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Heavy-load train speed tracking control method and system

A heavy-duty train, speed tracking technology, applied in general control systems, control/regulation systems, operation center control systems, etc., can solve the problem of difficult to meet the real-time performance of trains, unmodeled train dynamics and external unknown disturbances. , computational complexity, etc.

Pending Publication Date: 2021-02-09
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

All in all, the current train operation control methods mainly include predictive control, fuzzy control, adaptive control, neural network control or a combination of multiple control theories, but these studies have not targeted the unmodeled dynamics of the train and external unknown disturbances. processing, and has a large dependence on the model, the calculation is more complicated, it is difficult to meet the real-time requirements in the actual operation of the train, and realize the precise tracking of the train to the target speed curve

Method used

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  • Heavy-load train speed tracking control method and system
  • Heavy-load train speed tracking control method and system
  • Heavy-load train speed tracking control method and system

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specific Embodiment

[0142] The implementation of the present invention is based on the train characteristic curve to obtain 3380 groups of real input and output data of heavy-duty train operation. The specific implementation is divided into comparing the tracking effect of the robust adaptive ADRC controller with the traditional PID controller in the case of disturbance.

[0143] Figure 4 It is the speed tracking comparison chart of ADRC and PID controllers. It can be seen from the figure that both controllers can achieve stable tracking without overshoot.

[0144] Figure 5 The tracking errors of the two controllers are shown. It is obvious that the speed error under the PID controller has been in a fluctuating state, and the variation range is [-0,6,0.6], while the error variation range under the ADRC controller is [ -0.02, 0.02], which shows that the tracking effect of the ADRC controller is significantly better than that of the PID controller, and the anti-disturbance ability of the ADRC c...

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Abstract

The invention discloses a heavy-load train speed tracking control method and system, and the method comprises the steps: building a multi-particle unit shift model of a train, enabling an error between the actual operation speed of the train and a target speed to be minimized by adopting an auto-disturbance rejection control method based on robust self-adaption, and therefore, the anti-interference capability of the heavy-load train is improved, and the high-precision tracking control of the train on the target speed is realized.

Description

technical field [0001] The invention relates to the field of automatic control of heavy-duty train operation, in particular to a speed tracking control method and system for heavy-duty trains. Background technique [0002] Due to the advantages of large capacity, fast speed, low energy consumption, low cost, and all-weather advantages, heavy-haul railways have made heavy-haul transportation a general trend in the development of railway freight transportation in the world. Huge interference, high operational intensity and difficulty of opening a bank and other issues. To overcome the above problems and improve the control level of the train, it is necessary to analyze the train itself, establish its precise mathematical model, and study the appropriate control algorithm to control the running process of the train. This is the current technology to improve heavy-duty trains. important direction of development. [0003] For the modeling of the operation process of heavy-duty ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042B61L25/021B61L15/0062G06F30/25G06F2111/10B61L27/60B61D3/00
Inventor 杨辉金爱丽付雅婷李中奇谭畅
Owner EAST CHINA JIAOTONG UNIVERSITY
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