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Distributed subway train virtual formation operation control method

A technology of train operation control and operation control, which is applied in the direction of transportation center control system, adaptive control, railway car body parts, etc., can solve problems such as large gaps, reduce calculation amount, improve operation efficiency, and improve calculation efficiency Effect

Pending Publication Date: 2021-10-26
BEIJING JIAOTONG UNIV
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Problems solved by technology

However, there is a certain degree of conservatism in the calculation of the safety distance, resulting in a large gap between adjacent trains

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  • Distributed subway train virtual formation operation control method
  • Distributed subway train virtual formation operation control method
  • Distributed subway train virtual formation operation control method

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Embodiment Construction

[0125] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0126] Since the present invention adopts distributed control, that is, the leading train performs optimal control according to the information provided by the signal control center, and the following train performs optimal control on the train based on information such as speed, position, and acceleration transmitted by the previous train. Thus, consider a virtual formation containing two subway trains, a leader train and a follower train. The present invention takes the whole line of Beijing Changping subway line as an example, does not consider crossing lines, ignores possible disturbances, and implements virtual formation operation control under the MPC algorithm framework for the leading train and the following train of two subway trains. Such as figure 2 Shown is the speed limit curve and running tracking speed curve of the leading train, image 3 Sh...

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Abstract

The invention relates to a distributed subway train virtual formation operation control method. The method comprises the following steps: S1, taking a subway train tracking speed operation curve, train speed limiting information, a train frictional resistance coefficient and the like as control system input; S2, monitoring and obtaining real-time speed and position information of each train in each sampling control period; S3, designing a distributed subway train virtual formation operation control method according to the real-time speed and position information of each train, calculating the control output of each train based on a sequential quadratic programming algorithm, and controlling the trains; and S4, repeating the steps S2-S3 until the control process is finished. Aiming at the characteristic that the subway train virtual formation technology adopts multiple control units for traction and braking, the distributed control method of the subway train is designed, the train operation interval is effectively shortened, the train operation efficiency is improved, and the urban rail transit transportation service level and flexibility are improved to a certain extent.

Description

technical field [0001] The invention relates to the field of urban rail transit train control, in particular to a distributed-based virtual formation operation control method for subway trains. Background technique [0002] In recent years, my country's urban rail transit has made great achievements and has become the "main artery" of urban public transportation. In order to ensure the safety of urban rail transit trains and improve operational efficiency, the control method of urban rail transit trains is the core key technology to achieve this goal. Train formation technology provides a solution to efficiently improve the flexibility of transportation organization and operation service quality, and also provides a new technical basis for the design of multi-train formation operation control methods. [0003] At present, my country mostly adopts the train operation mode based on moving block technology. This method enables the control center to dynamically calculate the m...

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Application Information

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IPC IPC(8): G05B13/04B61L27/00
CPCG05B13/042B61L27/00Y02P90/02
Inventor 李树凯杨立兴张熠雯高自友王艳辉
Owner BEIJING JIAOTONG UNIV
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