Single-phase Cascaded H-bridge Multilevel Active Power Filters in AC Electric Railway Systems

Liran Wu; Mingli Wu

Single-phase Cascaded H-bridge Multilevel Active Power Filters in AC Electric Railway Systems

Liran Wu

Mingli Wu

Vol. 17, No. 3, pp. 788-797, May 2017

10.6113/JPE.2019.17.3.788

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Abstract

The power quality of AC electric railways has become an issue worthy of more and more concern. Many active compensators based on power converters have been proposed, but with complex transformers or coupled branches. This paper presents a single-phase cascaded H-bridge multilevel active power filter (APF), which can directly connect to the 27.5-kV power supplies to deal with power quality problems. According to field measured data, the load characteristics are analyzed, and the system configuration and control system are designed based on the load characteristic analysis. Finally, simulation and experimental results verify the effectiveness of the proposed APF system, considering some problems such as the supply voltage fluctuations and transient inrush currents in AC electric railway systems.

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Cite this article

[IEEE Style]

L. Wu and M. Wu, "Single-phase Cascaded H-bridge Multilevel Active Power Filters in AC Electric Railway Systems," Journal of Power Electronics, vol. 17, no. 3, pp. 788-797, 2017. DOI: 10.6113/JPE.2019.17.3.788.

[ACM Style]

Liran Wu and Mingli Wu. 2017. Single-phase Cascaded H-bridge Multilevel Active Power Filters in AC Electric Railway Systems. Journal of Power Electronics, 17, 3, (2017), 788-797. DOI: 10.6113/JPE.2019.17.3.788.