Balancing the Active Power of a Railway Traction Power Substation with an sp-RPC

Article Computer Science, Information Systems

Experimental Validation of a Bidirectional Multilevel dc-dc Power Converter for Electric Vehicle Battery Charging Operating under Normal and Fault Conditions

Vitor Monteiro et al.

Summary: This paper presents a bidirectional multilevel dc-dc power converter for electric vehicle battery charging. The power converter ensures continuous charging operation for EV batteries, regardless of the occurrence or absence of open-circuit failures in the bipolar dc grid. The proposed control algorithms and topology were validated through simulation and experimental results, analyzing different states of power semiconductors and considering various conditions of operation.

ELECTRONICS (2023)

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Article Transportation Science & Technology

Traction power substation balance and losses estimation in AC railways using a power transfer device through Monte Carlo analysis

Vitor A. Morais et al.

Summary: This paper presents a Monte Carlo analysis on the application of a power transfer device installed in the neutral zone and exchanging active power between two sections, analyzing the active power balance and system power losses. Results show the importance of considering train density and relative branch length when choosing the best place to install a power transfer device.

RAILWAY ENGINEERING SCIENCE (2022)

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Article Energy & Fuels

A Comprehensive Review on Modular Multilevel Converters, Submodule Topologies, and Modulation Techniques

Luis A. M. Barros et al.

Summary: This paper presents a critical and comparative analysis of the state-of-the-art aspects of the modular multilevel converter (MLC) concept. Different power electronics converter topologies and modulation techniques are discussed and evaluated using computational simulations. The results provide insights into the symmetry of waveforms, harmonic content, and power distribution in the MLC.

ENERGIES (2022)

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Article Chemistry, Multidisciplinary

Application of MMC-RPC in High-Speed Railway Traction Power Supply System Based on Energy Storage

Teng Li et al.

Summary: This paper proposes a Modular Multilevel Converter type Railway Power Conditioner with distributed super-capacitor energy storage scheme, which effectively improves power quality and utilizes railway regenerative braking energy through the Virtual Synchronous Generator control strategy and circulating current suppression strategy.

APPLIED SCIENCES-BASEL (2022)

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Article Energy & Fuels

Experimental Validation of a Reduced-Scale Rail Power Conditioner Based on Modular Multilevel Converter for AC Railway Power Grids

Mohamed Tanta et al.

Summary: The focus of the research is on the implementation, testing, and validation of a reduced-scale laboratory prototype of a proposed RPC based on MMC, with two experimental case studies confirming its effectiveness in improving the power quality of electrified railway power grids.

ENERGIES (2021)

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Proceedings Paper Energy & Fuels