AUTHORS: Cornelia A. Bulucea, Doru A. Nicola, Carmen A. Bulucea

Download as PDF

ABSTRACT: This study encompasses a comprehensive analysis of the three-phase transformer - three-phase rectifier assembly, and the establishment of the equivalent circuit of the AC / DC conversion group at the average DC components level. Since the efficiency standards can be expressed in terms of electrical efficiency, in an attempt to improve the transformer efficiency, in this study an enhancement of three-phase power transformer modelling with space phasors is presented. There are established the equations with space phasors of the three-phase transformer with symmetrical compact core. This equations system can be used to analyse the dynamic regimes of threephase transformers. In this study the authors comprehensively analysed aspects of three-phase power transformer with Graetz three-phase bridge assembly operating in AC/DC traction substations.

KEYWORDS: Power transformer, space phasor, three-phase bridge, traction substation

REFERENCES:

[1] C.A. Bulucea, D.A. Nicola, N.E. Mastorakis, C.A. Bulucea, “Three-phase power transformer modelling in AC/DC traction substations”, MATEC Web of Conferences, Vol.292, 01006, Proc. 23rd International Conference on Circuits, Systems, Communications and Computers (CSCC 2019) (2019).

[2] M. Jufer , Électromecanique, Traité d'Électricité, Vol.IX, Presses Polytechniques Romandes, CH1015, Lausanne (1992).

[3] R. Godina, E.M.G. Rodrigues, J.C.O. Matias, J.P.S. Catalao, “Effect of Loads and Other Key Factors on Oil-Transformer Ageing: Sustainability Benefits and Challenges”, Energies, 2015, 8, 12147-12186 (2015).

[4] D.A. Nicola, C.A. Bulucea, Electrotehnica, masini si echipamente electrice (Electrotechnics, Electrical Machines and Equipment), SITECH Publishing House, Craiova, Romania (2005).

[5] C.A. Bulucea,, D.A. Nicola,. Introducere în electrotehnica si echipamente electrice (Introduction to Electrotechnics and Electrical Equipment), SITECH Publishing House, Craiova, Romania (2004).

[6] G. Marion, An Introduction to Mathematical Modelling (2008), Given by Daniel Lawson and Glenn Marion, Available at : https://people.maths.bris.ac.uk/~madjl/course_t ext.pdf , Accessed on 15 March 2019.

[7] M. Fogiel M., The Electric Circuits. Problem Solver. A complete Solution Guide to Any Textbook, Research & Education Association (REA) Piscataway, New Jersey, SUA (1998).

[8] I. Coulon, M. Jufer, Introduction à l'électrotechnique (Introduction to Electrotechnics), 5th ed., Piesses Politechniques Romandes, Lausanne (1989).

[9] C.A. Bulucea, D.A. Nicola, N.E. Mastorakis, D.C. Cismaru, “Three-Phase Transformer Dynamic Regimes Modelling as Targeted Approach in Industrial Ecology” Recent Advances in Energy and Environment, Proc. 5th IASME/WSEAS Int.Conf. on Energy&Environment, University of Cambridge, Cambridge, pp.234-241 (2010).

[10] D.A. Nicola, Tractiune Electrica (Electric traction), Manual universitar pentru învăţământ cu frecvenţă redusă (University Book for education with brief student frequency), Editura Universitaria Craiova (Universitaria Publishing House) (2012).

[11] F. Perticaroli., Sistemi elettrici per i trasporti.Trazione elettrica (Electric systems for electrical railway transportation), Casa Editrice Ambrosiana, Milano (2001).

[12] I. Cantemir, M.,Oprişor,, Tracţiune electrică (Electric traction), EDP, Bucureşti (1971).

[13] F. Mao, Z.Mao , K. Yu, “The Modeling and Simulation of DC Traction Power Supply Network for Urban Rail Transit Based on Simulink”, First International Conference on Advanced Algorithms and Control Engineering, IOP Conf. Series: Journal of Physics: Conf. Series 1087 (2018) 042058 , Available at: https://iopscience.iop.org/article/10.1088/1742- 6596/1087/4/042058/pdf , Accessed on 10 November 2019.

[14] V V Ivanov, S V Myatezh, E Y Abramov, V V Khlybova, “Development of three-phase zone rectifier of traction substation”, IPDME 2018, IOP Conf. Series: Earth and Environmental Science 194 (2018) 052008, Available at: https://iopscience.iop.org/article/10.1088/1755- 1315/194/5/052008/pdf , Accessed on 14 November 2019.