Improving the structure of the automatic speed control system of an electric train
https://doi.org/10.46973/0201-727X_2025_1_190
Abstract
The article considers the structure of the automatic speed control system for electric trains. The proportional-integral control law with a mismatch prediction is used, which ensures the required quality of control in steady-state and transient motion modes. The quality criteria for speed control are determined. By means of simulation modeling in the Embarcadero C++ Builder software environment, a comparative analysis of the efficiency of the automatic control system is carried out with different structures of its control law: constant (proportional-integral with a mismatch prediction is used in all motion modes) and variable (the proportional law is used during acceleration or braking, and the proportional-integral law with a mismatch prediction is used in the speed stabilization mode). For this purpose, the problem of parametric synthesis of the system is solved using the Nelder-Mead method, as a result of which rational values of the coefficients of the control law are found for each of its structures under study. It is established that the adaptation of the system control law to a change in the driving mode due to the use of its variable structure ensures an increase in the quality of electric train speed control.
About the Authors
V. I. Legkaya
Russian University of Transport (RUT (MIIT))
Russian Federation
Russian Federation
Legkaya Valeria Igorevna, Chair «Electric Trains and Locomotives», Postgraduate Student
O. O. Pudovikov
Russian University of Transport (RUT (MIIT))
Russian Federation
Russian Federation
Pudovikov Oleg Evgenievich, Chair «Electric Trains and Locomotives», Doctor of Engineering Sciences, Associate Professor, Head of the Chair
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Review
For citations:
Legkaya V.I., Pudovikov O.O. Improving the structure of the automatic speed control system of an electric train. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(1):190-200. (In Russ.) https://doi.org/10.46973/0201-727X_2025_1_190
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