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This paper deals with single-phase current-source active rectifier (CSAR) dedicated for retrofitting of older types of DC machine locomotives and also for the new generation of traction converters employing medium-frequency transformer. A summary of main tasks of the converter operation and proposed solutions will be presented in this paper. Required CSAR behavior have been: (i) the operation on both...
This research has been motivated by industrial demand for single-phase current-source active rectifier (CSAR) dedicated for reconstruction of older types of DC machine locomotives. This contribution presents a summary of main problems supported by description of developed control strategies. Theoretical principles and conclusions have been verified by simulations and large experimental study on designed...
This research has been motivated by industrial demand for single phase current-source active rectifier (CSAR) dedicated for reconstruction of older types of dc machine locomotives operating on both ac catenary voltages of 25kV/50Hz and 15kV/16 2/3Hz. This contribution presents new control strategy of single-phase traction CSAR using controller of the phase shift angle between the trolley wire voltage...
This research has been motivated by industrial demand for single phase current-source active rectifier dedicated for reconstruction of older types of dc machine locomotives. This paper presents converter design and simulations. The proposed converter control is based on the mathematical model and due to possible interaction with railway signalling and required low switching frequency employs synchronous...
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