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Adaptive backstepping fault-tolerant control method for train actuator failure fault

A fault-tolerant control and actuator technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problem of less application of fault-tolerant control

Active Publication Date: 2017-07-21
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The idea of ​​fault-tolerant control has a history of more than 40 years, but the application of fault-tolerant control on trains is relatively small

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  • Adaptive backstepping fault-tolerant control method for train actuator failure fault
  • Adaptive backstepping fault-tolerant control method for train actuator failure fault
  • Adaptive backstepping fault-tolerant control method for train actuator failure fault

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Embodiment Construction

[0053] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0054] Such as figure 1 As shown, the present invention discloses an adaptive backstepping fault-tolerant control method for failure of train actuators, the method comprising:

[0055] S1: Analyze the force of the train, and establish the dynamic equation of the longitudinal motion of the train under the failure of the train actuator.

[0056] Specifically, Newton's law is used to analyze the force situation of the longitudinal motion of the train, and the dynamic equation of the longitudinal motion of the train under the...

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Abstract

The invention discloses an adaptive backstepping fault-tolerant control method for a train actuator failure fault. The method comprises: S1, a stress analysis is carried out on a train and a longitudinal train motion dynamic equation at a train actuator failure fault is established; S2, an error variable is introduced to obtain a closed-loop system dynamic equation of the longitudinal train motion; S3, an unknown bounded function of a neural network is introduced to obtain a corrected closed-loop system dynamic equation; and S4, a train motion controller is designed based on the corrected system dynamic equation. Therefore, the influence on the train expected tracking system by the actuator failure fault can be compensated; the influence on the train system by the additional resistance can be reduced or eliminated; the good position tracking performance and speed tracking performances can be realized during the train operation process; and the security and reliability of the train system can be enhanced.

Description

technical field [0001] The invention relates to the technical field of train control. More specifically, it relates to an adaptive backstepping fault-tolerant control method for failure of train actuators. Background technique [0002] Modern systems are developing in the direction of large-scale and complex, but in modern systems, failures are inevitable. Once a failure occurs, it will cause huge personal and property safety, and threaten social stability and national progress. . The train system has the characteristics of high speed, high density, and large passenger flow, and is currently an important large-scale ground transportation system. Faults that occur during the operation of the train system will directly endanger the lives and property safety of passengers, so it is very important to ensure the safe operation of the train system. [0003] It is very urgent and necessary to improve the reliability and safety of trains, and fault-tolerant control provides a new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 董海荣林雪姚秀明宁滨李浥东
Owner BEIJING JIAOTONG UNIV
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