Methodology for selecting installation sites for automatic power redundancy systems of DC traction substations

The paper presents a method for selecting the installation locations of power reservation systems of traction substations to reduce electricity losses in the system of traction power supply of DC railways. The analysis of the main criteria affecting the efficiency and reliability of the DC traction power supply system is carried out. The algorithm for selecting the installation locations of power reservation systems has been developed, which allows selecting traction substations that provide the greatest energy effect during the installation of systems

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Increase of energy efficiency of electric power distribution networks by adjustment of reactive energy consumption in a traction network

MATEC Web of Conferences ◽

10.1051/matecconf/201823901049 ◽

2018 ◽

Vol 239 ◽

pp. 01049 ◽

Cited By ~ 2

Author(s):

Natalia Shurova ◽

Valerii Li

Keyword(s):

Energy Efficiency ◽

Power Supply ◽

Power Supply System ◽

Supply System ◽

Traction Power Supply System ◽

Traction Network ◽

Traction Substations ◽

Compensating Devices ◽

Traction Power Supply ◽

Traction Power

In the past few years, there has been a trend towards an increase in the volume of transportation by railway. At the same time, the load on the railway infrastructure increases, in particular, on the traction power supply system. It is necessary to solve the problem of increasing the energy efficiency of the external electric power supply system in the conditions of growing freight turnover and taking into account the uncertainty of the initial data. The paper considers one of the methods of strengthening the traction power supply system. Based on the results of the study, an algorithm was developed for selecting the installation sites and power of compensating devices in a traction network in the conditions of increasing freight turnover and under the condition of increasing the energy efficiency of the external power supply system of traction substations due to unloading of supply lines by reactive power and leveling the load in phases. This methodology includes predicting power consumption, determining the installation sites and power of compensating devices in the traction network under condition of uncertainty of the initial data, and then assessing the energy efficiency of the decision made. A calculation was carried out for the proposed algorithm for a section of the Far Eastern Railway which includes nine traction substations.

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Increase of energy efficiency of traction power supply system by application of voltage regulating devices

Transport of the Urals ◽

10.20291/1815-9400-2021-1-78-85 ◽

2021 ◽

pp. 78-85

Author(s):

Irina Anatolyevna Baeva ◽

Keyword(s):

Energy Efficiency ◽

Power Supply ◽

Power Supply System ◽

Current Collector ◽

Supply System ◽

Electric Locomotive ◽

Traction Power Supply System ◽

Traction Substations ◽

Traction Power Supply ◽

Traction Power

Increase of energy efficiency of a traction power supply system in condition of growth of goods turnover becomes a very actual task. The paper considers energy efficiency of both the existing traction power supply system without current regulating devices and the traction power supply system with the use of such devices. The author has determined the influence of increase of speed from 50 to 100 km/h on power consumption on traction including on power consumption according counters of electric locomotives and losses of power in the catenary. Also as a variant of strengthening the paper considers a buffer traction power supply system consisting of main regulated traction substations and a not regulated single-unit traction substation in the middle of inter-substation zone. This system is used in situation when regulation of voltage on main traction substations doesn’t provide the increase of traffic and carrier capacity of sections (directions). Modeling of operation of the traction power supply system has been carried out on a section of the Sverdlovsk Railway. All the calculations have been executed for the batch of freight trains with the mass of 7100 tons. In calculations the author has applied a new clarifying method that includes the use of corrective current coefficients and the assessment of voltage level on an electric locomotive current collector. The energy efficiency of the traction power supply system has been assessed by such indicators as a level of voltage on the electric locomotive current collector, power losses in catenary and transformers of traction substations.

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