Research on Speed Tracking Control Algorithm for Urban Rail Transit Trains Based on Sliding Mode and RBF Neural Network
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 5
Abstract
Objective Addressing the issues of low control accuracy and poor disturbance rejection in conventional ATO (automatic train operation) speed control algorithms in urban rail transit train operation control systems, a new speed control algorithm is proposed to improve control accuracy. Method Firstly, a single-mass point dynamic equation for train is established, and a delay compensation module is designed to address the phenomenon of delay in executing commands by the traction and braking systems. Secondly, in the controller design part, speed and position errors are collected to establish a sliding mode switching function, and a sliding mode controller is derived through differential equations. Finally, to suppress the inherent oscillation phenomenon of the sliding mode controller, the switching control output is optimized by training a RBF (radial basis function) neural network. Result & Conclusion Simulation experiments are conducted based on the parameters of the train from the Phase II renovation of Xuzhou Metro Line 3 in Matlab software. The simulation results demonstrate that the proposed algorithm ensures that the controller output speed can more efficiently and accurately track the recommended speed curve during train operation.
Authors and Affiliations
Huadian LIANG, Tianhua HONG, Qi GAO
Keywords
Related Articles
- EP ID EP735618
- DOI 10.16037/j.1007-869x.2024.05.015
- Views 48
- Downloads 1
Application Practice of Adjusting Rigid Catenary Sinusoidal Wave Stagger Value to Ameliorate Abnormal Pantograph-catenary Wear in Operating Line
Objective The early-designed rigid catenary system for urban rail transit lines in China adopts a sinusoidal wave arrangement method, leading to a prevalent abnormal wear of PC (pantograph-catenary) during operation. Und...
Health Status Evaluation of Urban Rail Transit Traction Transformers Based on Analytic Hierarchy Process and Entropy Weight Method
［Objective］ The purpose of health status evaluation of the traction power supply equipment is to provide references for the operation, repair and maintenance of this equipment in urban rail transit. ［Method］ A health...
Research on Security Enhancement for Abnormal Content Release in Unified Audio Video Information service Systems
Objective Traditional manual review processes can no longer meet the demands for real-time and accurate information assessment. To enhance the security of Shanghai rail transit system, it is necessary to implement an int...
Deformation Characteristics of Large Section Tunnel Surrounding Rock and Optimization of Tunnel Construction Scheme for Qingdao Metro Line
Objective The large section tunnel, due to flat shape and large span, usually adopts multiple steps and staged excavation. In the process of construction, the surrounding rock and the temporary support are repeatedly dis...
Research on the Power Supply Scheme for LTE Remote Equipment on Urban Rapid Transit Lines Based on DC Remote Power Supply Technology
Objective With regard to the equipment power supply demand for long-distance section of urban rapid transit lines, the traditional point-to-point and cross-redundant power supply method for remote equipment in urban rail...