Title :
Neural generalized predictive control
Author :
Soloway, Donald ; Haley, Pamela J.
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
Abstract :
An efficient implementation of generalized predictive control using a multilayer feedforward neural network as the plant´s nonlinear model is presented. By using Newton-Raphson as the optimization algorithm, the number of iterations needed for convergence is significantly reduced from other techniques. The main cost of the Newton-Raphson algorithm is in the calculation of the Hessian, but even with this overhead the low iteration numbers make Newton-Raphson faster than other techniques and a viable algorithm for real-time control. This paper presents a detailed derivation of the neural generalized predictive control algorithm with Newton-Raphson as the minimization algorithm. Simulation results show convergence to a good solution within two iterations and timing data show that real-time control is possible. Comments about the algorithm´s implementation are also included
Keywords :
Newton-Raphson method; control system analysis; convergence of numerical methods; feedforward neural nets; neurocontrollers; optimisation; predictive control; Newton-Raphson algorithm; convergence; feedforward neural network; generalized predictive control; iterative method; neural predictive control; nonlinear model; optimization; real-time control; Convergence; Costs; Feedforward neural networks; Minimization methods; Multi-layer neural network; Neural networks; Prediction algorithms; Predictive control; Predictive models; Timing;
Conference_Titel :
Intelligent Control, 1996., Proceedings of the 1996 IEEE International Symposium on
Conference_Location :
Dearborn, MI
Print_ISBN :
0-7803-2978-3
DOI :
10.1109/ISIC.1996.556214