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Synchronous tracking and controlling method for motor train unit based on distributed model

A technology of synchronous tracking and control methods, applied in adaptive control, general control systems, control/regulation systems, etc., can solve problems such as ignoring system dynamic performance, complex multi-variable, nonlinear dynamic systems, difficult online adjustment, etc.

Active Publication Date: 2013-08-14
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

However, the operation process of high-speed EMUs is a complex multi-variable, nonlinear dynamic system, and it is difficult for the PID algorithm to obtain ideal results.
Based on fuzzy control, expert system and robust adaptive control and other intelligent control algorithms for the train operation process, it has achieved better control effects than PID, but the fuzzy control method and the expert system control method are mainly to simulate the actual experience of experts. When the environment changes or is subject to random disturbances, it is difficult to adjust online; the robust adaptive controller is designed from the perspective of global stability and ignores the system dynamic performance
In addition, the above control method is mainly applied to ordinary speed trains such as urban rail transit, and less involved in the operation control method of EMUs

Method used

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  • Synchronous tracking and controlling method for motor train unit based on distributed model
  • Synchronous tracking and controlling method for motor train unit based on distributed model
  • Synchronous tracking and controlling method for motor train unit based on distributed model

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Embodiment Construction

[0094] The implementation of the present invention selects fourteen-action two-trailers (the first and sixteenth sections are trailers, and the rest are EMUs) CHR380AL EMU as the research object. The distribution diagram is as follows image 3 Shown. Collect this type of EMU and run in Xuzhou East The actual data of Jinan section, combined with high-speed EMU traction / braking characteristic curve, carried out distributed modeling and operation control simulation verification. The subspace model identification method is used to identify 1600 sets of input and output data samples of each power unit, and a distributed state space prediction model for high-speed EMUs is obtained. The state matrix and initial state of each power unit are as follows:

[0095] The model of unit 1:

[0096] A 1 =[0.99886], B 1 =[4.2142e-005 -4.1864e-005]

[0097] C 1 =[6730.3], D 1 =[0 0], K 1 =[0.00015309], x 1 (0)=[9.0846e-010]

[0098] Model of Unit 2:

[0099] A 2 =[0.99862], B 2 =[-4.5886e-005 2.1897e-0...

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Abstract

The invention discloses synchronous tracking and controlling method for a motor train unit based on a distributed model, which aims at the structural characteristic that the motive power distributed motor train unit is composed of a plurality of mutually coupled traction / brake control units. The method is based on motor train unit running process data and a traction / brake characteristic curve, utilizes modeling approach of data driving to build a motor train unit running process distributed model, and adopts a subspace method to identify, so as to obtain a model parameter. The invention provides the synchronous tracking and controlling method for the motor train unit based on the distributed model, so as to obtain an accurate control quality, and allow the running speed of each unit of the high-speed motor train unit to track the target curve accurately, achieve high-precision synchronous tracking control for each unit during high-speed motor train unit running process, and guarantee the motor train unit to run on time, safely, and efficiently. The method is simple and practical, and is suitable for high-speed motor train unit running process modeling and synchronous tracking control.

Description

Technical field [0001] The invention relates to a distributed modeling and high-precision synchronous tracking control method for each unit in an EMU operation process, and belongs to the field of EMU operation process modeling and speed synchronization tracking control. Background technique [0002] Compared with ordinary low- and medium-speed internal combustion trains and other means of transportation, EMUs have obvious advantages such as high operating speed, fuel saving, safety and reliability, and improved passenger comfort, which to some extent alleviate the current situation of my country's shortage of transportation resources. The train operation control system is the guarantee for the safe operation of the EMU, and it is of great significance to study the dynamic characteristics of the power units of the EMU and the corresponding control methods. The power distributed EMU is widely used in China. Compared with the centralized EMU, the power distributed EMU has the advan...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 杨辉张芳张坤鹏付雅婷李中奇刘杰民
Owner EAST CHINA JIAOTONG UNIVERSITY
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