Finite-Element Model Based Distribution Calculations of Current and Temperature within a DC Overhead Catenary
Abstract
There is proposed finite-element model of current/temperature distribution in a DC overhead catenary and are described basic principles of its generation. The author analyzes existing calculation procedures of the current distribution/catenary wire heating and highlightes their limitations. Based on the calculation results there are discussed typical current modes and thermal conditions of the key design components of DC catenary design versions enjoying wide application on railway transport (such as contact wire, catenary messenger, line feeder, Z-type anchor, electrical connectors and droppers). Two cases are analyzed, inclusive of traction current transit along the constant tension section and current pick-off by current collector passing along this section. On the basis of analysis there are indicated structural weakness areas of the catenary and is proposed method for their neutralization.
About the Author
A. V. Paranin
Ural State University of Railway Transport (UrGUPS)
Russian Federation
Russian Federation
References
1. Voronin A. V. Tokoraspredelenie mezhdu prodol’nymi provodami kontaktnoy seti i teplovoy raschet ee elementov. Kand. tekh. nauk. diss. [Current distribution between the longitudinal wires of catenary system and thermal calculation of its elements. Cand. tech. sci. diss.]. Moscow, All- Union Cent. Res. Inst. of Railway Transport Publ., 1946. 143 p.
2. Kostyuchenko K. L. Novye uzly mekhanicheskikh i elektricheskikh soedineniy provodov kontaktnoy seti. Kand. tekh. nauk. diss. [New components of mechanical and electrical connections of the catenary system wires. Cand. tech. sci. diss.]. Moscow, 1994. 112 p.
3. Marskiy V. E. Opredelenie nagruzochnoy sposobnosti kontaktnykh podvesok postoyannogo toka i ikh elementov [Determining load capacity of DC overhead lines and their components]. Novoe v khozyaystve elektrosnabzheniya [New in the power supply sector]. Moscow, Intext Publ., 2003, pp. 123 – 127.
4. Kudryashov E. V. Sovershenstvovanie mekhanicheskikh raschetov kontaktnykh podvesok na osnove staticheskikh konechno elementnykh modeley. Kand. tekh. nauk. diss. [Improving the mechanical calculation of overhead lines based on static finite element models. Cand. tech. sci. diss.]. St. Petersburg, 2010. 162 p.
5. Collina A., Bruni S. Numerical simulation of pantographoverhead equipment interaction. Vehicle System Dynamics, 2002, vol. 38, no. 4, pp. 261 – 291.
6. Pombo J., Ambrósio J. Environmental and track perturbations on multiple pantograph interaction with catenaries in highspeed trains. Computers & Structures, 2013, vol. 124, pp 88 – 101.
7. Paranin A. V. Sovershenstvovanie aerodinamicheskikh i teplovykh raschetov provodov kontaktnoy seti na osnove metoda konechnykh elementov. Kand. tekh. nauk. diss. [Improving the aerodynamic and thermal calculations of catenary wires on the basis of the finite element method. Cand. tech. sci. diss.]. Ekaterinburg, 2011. 158 p.
8. Paranin A. V., Efimov A. V., Efimov D. A. Modelirovanie chistogo kontakta mezhdu kontaktnym provodom i tokos’emnoy plastinoy v statike metodom konechnykh elementov [Modeling clean contact between the contact wirew and collector strip with static finite element methods]. Izvestiya Transsiba, 2014, no. 1 (17), pp. 57 – 67.
9. Nituca C. Thermal analysis of electrical contacts from pantograph — catenary system power supply of electric vehicles. Power Systems Research, 2013, vol. 96, pp. 211 – 217.
10. Chen G. X., Yang H. J., Zhang W. H., Wang X., Zhang S. D., Zhou Z. R. Experimental study on arc ablation occurring in a contact strip rubbing against a contact wire with electrical current. Tribology International, 2013, vol. 61, pp. 88 – 94.
Review
For citations:
Paranin A.V. Finite-Element Model Based Distribution Calculations of Current and Temperature within a DC Overhead Catenary. RUSSIAN RAILWAY SCIENCE JOURNAL. 2015;(6):33-38. (In Russ.)
Views:
686
.jpg)
Email this article 