UDC 656.259.12 UDC 621.313.333 UDC 629.4.054.2

EXPERIMENTAL ASSESSMENT OF THE PARAMETERS OF ELECTROMAGNETIC INTERFERENCE FROM AN ASYNCHRONOUS TRACTION DRIVE IN THE COMMUNICATION CHANNEL OF AUTOMATIC CAB SIGNALING IN THE METRO SYSTEM Experimental Assessment of the Parameters of Electromagnetic Interference from an Asynchronous Traction Drive in the Communication Channel of Automatic Cab Signaling in the Metro System

Published in Proceedings of Petersburg Transport University · Volume 23, Issue 3, 2026 · Pages 572–586 · Rubric: PROBLEMATIC OF TRANSPORT SYSTEM
DOI: https://doi.org/10.20295/1815-588X-2026-3-572-586
Received: 13.04.2026 Accepted: 22.06.2026 Published: 07.10.2026 Language of publication: RUS
Objective: to experimentally determine the characteristics of the electromagnetic interference from external fields generated during the operation of an asynchronous traction drive acting in the inductive coupling channel of automatic cab signaling with automatic speed regulation on subways. Based on the obtained results, demonstrate the necessity of considering the influence of such interference on the operation of receivers as part of trainborne equipment when investigating cases of failures and malfunctions in the operation of train motion control automation and remote control systems. Methods: include analysis of scientific and technical literature dedicated to determining the parameters of the electromagnetic environment characteristic of the operating conditions of onboard automation and remote control equipment and generated during the operation of the asynchronous traction drive of electric rolling stock. The experimental study was conducted in the laboratories of the departments “Electric Trains and Locomotives” and “Automation, Remote Control and Communications in Railway Transport” by setting current and supply frequency values in the stator windings using a frequency converter, changing the mutual arrangement of receiving coils relative to the asynchronous traction motor, and measuring the magnitude of the electromotive force (EMF) induced in the receiving coils using the ZETLAB ZET 017-U8 spectrum analyzer and the PINTEX DP-50 differential probe. Results processing was performed using known methods of mathematical statistics. Results: characteristic dependencies of the effective EMF value induced in the receiving coils of onboard safety equipment by the external electromagnetic field were constructed with changes in suspension height relative to the running rail head level, lateral displacements relative to the vertical axis of the running rail, and distance from the motor rotation axis. The spectral composition of the interference was determined. Practical importance: the obtained results refine the nature of the electromagnetic environment under operating conditions of automatic cab signaling with automatic speed regulation on subways, verify previously obtained results of computer modeling and developed mathematical models, and will be used in the future to improve service support for onboard equipment.
electromagnetic compatibility, external electromagnetic field, metro system, onboard safety equipment, inductive communication channel, asynchronous traction drive
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