ENHANCING THE OPERATIONAL EFFICIENCY OF DIRECT CURRENT DRIVE BASED ON USE OF SUPERCONDENSER POWER STORAGE UNITS
DOI:
https://doi.org/10.15802/stp2017/114624Keywords:
electric drive, storage unit, regeneration, super-condenser, characteristic of the electric motor, current, process, powerAbstract
Purpose.The scientific work is intended to analyse the expansion of the load range and the implementation of regeneration braking (RB) of the direct current drive by using the supercondenser power storage units. Methodology.To solve the problem, we use the methods of the electric drive theory, impulse electronics and the method of calculation of transient electromagnetic processes in linear electric circuits in the presence of super-condensers therein. Findings.The stiffness of the mechanical and electromechanical characteristics of a series motor is significantly increased, which makes it possible to use a DC drive under load, much smaller than 15…20% of the nominal one. Numerical calculations of the operation process of the supercondenser power storage unit were fulfilled with a sharp decrease in the load of a traction electric motor of a direct current electric locomotive. The possibility of RB of the direct current drive with the series motor is substantiated. The equations of the process of charging and discharging of super-condenser storage unit in RB mode are solved. The authors examined the effect of capacitance on the nature of maintaining the excitation current of an electric motor in the mode of small loads.Originality.The paper developed theoretical approaches for the transformation of soft (mechanical and electromechanical) characteristics into hard ones of DC series motors. For the first time a new, combined method of the series motor RB is proposed and substantiated. Further development obtained the methods for evaluating the storage unit parameters, taking into account the criteria for reliable parallel operation of super-condensers with an electric motor field. Practical value.The proposed and substantiated transformation of soft characteristics into stiff ones allows us to use general-purpose electric drives with series motors and at low loads, and in traction electric drives - to reduce the intensity of electric stockwheel slipping. Thedevelopedmethodofsolvingtransitionalequationsmakesitpossibletotakeintoaccounttherandomnatureofthevoltagechangeonthemotorinsuper-condenserdrivechargeanddischargemodes. The proposed combined method makes it possible to carry out RB at low speeds of the motor armature as well, and thus to increase energy efficiency of operation of electric drives of this type.
References
Astakhov, A., Karabanov, S., & Kukhmistrov, Y. (1997). Kondensatory s dvoynym elektricheskim sloyem. Radio, 4, 57-58.
https://elibrary.ru/author_items.asp?authorid=721829">Vasilyev, V. A. (2011). The Analysis of Application Possibility of the Capacitor Energy Storing Devices on the Electric Rolling Stock. Proceedings of Petersburg Transport University, 1 (26), 35-44.
Yevstafev, A. M. (2010). Primeneniye emkostnykh nakopiteley na elektricheskom podvizhnom sostave. In Proceedings of the 5th International symposium «ELTRANS-2009», October 20-23, 2009, SPb (pp. 537-545). St. Petersburg: PGUPS.
Kolb, A. A. (2006). Teoriia elektropryvodu. Dnipropetrovsk: National Mining University.
Kostin, M. O., Mukha, A. M., & Nikitenko, A. V. (2015). Vykorystannia superkondensatornykh nakopy-chuvachiv enerhii rekuperatyvnoho halmuvannia na lokomotyvakh postiinoho strumu VL11M6. In Proceedings of the VIII International Scientific Conference Electrification on Transport «TRANSELECTRO-2015», December 21-22, 2015, Dnipropetrovsk (pp. 102-103). Dnipropetrovsk: Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan.
Kostin, M. O., & Sheikina, O. H. (2007). Teoretychni osnovy elektrotekhniky (Vol. 2). Dnipropetrovsk: Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan.
Ryabtsyev, G. G., Yermakov, I. A., & Rubichyev, N. A. (2011). Raschet kondensatornykh nakopiteley energii dlya vagonov metropolitena. Russian Electrical Engineering, 8, 15-19.
