DocumentCode :
490546
Title :
Synthesis and Application of Adaptive Predictive Control Algorithms for a Transportation System
Author :
Unbehauen, H. ; Krãmer, K.
Author_Institution :
Dept. of Electrical Engineering, Ruhr-University, 4630 Bochum 1, Germany
fYear :
1993
fDate :
2-4 June 1993
Firstpage :
2457
Lastpage :
2462
Abstract :
More than ten years ago the early approaches of predictive control methods, for example, the non-parametric model based DMC-algorithm [1] had been proposed in the literature. Following the main idea of predictive control, several control algorithms have been developed since then. Examples are the EHAC- [2], EPSAC- [3], OCS- [4], GPC- [5], MURHAC- [6] and MUSMAR-algorithms [7], which by using a previewed reference trajectory, enabled faster control than conventional controllers. The combination of all these algorithms with adaptive parameter estimation techniques leads to the main advantage, a capability to deal with processes with variable or unknown dead-time. Within the pool of predictive control algorithms, the GPC-algorithm, which may be seen as a combination of certain other predictive algorithms, has gained a great deal of attention in recent years [8-12]. As the GPC-algorithm seems to be favoured in use, there are certain disadvantages too. One disadvantage of the GPC-algorithm is its extreme sensitivity to additional noise signals. This disadvantage in working with the real-time application of a shaker conveyor for transportation of plastic beads is shown and discussed, and two modifications of the basic algorithm are proposed in this contribution. Both the new algorithms, the MGPC-(Modified GPC) and the DGPC-(Direct GPC) algorithm proposed here, show good performance in reducing the computational burden of the GPC-algorithm and achieving a better disturbance rejection property.
Keywords :
Adaptive control; Control system synthesis; Equations; Prediction algorithms; Predictive control; Programmable control; Sampling methods; Signal processing; Signal sampling; Transportation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 1993
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0860-3
Type :
conf
Filename :
4793331
Link To Document :
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