2024-03-29T05:32:18Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/1637302022-07-21T09:42:18Zcom_10234_7034com_10234_9col_10234_8619
00925njm 22002777a 4500
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Mesbahi, Nadhir
author
Monjo, Lluís
author
Sainz, Luis
author
2016-10
AC traction systems are 1 × 25 or 2 × 25 kV/50 Hz single-phase, nonlinear, time-varying loads that can cause power-quality problems, such as unbalanced or distorted voltages. To reduce unbalance, external balancing equipment is usually connected to these systems, forming the Steinmetz circuit. Parallel resonances can occur in these types of circuits, exciting the harmonic emissions (below 2 kHz) of railway-adjustable speed drives. This paper studies these resonances at pantograph terminals and provides analytical expressions to determine their harmonic frequencies. The expressions are validated from several traction systems in the literature and PSCAD simulations.
MESBAHI, Nadhir; MONJO, Lluis; SAINZ, Luis. Study of Resonances in 1x25kV AC Traction Systems With External Balancing Equipment. IEEE Transactions on Power Delivery Volume 31, Issue 5, Oct. 2016: pp. 2096 - 2104
http://hdl.handle.net/10234/163730
http://dx.doi.org/10.1109/TPWRD.2015.2504548
traction systems
Harmonic analysis
resonance
Steinmetz circuit
Study of Resonances in 1X25 kV AC Traction Systems With External Balancing Equipment