Comprehensive Automation of Microprocessor Protection Relay Terminals Operated on AC Railways

Vostrikov Maksim Viktorovich,Daneev Aleksey Vasilyevich,Sizykh Viktor Nikolaevich,Menaker Konstantin Vladimirovich

doi:10.4236/jamp.2022.102037

Vostrikov Maksim Viktorovich, Daneev Aleksey Vasilyevich + Show 2 more

Open Access

https://doi.org/10.4236/jamp.2022.102037

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Abstract

The article discusses the possibility of a potential reduction in the number of operations of microprocessor relay protection of feeders of the contact network of AC railways TsZA-27.5-FKS (FTS) for unknown reasons. Real statistics on the number of microprocessor relay protection operations at the Buryatskaya traction substation are presented, simulation of the real train situation (in accordance with the regime maps of the throughput capacity of the sections of the Trans-Baikal railway) was carried out in the specialized software complex “KORTES”. Based on the results of the analysis of simulation modeling, the process of forming a unified template of settings using neural network technologies is considered, which characterizes only this specific regular train situation. To protect objects in the event of pre-emergency and emergency modes of operation of the traction power supply system, a variant of changing the standard operation algorithm of the TsZA-27.5-FKS (FTS) terminal by introducing additional blocks for calculating the predictive functions of current and voltage has been proposed.

Highlights

At present, the traction substations of the Zabaikalskaya Railway use microprocessor-based relay protections (MRP) for overhead feeders of the AZ (m), TsZA27.5-FKS (FTS), InTer-27.5 brands [1] [2] [3]
The neural network develops a base of unified setting templates corresponding to each specific individual current train situation in normal operating modes of the traction power supply system, which will be stored on the personal computer (PC) of the traction substation duty personnel
The automated systems proposed by the authors will perform a purely “tracking” function, as well as collect, process and store information, which will subsequently form the basis for studying the reasons for MRP shutdowns for unknown reasons in order to reduce their number

Summary

Introduction

The traction substations of the Zabaikalskaya Railway use microprocessor-based relay protections (MRP) for overhead feeders of the AZ (m), TsZA27.5-FKS (FTS), InTer-27.5 brands [1] [2] [3]. Analyzing the statistics of the operation of the MRP (for example, the Buryatskaya traction substation (TS)) for 2021, one can make sure that not the last place in the total number of outages is occupied by outages for unknown reasons (Figure 1). Studying this issue, associated with a possible decrease in the number of outages of the MRP for unknown reasons, the authors propose to consider the real process of organizing train traffic on a specific section of the Trans-Baikal Railway, using the KORTES software complex generally accepted for these purposes number

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