This contribution deals with new configuration of the traction converter with medium-frequency transformer intended for ac trolley wire fed locomotives. The main objective of this paper is the control of primary voltage source active rectifiers connected in series and operated on the primary side of medium-frequency transformer. This paper present simulation and experimental results of designed low-voltage laboratory prototype of rated power of 12 kW. The presented configuration of the traction converter with medium-frequency transformer is one of the promismg solutions for the new generation of the locomotives and especially suburban units. This contribution gives the main emphasis on the control of the primary voltage source active rectifiers, which are directly connected to the ac trolley wire. This paper describes proposed model-based control of primary rectifiers, simulation results under both steady-state and transient conditions and experimental evidence of the designed low-voltage laboratory prototype of the locomotive converter with rated power of 12 kW. The employed PWM uses shifted carriers, thus, the converter behaviour is comparable to multilevel converter The operated control as well as PWM are simple for implementation and sufficiently robust.
AC/DC converter for traction applications
2008
4 Seiten, 13 Bilder, 5 Quellen
Aufsatz (Konferenz)
Englisch
A primary switched converter system for traction applications
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