The method for increasing the efficiency of equipment’s maintenance in railway traction power supply systems

Oleksandr MATUSEVYCH; Valeriy KUZNETSOV; Viktor SYCHENKO

doi:10.5604/01.3001.0012.6506

Authors

Oleksandr MATUSEVYCH Dnepropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Dnipro, Ukraine Author
Valeriy KUZNETSOV Dnepropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Dnipro, Ukraine Author
Viktor SYCHENKO Dnepropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Dnipro, Ukraine Author

DOI:

https://doi.org/10.5604/01.3001.0012.6506

Keywords:

railway traction, power systems, efficiency, maintenance equipments, traction substation

Abstract

Purpose. To develop the method for increasing the efficiency of the equipment’s maintenance and repair system, ensuring necessary level of operational reliability of the equipment, safety and reliability of the electric equipment with minimal expenses on operation. Relevance. Aging of the power equipment in railway power supply systems sharply raised a need for assessment of its states and degree of risk for operation outside rated service life. In critical conditions of technological processes and operational modes of the railways it is necessary to increase the equipment’s operational reliability. The scheduled maintenance and repair system whose main technical and economic criterion is the minimum of equipment’s downtimes on the basis of a rigid regulation of repair cycles, in the conditions of market regulations in the field of repair in many cases does not provide the optimal decisions due to insufficient financing. The solution of this problem is possible by improvement of the maintenance and repair system. Under these conditions the main direction for supporting the operational reliability of power electric equipment on TS is a development of the modern methods based on individual supervision over real changes of technical condition of power equipment. Scientific novelty. In this article the authors proposed an integrated approach, on the basis of which can be developed the effective maintenance and repair system for traction power supply systems. Proposed approach allowed to react quickly to changes of service conditions on traction substations, to control the technical condition of power electric equipment under the conditions of uncertainty, to establish interrelation between quality of service and operational reliability of the equipment, to choose a service strategy on traction substations. Practical importance. The validity of the developed method was confirmed by the results of calculations and practically by choosing the optimal maintenance's option for transformer TDTN-25000/150-70 U1 (ТДТН-25000/150-70 У1) on traction power supply substation.

References

GOST 15.601-98., 1997. System of product development and launching into manufacture. Industrial products maintenance. Principal positions (1999-07-01).

DEVALTA, 2014. Analysis of work of the Department of electrification and power supply in 2013. Kyiv: LLC "Devalta". 2014, 251 pages.

ISO/IEC 31010:2009, Risk Management - Risk Assessment Techniques.

MATUSEVICH, O. O., 2015. Improving the methodology of maintenance and repair of traction substations. Dnipro: Dnipr. National Univ. of railway transp. Named after Acad. V. Lazaryan. 2015. 295p.

ISREB, M., 1998. Quality assurance parameters of power plants life assessment and management (No. CONF-980426--). Illinois Inst. of Tech., Chicago, IL (United States).

SITNIKOV, V. F., SKOPINTSEV, V. A, 2007. Probabilistic and statistical approach to an assessment of resources of the power equipment in operation. Electricity, 11.

IEC 60300-3-11:2009, 2009. Dependability management - Part 3-11: Application guide - Reliability centred maintenance, 94 p.

DOLIN, A. P., PERSHINA, N. F., SMEKALOV, V. V., 2000. Experience of carrying out complex inspections of power transformers. Power plants, 6, 46-52.

SYCHENKO, V.G., MATUSEVICH, А. A., KYRYCHENKO, A. O., 2014. Process Engineering of improvement of the diagnostic system on traction substations. Electrification of transport, 8, 118–128.

ANOKHIN, A. M., GLOTOV, V.A., PAVELYEV, V. V., CHERKASHIN, A. M., 1997. Methods for determination of the coefficients of the importance of criteria. Automatic equipment and telemechanics, 8, 3-35.

MATUSIEWICZ, O., SYCZENKO, W., BIAŁOŃ, A., 2016. Continuous improvement of technical servicing and repair system of railway substation on the basis of FMEA methodology. TTS Technika Transportu Szynowego, 23(1-2), 75-79.

SZELAG, A., 2017. Electrical power infrastructure for modern rolling stock with regard to the railway in Poland. Archives of Transport, 42(2), 75-83.

QUNZHAN, LI., 2015. New generation traction power supply system and its key technologies for electrified railways. Journal of Modern Transportation, 23(1), 1–11.

MATUSEVYCH, O., SYCHENKO, V., BIALON, A., 2016. Continuous Improvement of Technical Servicing and Repair System of Rail-way Substation on the Basis of FMEA Methodology. Technika Transportu Szynowego, 23(1-2), 75-79.

SYCHENKO, V., MIRONOV, D., 2017. Development of a mathematical model of the generalized diagnostic indicator on the basis of full factorial experiment, Archives of Transport, 43(3), 125-133.