NDLI: Adaptive Optimal Control for Designing Automatic Train Regulation for Metro Line

Content Provider	IEEE Xplore Digital Library
Author	Jih-Wen Sheu Wei-Song Lin
Copyright Year	1993
Abstract	Automatic train regulation (ATR) plays an important role in maintaining the service quality of a metro in relation to schedule and headway adherence. However, maintaining service quality in an optimal way with less capacity utilization of infrastructure, particularly in an environment where disturbances occur frequently, is a challenge. Intrinsically, designing ATR is a real time optimal control problem with high nonlinearity, heavy constraints, and stochastic characteristics. Dual heuristic programming (DHP) was successfully employed to design ATR; however, the influence of traffic modeling error on the ATR performance was observed. In this paper, the adaptive optimal control (AOC) method is developed to improve the DHP design in regard to modeling errors as well as optimality, and an ATR designed using AOC method was developed and evaluated. The evaluation shows that the AOC method is able to find a near-optimal solution more rapidly and accurately than the DHP method. Moreover, the ATR designed using the AOC method improves both schedule and headway adherence with less capacity utilization and is more robust against disturbances as well as traffic modeling errors resulting from passenger flow fluctuations.
Sponsorship	IEEE Control Systems Society
Starting Page	1319
Ending Page	1327
Page Count	9
File Size	1751416
File Format	PDF
ISSN	10636536
Volume Number	20
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimal control Mathematical model Equations Adaptation models Schedules Regulators Adaptive systems Pontryagin's minimum principle (PMP) Adaptive critic design adaptive optimal control (AOC) automatic train regulation (ATR) dual heuristic programming (DHP) dynamic programming metro
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering

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