Scientific paper ID 2645 : 2025/1
MODERNIZATION OF A TRACTION POWER SUBSTATION WITH THE IMPLEMENTATION OF A STATION CONTROL SYSTEM – PART II

Todor Lalev

Rectifier stations (RS) are a fundamental component of the traction power supply system (TPS) in urban transport, ensuring the conversion of alternating current into direct current, which is essential for powering the contact network (CN) and electric transport vehicles such as trams and trolleybuses (ETV). In the context of air pollution from particulate matter and the green transition, electric urban transport plays a key role as an environmentally friendly and sustainable alternative to conventional transportation modes.

The first part of this report provided an analysis of the current situation, revealing that most operational RS are both morally and technically outdated, leading to increasing operational costs, challenging maintenance, and reduced efficiency. Calculations indicate that the average operational lifespan of RS in Bulgaria is 41.7 years, significantly exceeding the designed lifespan of 30 years. This highlights the urgent need for modernization to ensure the system meets contemporary reliability, efficiency, and sustainability ments.

This second part of the report presents a specific modernization proposal through the implementation of a control system in existing RS. The primary goal is to optimize operations, reduce maintenance costs, and enhance the functionality and safety of the electric transport infrastructure.


Токоизправителна станция Система за управление Модернизация.Traction power substation Station Control System.Todor Lalev

BIBLIOGRAPHY

[1] Siemens. Sitras MDC: DC Protective Unit and Controller for DC Traction Power Supply, Operating Instructions. Siemens Mobility, Available: https://siemens.com/rail-electrification. nalichno kam 12.12.24g.
( [1] Siemens. Sitras MDC: DC Protective Unit and Controller for DC Traction Power Supply, Operating Instructions. Siemens Mobility, Available: https://siemens.com/rail-electrification. налично към 12.12.24г. )

[2] Siemens. Automation and remote terminal units - SICAM A8000 nalichno kam 12.12.24g. https://www.siemens.com/global/en/products/...
( [2] Siemens. Automation and remote terminal units - SICAM A8000 налично към 12.12.24г. https://www.siemens.com/global/en/products/... )

 

 

 

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