SELECTION OF RATIONAL PARAMETERS OF THE NOMINAL MODE OF ELECTRIC LOCOMOTIVES

H. K. Hetman, S. L. Marikutsa

Abstract


Purpose.The railways of Ukraine have been operated the locomotives, which are both morally and physically obsolete. Therefore, to ensure the competitiveness of rail transport it is necessary to update the locomotive fleet, and first of all the fleet of electric locomotives, because electrified railways provide the greater part of passenger and freight traffic. In this connection it is of special importance to determine the optimum parameters of the nominal mode of electric rolling stock. The purpose of the work is to examine the features of solution of these problems with respect to electric locomotives. Methodology. Assuming that the limit values of traction force are determined by the conditions of wheel-rail grip, then the power of the nominal mode can be represented as the product of rated speed, estimated friction coefficient, train weight and the coefficients that represent the ratio of the estimated (starting) value of traction force to value of traction force the nominal mode and the ratio of the mass of the locomotive to the train weight. Since the mass of the train is not a constant value, there is always a surplus power of the locomotive fleet required for the mastering of a predetermined volume of transportations. Reduced overcapacity of the locomotive fleet can be achieved by introduction of the locomotives of different power, designed for driving trains of different weight that will result in increased completeness of the power use but also in difficulty in selecting of locomotives for trains in operation. The paper shows the method of calculating the optimum values of power, speed and traction force of the nominal mode. It presents the mathematical model of the relationship of traction rate, excessive capacity and power of the traction unit. Findings.It is proved that the power of the traction unit, the total fleet power requirement and the excess of power in absolute units are proportional to the speed of the nominal mode. To reduce the total power of the fleet when selecting the optimum power of the traction unit it is necessary to take into consideration the speed of the nominal mode, defined by the condition of minimization of power consumption for traction, i.e. the smallest value that enables the implementation of the given running speed and the powerredundancy level required for operation. Originality. It consists in the development of a unified algorithm for determining the optimal parameter values of the nominal mode of passenger, freight and freight-passenger electric locomotives. Practical value. The authors determined the minimization costs during production, acquisition and maintenance of electric locomotives, whose nominal mode parameters are designed according to the above procedure.


Keywords


electric locomotive; specific traction force; speed; traction multiplicity; excess power; energy consumption; the trac-tion unit; distribution law

References


Arpul, S. V. (2013). Traction force of passenger electric definition for traction providing solve. Electrification of Transport, 5, 8-12.

Arpul, S. V. (2014). The definition of speed and power density nominal mode of passenger electric locomotives. Electrification of Transport, 7, 107-113.

Bosov, A. A. (2007). Funktsii mnozhestva i ikh primeneniye. Dneprodzerzhinsk: Izdatelskiy dom «Andrey».

Venttsel, Y. S. (1969). Teoriya veroyatnostey. Moscow: Nauka.

Getman, G. K.,. Arpul, S. V., Kiyko, A. I., & Mikhaylenko, Y. V. (2012). Vybor ratsionalnykh parametrov nominalnogo rezhima passazhirskikh elektrovozov. Dnepropetrovsk: Makovetskiy.

Getman, G. K. (2008). Nauchnyye osnovy opredeleniya ratsionalnogo moshchnostnogo ryada tyagovykh sredstv zheleznodorozhnogo transporta. Dnipropetrovsk: Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan Press.

Getman, G. K. (2007). Measurement of traction module optimum power. Vestnik OAO «VElNII», 1(53), 155-176.

Zabarylo, D. O. (2014). Frequency determination of high-frequency link for percpective electric rolling stock. Science and Transport Progress, 5(53), 65-73. doi: 10.15802/stp2014/30448

All-Soviet Union Research Institute of Railway Transport. (1985). Pravila tyagovykh raschetov dlya poyezdnoy raboty. Moscow: Transport.

Sergienko, N. I. (2010). Resheniye problem podvizhnogo sostava zheleznykh dorog Ukrainy cherez vzaimodeystviye gosudarstvennogo i chastnogo sektorov ekonomiki. Locomotive-Inform, 6, 40-46.

Tikhonov, K. K. (1970). Teoreticheskiye osnovy vybora optimalnykh vesovykh norm gruzovykh poyezdov. Proc. of Moscow Institute of Transport Engineering, 331.

Ignacio, G. F., & Alberto, G. A. (2012). Can High-Speed Trains Run Faster and Reduce Energy Consumption? Procedia – Social and Behavioral Sciences, 48, 827-837. doi: 10.1016/j.sbspro.2012.06.1060

Kim, K., & Chien, S. I. (2011). Optimal Train Operation for Minimum Energy Consumption Considering Track Alignment, Speed Limit, and Schedule Adherence. Journal of Transportation Engineering, 137(9), 665-674. doi: 10.1061/(ASCE)TE.1943-5436.0000246

Steimel, A. (2008). Electric Traction – Motion Power and Energy Supply. Munich: Oldenbourg Industrieverlag GmbH.