Spiridonov, Y. A. (2010). Povysheniye effektivnosti ispolzovaniya energii v elektrotransportnykh kompleksakh s nakopitelnymi ustroystvami. (PhD thesis). Available from Novosibirsk State Technical University. Novosibirsk.
Popovych, M. H. (Ed). (1993). Teoriia elektropryvoda [textbook]. Kyiv: Vyshcha shkola.
Shtang, A. A. (2006). Povysheniye effektivnosti elektrotransportnykh sistem na osnove ispolzovaniya nakopiteley energii. (PhD thesis). Available from Novosibirsk State Technical University. Novosibirsk.
Shchurov, N. I., Shtang, A. A., Spiridonov, E. A., Prokushev, Y. A., & Vertokhvostov, A. P. (2007). Determination of the Parameters of an Energy Store for an Electric Transport System. Electrical Technology Russia, 6, 53-56.
Harpool, S., von Jouanee A., & Yokochi A. (2014). Supercapacitor Performance Characterization for Renewables Applications. In Proceeding of the IEEE Conference on Technologies for Sustainability SusTech, July 24-26, 2014, Portland, OR, USA. 160-164. doi:10.1109/SusTech.2014.7046237
Iannuzzi, D., & Tricoli P. (2012). Speed-Based State-of-Change Tracking Control for Metro Trains with Onboard Supercapacitors. IEEE Transaction on Power Electronics, 27 (4), 2128-2140. doi:10.1109/tpel.2011.2167633.
Guidi, G., Pavlovsky, M., Kawamura, A., Imakubo, T., & Sasaki, Y. (2010). Improvement of light load efficiency of dual active bridge DC-DC converter by using dual leakage transformer and variable frequency. In Proceeding of the IEEE Energy Conversion Congress and Exposition, September 12-16, 2010, Atlanta, GA, USA. 830-837. doi:10.1109/ecce.2010.5617909
Klohr, M., & Maroschik, A. (2012). Energiespeicher auf Straßen-und Stadtbahnfahrzeugen – das erste Serienprojekt. Elektrische Bahnen, 110 (8-9), 444-451.
Tango fur Genf mit. (2012). Elektrischen Bahnen, 110 (8-9), 508.
Brekken, T. K. A., Yokochi, A., von Jouanne, A., Yen, Z. Z., Hapke, H. M., & Halamay, D. A. (2011). Optimal Energy Storage Sizing and Control for Wind power Applications. IEEE Transactions on Sustainable Energy, 2 (1), 69-77. doi:10.1109/TSTE.2010.2066294
Pulling, N. (2009). Tram builders go to ground to find business. Tramways&Urban Transit, 72 (860), 300-303.
Rufer, A., Barrade, P., Hotellier, D. (2004). Power-Electronic Interface for a Supercapacitor-Based Energy-Storage Substations in DC-Transportation Networks. EPE Journal, 14 (4), 43-49. doi:10.1080/09398368.2004.11463573
Transit new. (2009). Railway Journal, 6, 10-12.
Variobahn mit Energiespeicher in Heidelberg in Betrieb. (2010). Elektrische Bahnen, 108 (1/2), 93-94.
Downloads
Published
How to Cite
Issue
Section
License
Copyright and Licensing
This journal provides open access to all of its content.
As such, copyright for articles published in this journal is retained by the authors, under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0). The CC BY license permits commercial and non-commercial reuse. Such access is associated with increased readership and increased citation of an author's work. For more information on this approach, see the Public Knowledge Project, the Directory of Open Access Journals, or the Budapest Open Access Initiative.
The CC BY 4.0 license allows users to copy, distribute and adapt the work in any way, provided that they properly point to the author. Therefore, the editorial board of the journal does not prevent from placing published materials in third-party repositories. In order to protect manuscripts from misappropriation by unscrupulous authors, reference should be made to the original version of the work.
