Volume 5, Issue 1 (6-2018)                   IJRARE 2018, 5(1): 39-47 | Back to browse issues page

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Jafari Kaleybar H, Madadi Kojabadi H, Fazel S S, Foiadelli F, Brenna M. A Direct Power Feeding System for AC Railway Networks Using Modular Multilevel Converter. IJRARE 2018; 5 (1) :39-47
URL: http://ijrare.iust.ac.ir/article-1-183-en.html
2Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran
Abstract:   (2050 Views)
Traditional railway power supply systems impose substantial power quality problems (PQ) on the utility network, such as unbalance, harmonics and a large amount of reactive power. This paper proposes a topology based on three-phase to single-phase modular multilevel converters (MMC) to obviate these problems. The MMC based traction substations (TSS) are connected directly to the utility grid through the three-phase side of MMC. The proposed system symmetrically transfers active power from three-phase grid to the single-phase overhead catenary system (OCS) which compensate negative sequence current (NSC), reactive power and harmonics simultaneously. Eliminating of bulky traction transformers (TT), integrating of OCS, removing the neutral sections and increasing the train speed are the advantages of presenting system. The Precise simulations have been provided simulation have been provided to verify the performance of the proposed method.
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Type of Study: Research | Subject: Railway track and structures

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