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Performance of generalized predictive control with on-line model order determination for a hydraulic robotic manipulator

Published online by Cambridge University Press:  09 March 2009

A. Kotzev,
D. B. Cherchas and
P. D. Lawrence
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Summary

The research results described present the performance of the Generalized Predictive Control (GPC) algorithm with a changing estimator and predictor model order for a specific application. The application is a hydraulically actuated heavy duty manipulator. Hydraulically actuated robotic manipulators, used in the large resource based industries, have a complex dynamic response in which, primarily due to the hydraulic actuator subsystems, the order of the dynamic model is not initially known and can change as the manipulator is operated. A nonlinear simulation model of the manipulator system is utilized in the work and the GPC controller is implemented with a CARIMA estimator together with an on-line, gradient based estimator model order determination technique. The results given show that with proper use of the order determination technique cost function and tuning of the GPC parameters, good performance and stability can be achieved.

Keywords

Hydraulic robotGPC algorithmSimulation modelCARIMA estimation

Information

Type
Articles
Information
Robotica , Volume 13 , Issue 1 , January 1995, pp. 55 - 64
Copyright
Copyright © Cambridge University Press 1995

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