Back to Search
Start Over
Decentralized control of heavy-haul trains with input constraints and communication delays
- Source :
-
Control Engineering Practice . Apr2013, Vol. 21 Issue 4, p420-427. 8p. - Publication Year :
- 2013
-
Abstract
- Abstract: The heavy-haul trains consist of a large number of locomotives and wagons which usually cover a very long range of train tracks with different slopes and curvatures. As a consequence, the control design for the heavy-haul trains has posed a significant challenge due to the modeling complexity and the complicated traveling conditions, under which the problems of communication delays and input constraints naturally arise. In this paper, a novel decentralized control design is proposed for the heavy-haul trains by explicitly addressing the issues of input constraints and time-varying communication delays. Specifically, the complicated longitudinal dynamical model of the heavy-haul trains is first converted into a double integrator form by introducing a set of state and input transformations. Then, a decentralized cooperative control is proposed to regulate the speeds of individual train units (locomotives and wagons) to the desired profile with the objective of maintaining the minimum in-train force for safety consideration. It is rigorously proved that the closed-loop system is uniformly asymptotically cooperative stable under the least communication conditions among individual train units. Extensive simulations are conducted to validate the performance of the proposed new design. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09670661
- Volume :
- 21
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Control Engineering Practice
- Publication Type :
- Academic Journal
- Accession number :
- 85583240
- Full Text :
- https://doi.org/10.1016/j.conengprac.2012.12.010