Su, R., Gu, Q., & Wen, T. (2014). Optimization of High-Speed Train Control Strategy for Traction Energy Saving Using an Improved Genetic Algorithm. Journal of Applied Mathematics, 2014, 1-7. doi: 10.1155/2014/507308


GOST Style Citations


  1. Арпуль, С. В. Визначення сили тяги пасажирського електровоза при вирішенні задач тягового забезпечення / С. В. Арпуль // Електрифікація транспорту. – 2013. – № 5. – С. 8–12.
  2. Арпуль, С. В. Определение скорости движения и удельной мощности номинального режима пассажирских электровозов / С. В. Арпуль // Електрифікація транспорту. – 2014. – № 7. – С. 107–113.
  3. Босов, А. А. Функции множества и их применение / А. А. Босов. – Днепродзержинск : Изд. дом «Андрей», 2007. – 182 с.
  4. Вентцель, Е. С. Теория вероятностей / Е. С. Вентцель. – Москва : Наука, 1969. – 567 с.
  5. Выбор рациональных параметров номинального режима пассажирских электровозов : монография / Г. К. Гетьман, С. В. Арпуль, А. И. Кийко, Ю. В. Михайленко. – Днепропетровск : Маковецкий, 2012. – 188 с.
  6. Гетьман, Г. К. Научные основы определения рационального мощностного ряда тяговых средств железнодорожного транспорта : монография / Г. К. Гетьман. – Днепропетровск : Изд-во Днепропетр. нац. ун-та ж.-д. трансп. им. акад. В. Лазаряна, 2008. – 444 с.
  7. Гетьман, Г. К. Определение оптимальной мощности тягового модуля / Г. К. Гетьман // Вестн. ОАО «ВЭлНИИ». – 2007. – Т. 1 (53). – С. 155–176.
  8. Забарило, Д. О. Визначення частоти високочастотної ланки для перспективної схеми електрорухомого складу / Д. О. Забарило // Наука та прогрес транспорту. – 2014. – № 5 (53). – С. 65–73. doi: 10.15802/stp2014/30448.
  9. Правила тяговых расчетов для поездной работы. – Москва : Транспорт, 1985. – 287 с.
  10. Сергиенко, Н. И. Решение проблем подвижного состава железных дорог Украины через взаимодействие государственного и частного секторов экономики / Н. И. Сергиенко // Локомотив-информ. – 2010. – № 6. – С. 40–46.
  11. Тихонов, К. К. Теоретические основы выбора оптимальных весовых норм грузовых поездов / К. К. Тихонов // Тр. МИИТа. – Москва, 1970. – Вып. 331. – 200 с.
  12. Ignacio, G. F. Can High-Speed Trains Run Faster and Reduce Energy Consumption? / G. F. Ignacio, G. A. Alberto // Procedia – Social and Behavioral Sciences. – 2012. – Vol. 48. – P. 827–837. doi: 10.1016/j.sbspro.2012.06.1060.
  13. Kim, K. Optimal Train Operation for Minimum Energy Consumption Considering Track Alignment, Speed Limit, and Schedule Adherence / K. Kim, S. I. Chien // J. of Transportation Engineering. – 2011. – Vol. 137. – Iss. 9. – P. 665–674. doi: 10.1061/(ASCE)TE.1943-5436.0000246.
  14. Steimel, A. Electric Traction – Motion Power and Energy Supply / A. Steimel. – Munich : Oldenbourg Industrieverlag GmbH, 2008. – 335 p.
  15. Su, R. Optimization of High-Speed Train Control Strategy for Traction Energy Saving Using an Improved Genetic Algorithm / R. Su, Q. Gu, T. Wen // J. of Applied Mathematics. – 2014. – Vol. 2014. – P. 1–7. doi: 10.1155/2014/507308.


DOI: https://doi.org/10.15802/stp2017/92615

 

Cited-by:

1. SELECTION OF RATIONAL PARAMETERS OF THE NOMINAL MODE ELECTRIC TRAINS WITH ASYNCHRONOUS TRACTION DRIVE
H. K. Hetman, S. L. Marikutsa
Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport  Issue: 3(69)  First page: 56  Year: 2017  
doi: 10.15802/stp2017/104767



Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

 

ISSN 2307–3489 (Print)
ІSSN 2307–6666 (Online)