전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제65권12호
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  • Pages.2046-2052
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  • 2016
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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Ramp Metering under Exogenous Disturbance using Discrete-Time Sliding Mode Control

  • Jin, Xin (Dept. of Electrical and Computer Engineering, Ajou University) ;
  • Chwa, Dongkyoung (Dept. of Electrical and Computer Engineering, Ajou University) ;
  • Hong, Young-Dae (Dept. of Electrical and Computer Engineering, Ajou University)
  • 투고 : 2016.11.10
  • 심사 : 2016.11.17
  • 발행 : 2016.12.01
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초록

Ramp metering is one of the most efficient and widely used control methods for an intelligent transportation management system on a freeway. Its objective is to control and upgrade freeway traffic by regulating the number of vehicles entering the freeway entrance ramp, in such a way that not only the alleviation of the congestion but also the smoothing of the traffic flow around the desired density level can be achieved for the maintenance of the maximum mainline throughput. When the cycle of the signal detection is larger than that of the system process, the density tracking problem needs to be considered in the form of the discrete-time system. Therefore, a discrete-time sliding mode control method is proposed for the ramp metering problem in the presence of both input constraint in the on-ramp and exogenous disturbance in the off-ramp considering the random behavior of the driver. Simulations were performed using a validated second-order macroscopic traffic flow model in Matlab environment and the simulation results indicate that proposed control method can achieve better performance than previously well-known ALINEA strategy in the sense that mainstream flow throughput is maximized and congestion is alleviated even in the presence of input constraint and exogenous disturbance.

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참고문헌

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