A method for determination of the matrix coefficients of the A-parameters of a multipole that simulates the impact of the adjacent track circuit

Tarasov, E. M.; Zheleznov, D. V.; Isaicheva, A. G.; Kopeikin, S. V.

doi:10.3103/s1068371217030154

Cited by 6 publications

(1 citation statement)

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“…As a traditional and inherent problem of railway signals, adjacent line interference has always attracted the attention of domestic and foreign researchers. Lucca [3] et al studied the influence of inductive interference caused by the electrified double track on the track circuit, and proposed an algorithm for sensitivity analysis of the electromagnetic interference level generated; E. M. Tarasov [4] et al proposed a method to determine the parameter matrix coefficients of railway multiple lines and analyzed the adjacent line interference between asymmetrical track circuits; Manakov AD [5] et al proposed a method to determine the interference current of the double-track circuit; Cuiqin Zhao [6] et al established a multi-line parallel ballasted track coupling interference equivalent circuit model; Yuequan Li [7] et al studied the coupling interference at the transverse connecting line at the entrance of electrified railway; Jialiang Liu [8] and others realized the numerical calculation of interference current in the adjacent segment. Most of the above-mentioned research is based on general-speed railways, while high-speed railways have different configurations.…”

Section: Introductionmentioning

confidence: 99%

Simulation on adjacent line mutual interference of high-speed railway track circuit

2022

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As the density of the high-speed railway network continues to increase, the problem of electromagnetic interference on adjacent lines has become increasingly prominent. This paper focuses on the electromagnetic interference of adjacent lines caused by rail and line in the signal transmission process of the high-speed rail track circuit. Firstly, complete the establishment of the four-terminal network model of the ZPW-2000A track circuit system and the cab signal entry current crosstalk model, calculation of interference voltage under different parallel length of signal frequency. Then the interference factors and coupling mechanism of adjacent lines are analysed to realize calculation of interference amount. Finally, according to the sensitivity index of the cab signal, the maximum parallel length of adjacent sections is given respect, and the interference protection suggestions of adjacent lines are put forward. The research work of this paper provides a theoretical basis for suppressing the interference of adjacent lines and guarantees the safe and efficient operation of high-speed trains.

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Section: Introductionmentioning

confidence: 99%

Simulation on adjacent line mutual interference of high-speed railway track circuit

2022

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Optimization of the magnetic system of a VR machine for traction electric drives in agriculture

Zakharov¹,

Tulegenov²

2020

IOP Conf. Ser.: Earth Environ. Sci.

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The purpose of this article is to optimize a VR machine for traction electric drives in agriculture, as well as to identify its advantages and disadvantages, to compare an electric drive based on a test machine with an asynchronous electric drive of the same size. The optimal ratio of the elements of the magnetic system of the electromechanical converter based on the VR machine. It is shown that the overload capacity of an electric drive with a VR machine is about 25%. The specific electromagnetic moment of the studied machine is 30% higher than the corresponding indicator of an asynchronous machine of the same size in the nominal operating mode. The disadvantage of this machine is its low power factor, only 7%. This is due to the small ratio of conductivities along the longitudinal and transverse axes of the machine due to the large number of stator and rotor teeth. The problem is solved by introducing additional DC or AC windings on the stator. It is shown that a change in the air gap significantly affects the specific moment. Only by reducing by 2 times the air gap managed to increase the moment by 48%.

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Automation of the design and development stages of semiconductor devices

Imanova¹,

Fediakov²,

Tulegenov³

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The scientific article analyzes the thermal conditions of heat transfer in semiconductor devices, developed a calculation algorithm; a computational methodology for printed circuit boards was chosen, and the proposed methods were implemented by the example of printed circuit boards for calculating the thermal conditions of printed circuit boards that are used to implement power semiconductor technology of oil and gas facilities. It has been established that the automation of design of semiconductor elements and devices involves the initial stages of the thermal calculation in order to optimize the placement of elements and devices to improve the weight and size. It is shown that the analytical approach to the selection of elements and devices allows to reduce the preliminary labor costs for layout, as well as to optimize the placement of elements and devices according to the criterion of minimizing the weight and size indicators. Analysis of transient thermal processes on the printed circuit board can significantly improve the quality of the calculation and obtain more reliable results, bringing them closer to the most reliable.

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A method for determination of the matrix coefficients of the A-parameters of a multipole that simulates the impact of the adjacent track circuit

Cited by 6 publications

References 0 publications

Simulation on adjacent line mutual interference of high-speed railway track circuit

Simulation on adjacent line mutual interference of high-speed railway track circuit

Optimization of the magnetic system of a VR machine for traction electric drives in agriculture

Automation of the design and development stages of semiconductor devices

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