Decoupling Control Design for the Module Suspension Control System in Maglev TrainReport as inadecuate




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Mathematical Problems in Engineering - Volume 2015 2015, Article ID 865650, 13 pages -

Research ArticleCollege of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China

Received 26 August 2014; Revised 11 December 2014; Accepted 26 December 2014

Academic Editor: Dan Ye

Copyright © 2015 Guang He et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An engineering oriented decoupling control method for the module suspension system is proposed to solve the coupling issues of the two levitation units of the module in magnetic levitation maglev train. According to the format of the system transfer matrix, a modified adjoint transfer matrix based decoupler is designed. Then, a compensated controller is obtained in the light of a desired close loop system performance. Optimization between the performance index and robustness index is also carried out to determine the controller parameters. However, due to the high orders and complexity of the obtained resultant controller, model reduction method is adopted to get a simplified controller with PID structure. Considering the modeling errors of the module suspension system as the uncertainties, experiments have been performed to obtain the weighting function of the system uncertainties. By using this, the robust stability of the decoupled module suspension control system is checked. Finally, the effectiveness of the proposed decoupling design method is validated by simulations and physical experiments. The results illustrate that the presented decoupling design can result in a satisfactory decoupling and better dynamic performance, especially promoting the reliability of the suspension control system in practical engineering application.





Author: Guang He, Jie Li, and Peng Cui

Source: https://www.hindawi.com/



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