Research on speed control of high-speed trains based on hybrid modeling

With the continuous improvement of train speed, the automatic driving of trains instead of driver driving has become the development direction of rail transit in order to realize traffic automation. The application of single modeling methods for speed control in the automatic operation of high-speed...

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Main Authors: Tao Hou, Li Tang, Hongxia Niu, Tingyang Zhao
Format: Article
Language:English
Published: Faculty of Transport, Warsaw University of Technology 2023-06-01
Series:Archives of Transport
Subjects:
Online Access:http://aot.publisherspanel.com/gicid/01.3001.0016.3132
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author Tao Hou
Li Tang
Hongxia Niu
Tingyang Zhao
author_facet Tao Hou
Li Tang
Hongxia Niu
Tingyang Zhao
author_sort Tao Hou
collection DOAJ
description With the continuous improvement of train speed, the automatic driving of trains instead of driver driving has become the development direction of rail transit in order to realize traffic automation. The application of single modeling methods for speed control in the automatic operation of high-speed trains lacks exploration of the com-bination of train operation data information and physical model, resulting in low system modeling accuracy, which impacts the effectiveness of speed control and the operation of high-speed trains. To further increase the dynamic modeling accuracy of high-speed train operation and the high-speed train's speed control effect, a high-speed train speed control method based on hybrid modeling of mechanism and data drive is put forward. Firstly, a model of the high-speed train's mechanism was created by analyzing the train's dynamics. Secondly, the improved kernel-principal component regression algorithm was used to create a data-driven model using the actual opera-tion data of the CRH3 (China Railway High-speed 3) high-speed train from Huashan North Railway Station to Xi'an North Railway Station of "Zhengxi High-speed Railway," completing the mechanism model compensation and the error correction of the speed of the actual operation process of the high-speed train, and realizing the hybrid modeling of mechanism and data-driven. Finally, the prediction Fuzzy PID control algorithm was devel-oped based on the natural line and train characteristics to complete the train speed control simulation under the hybrid model and the mechanism model, respectively. In addition, analysis and comparison analysis were conduct-ed. The results indicate that, compared to the high-speed train speed control based on the mechanism model, the high-speed train speed control based on hybrid modeling is more accurate, with an average speed control error reduced by 69.42%. This can effectively reduce the speed control error, improve the speed control effect and oper-ation efficiency, and demonstrate the efficacy of the hybrid modeling and algorithm. The research results can provide a new ideal of multi-model fusion modeling for the dynamic modeling of high-speed train operation, further improve control objectives such as safety, comfort, and efficiency of high-speed train operation, and pro-vide a reference for automatic driving and intelligent driving of high-speed trains.
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spelling doaj.art-d05a89a9f138498f91797d03b47ff84c2023-06-23T15:01:23ZengFaculty of Transport, Warsaw University of TechnologyArchives of Transport0866-95462300-88302023-06-01662778710.5604/01.3001.0016.313201.3001.0016.3132Research on speed control of high-speed trains based on hybrid modelingTao Hou0Li Tang1Hongxia Niu2Tingyang Zhao3School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaSchool of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaSchool of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaSchool of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaWith the continuous improvement of train speed, the automatic driving of trains instead of driver driving has become the development direction of rail transit in order to realize traffic automation. The application of single modeling methods for speed control in the automatic operation of high-speed trains lacks exploration of the com-bination of train operation data information and physical model, resulting in low system modeling accuracy, which impacts the effectiveness of speed control and the operation of high-speed trains. To further increase the dynamic modeling accuracy of high-speed train operation and the high-speed train's speed control effect, a high-speed train speed control method based on hybrid modeling of mechanism and data drive is put forward. Firstly, a model of the high-speed train's mechanism was created by analyzing the train's dynamics. Secondly, the improved kernel-principal component regression algorithm was used to create a data-driven model using the actual opera-tion data of the CRH3 (China Railway High-speed 3) high-speed train from Huashan North Railway Station to Xi'an North Railway Station of "Zhengxi High-speed Railway," completing the mechanism model compensation and the error correction of the speed of the actual operation process of the high-speed train, and realizing the hybrid modeling of mechanism and data-driven. Finally, the prediction Fuzzy PID control algorithm was devel-oped based on the natural line and train characteristics to complete the train speed control simulation under the hybrid model and the mechanism model, respectively. In addition, analysis and comparison analysis were conduct-ed. The results indicate that, compared to the high-speed train speed control based on the mechanism model, the high-speed train speed control based on hybrid modeling is more accurate, with an average speed control error reduced by 69.42%. This can effectively reduce the speed control error, improve the speed control effect and oper-ation efficiency, and demonstrate the efficacy of the hybrid modeling and algorithm. The research results can provide a new ideal of multi-model fusion modeling for the dynamic modeling of high-speed train operation, further improve control objectives such as safety, comfort, and efficiency of high-speed train operation, and pro-vide a reference for automatic driving and intelligent driving of high-speed trains.http://aot.publisherspanel.com/gicid/01.3001.0016.3132high-speed trainhybrid modelingspeed controlerror compensation
spellingShingle Tao Hou
Li Tang
Hongxia Niu
Tingyang Zhao
Research on speed control of high-speed trains based on hybrid modeling
Archives of Transport
high-speed train
hybrid modeling
speed control
error compensation
title Research on speed control of high-speed trains based on hybrid modeling
title_full Research on speed control of high-speed trains based on hybrid modeling
title_fullStr Research on speed control of high-speed trains based on hybrid modeling
title_full_unstemmed Research on speed control of high-speed trains based on hybrid modeling
title_short Research on speed control of high-speed trains based on hybrid modeling
title_sort research on speed control of high speed trains based on hybrid modeling
topic high-speed train
hybrid modeling
speed control
error compensation
url http://aot.publisherspanel.com/gicid/01.3001.0016.3132
work_keys_str_mv AT taohou researchonspeedcontrolofhighspeedtrainsbasedonhybridmodeling
AT litang researchonspeedcontrolofhighspeedtrainsbasedonhybridmodeling
AT hongxianiu researchonspeedcontrolofhighspeedtrainsbasedonhybridmodeling
AT tingyangzhao researchonspeedcontrolofhighspeedtrainsbasedonhybridmodeling