Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits

Ametova, E., Kudrato, J.

ТАЙИ хабарномаси · 2026-yil

Annotatsiya

Phase sensitive track circuits are very critical in the railway automation system and rely on the quick protection of track transformers against overload and short circuit faults. The traditional electromechanical circuit breakers (AVM-1, AVM-2) have large mechanical inertia, which results in slower fault isolation. In this paper, an optimized protection device (AVM-MP) based on a microprocessor is presented that overcomes the drawbacks of traditional mechanical protection devices and the preliminary digital prototypes. The first microprocessor designs incorporated the Hall-effect sensor to suit the ACS712, but were found to have several disadvantages: 5V to 3.3V logic level incompatibility, increased noise and limited bandwidth of 80 kHz. In response, the proposed architecture has an advanced ACS724 sensor that is easily compatible with the 3.3V logic of the dual-core ESP-32 microcontroller. The optimized system, which includes a dynamic current-derivative (di/dt) fault detection algorithm, provides a bandwidth of 120 kHz and removes voltage-divider noise. Results from the experimental test and simulation using virtual show that the response time of the sensor is decreased to less than 4μs, which makes it possible to detect and isolate any transient faults early (under 1.2ms). This quick response time also helps to avoid thermal damage to the transformer windings, significantly extending the operational lifespan and safety of the railway signaling system.

Maqola ma’lumotlari
MualliflarAmetova, E., Kudrato, J.
JurnalТАЙИ хабарномаси
NashriyotТошкент автомобиль йўлларини лойиҳалаш, қуриш ва эксплуатацияси институти
ISSN2181-2438, 3060-5164
Nashr sanasi2026-08-07
Jild3
Son2
Betlar126-130
TilIngliz
Ilmiy sohaTexnika
DOI10.56143/2181-2438-2026-2-126-130
Indeksga qo‘shilgan2026-08-26

DOI: 10.56143/2181-2438-2026-2-126-130 · Maqolaning asl sahifasi

Kalit so‘zlar

Phase-sensitive track circuits, microprocessor protection, Hall-effect sensor, ACS724, fault detection, time-current characteristic, predictive maintenance, IIoT, Railway automation

Ilmiy soha

Texnika

Iqtibos keltirish

APAAmetova, E., & Kudrato, J. (2026). Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits. ТАЙИ хабарномаси, 3(2), 126-130. https://doi.org/10.56143/2181-2438-2026-2-126-130
GOST (OAK)Ametova, E., Kudrato, J. Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits // ТАЙИ хабарномаси. – 2026. – T. 3, № 2. – P. 126-130. – DOI: 10.56143/2181-2438-2026-2-126-130.
MLAAmetova, E., and Kudrato, J. “Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits.” ТАЙИ хабарномаси, 3(2), 126-130, 2026. https://doi.org/10.56143/2181-2438-2026-2-126-130
ChicagoAmetova, E., and Kudrato, J. “Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits.” ТАЙИ хабарномаси, 3(2), 126-130 (2026). https://doi.org/10.56143/2181-2438-2026-2-126-130
HarvardAmetova, E., and Kudrato, J (2026) ‘Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits’, ТАЙИ хабарномаси, 3(2), 126-130. https://doi.org/10.56143/2181-2438-2026-2-126-130
BibTeX
@article{ametovae2026,
  title = {Optimization of the response time of microprocessor-based protection devices in phase-sensitive railway track circuits},
  author = {Ametova, E. and Kudrato, J.},
  journal = {ТАЙИ хабарномаси},
  year = {2026},
  volume = {3},
  number = {2},
  pages = {126-130},
  doi = {10.56143/2181-2438-2026-2-126-130},
  url = {https://doi.org/10.56143/2181-2438-2026-2-126-130}
}

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