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A Cognitive Control Method for Cost-Efficient CBTC Systems With Smart Grids

Published: 01 March 2017 Publication History

Abstract

Communication-based train control (CBTC) systems use wireless local area networks for information transmission between trains and wayside equipment. Since inevitable packet delay and drop are introduced in train–wayside communications, information uncertainties in trains' states will lead to unplanned traction/braking demands, as well as waste in electrical energy. Moreover, with the introduction of regenerative braking technology, power grids in CBTC systems are evolving to smart grids, and cost-aware power management should be employed to reduce the total financial cost of consumed electrical energy. In this paper, a cognitive control method for CBTC systems with smart grids is presented to enhance both train operation performance and cost efficiency. We formulate a cognitive control system model for CBTC systems. The information gap in cognitive control is calculated to analyze how the train–wayside communications affect the operation of trains. The Q-learning algorithm is used in the proposed cognitive control method, and a joint objective function composed of the information gap and the total financial cost is applied to generate optimal policy. The medium-access control layer retry-limit adaption and traction strategy selection are adopted as cognitive actions. Extensive simulation results show that the cost efficiency and train operation performance of CBTC systems are substantially improved using our proposed cognitive control method.

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  • (2019)A cognitive control approach for microgrid performance optimization in unstable wireless communicationNeurocomputing10.1016/j.neucom.2019.04.048355:C(168-182)Online publication date: 25-Aug-2019

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cover image IEEE Transactions on Intelligent Transportation Systems
IEEE Transactions on Intelligent Transportation Systems  Volume 18, Issue 3
March 2017
252 pages

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IEEE Press

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Published: 01 March 2017

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  • (2022)Enterprise target cost control algorithm based on hypercycle modelJournal of Computational Methods in Sciences and Engineering10.3233/JCM-21556722:1(11-24)Online publication date: 1-Jan-2022
  • (2019)A cognitive control approach for microgrid performance optimization in unstable wireless communicationNeurocomputing10.1016/j.neucom.2019.04.048355:C(168-182)Online publication date: 25-Aug-2019

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