorithm combines the design and controller development functions into a single coherent step through the use of evolutionary reinforcement learning. SANE locates the optimum operating steady state and develops a neurocontroller based on maximising economic considerations. In this paper, the use of SANE to optimize and control a bioreactor at its economically optimal steady state is discussed. The developed neurocontroller was found to be robust in the presence of significant process uncertainty, as a result of the generalization afforded by the learning algorithm. More autonomous control is thus achieved in operating regions of greater complexity and uncertainty. Overdesign in the process industries may thus be limited by the use of the SANE algorithm.
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spelling curtin-20.500.11937-484202017-01-30T15:39:27Z Development of neurocontrollers with evolutionary reinforcement learning Conradie, A. Aldrich, Chris Reinforcement learning Neurocontrol The growth in intelligent control is among other fuelled by the realization that nonlinear control theory is not yet able to provide practical solutions to present day control challenges. Overdesign is therefore often used as a means to avoid highly nonlinear regions of operation, despite the risk of significant economic penalties both in terms of capital and operating costs. The Symbiotic Adaptive Neuro-Evolution (SANE) algorithm combines the design and controller development functions into a single coherent step through the use of evolutionary reinforcement learning. SANE locates the optimum operating steady state and develops a neurocontroller based on maximising economic considerations. In this paper, the use of SANE to optimize and control a bioreactor at its economically optimal steady state is discussed. The developed neurocontroller was found to be robust in the presence of significant process uncertainty, as a result of the generalization afforded by the learning algorithm. More autonomous control is thus achieved in operating regions of greater complexity and uncertainty. Overdesign in the process industries may thus be limited by the use of the SANE algorithm. 2005 Journal Article http://hdl.handle.net/20.500.11937/48420 Elsevier restricted
spellingShingle Reinforcement learning
Neurocontrol
Conradie, A.
Aldrich, Chris
Development of neurocontrollers with evolutionary reinforcement learning
title Development of neurocontrollers with evolutionary reinforcement learning
title_full Development of neurocontrollers with evolutionary reinforcement learning
title_fullStr Development of neurocontrollers with evolutionary reinforcement learning
title_full_unstemmed Development of neurocontrollers with evolutionary reinforcement learning
title_short Development of neurocontrollers with evolutionary reinforcement learning
title_sort development of neurocontrollers with evolutionary reinforcement learning
topic Reinforcement learning
Neurocontrol
url http://hdl.handle.net/20.500.11937/48420