Weighted Multimodel Predictive Function Control for Automatic Train Operation System

Train operation is a complex nonlinear process; it is difficult to establish accurate mathematical model. In this paper, we design ATO speed controller based on the input and output data of the train operation. The method combines multimodeling with predictive functional control according to complic...

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Bibliographic Details
Published in:Journal of Applied Mathematics 2014-01, Vol.2014 (2014), p.658-665-473
Main Authors: Wen, Shuhuan, Yang, Jingwei, Rad, Ahmad B., Chen, Sheng-yong, Hao, Pengcheng
Format: Article
Language:English
Subjects:
Algorithms
Clusters
Control algorithms
Controllers
Design engineering
Least squares method
Mathematical analysis
Mathematical models
Mathematical programming
Monitoring systems
Nonlinear systems
Nonlinearity
Public transportation
Railroads
Science
Traffic control
Trains
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Summary:Train operation is a complex nonlinear process; it is difficult to establish accurate mathematical model. In this paper, we design ATO speed controller based on the input and output data of the train operation. The method combines multimodeling with predictive functional control according to complicated nonlinear characteristics of the train operation. Firstly, we cluster the data sample by using fuzzy-c means algorithm. Secondly, we identify parameter of cluster model by using recursive least square algorithm with forgetting factor and then establish the local set of models of the process of train operation. Then at each sample time, we can obtain the global predictive model about the system based on the weighted indicators by designing a kind of weighting algorithm with error compensation. Thus, the predictive functional controller is designed to control the speed of the train. Finally, the simulation results demonstrate the effectiveness of the proposed algorithm.
ISSN:1110-757X
1687-0042
DOI:10.1155/2014/520627