Model predictive control of nonlinear systems with unmodeled dynamics based on feedforward and recurrent neural networks

Publication Type:
Journal Article
Citation:
IEEE Transactions on Industrial Informatics, 2012, 8 (4), pp. 746 - 756
Issue Date:
2012-11-01
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This paper presents new results on a neural network approach to nonlinear model predictive control. At first, a nonlinear system with unmodeled dynamics is decomposed by means of Jacobian linearization to an affine part and a higher-order unknown term. The unknown higher-order term resulted from the decomposition, together with the unmodeled dynamics of the original plant, are modeled by using a feedforward neural network via supervised learning. The optimization problem for nonlinear model predictive control is then formulated as a quadratic programming problem based on successive Jacobian linearization about varying operating points and iteratively solved by using a recurrent neural network called the simplified dual network. Simulation results are included to substantiate the effectiveness and illustrate the performance of the proposed approach. © 2012 IEEE.
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