Advanced Co-phase Traction Power Supply Simulation Based on Multilevel Converter
Serious power quality and neutral sections disadvantage restrict the evolution of traditional traction power supply system. An advanced co-phase traction power supply system is proposed in this paper based on three-phase to single-phase converter as the key equipment in substation. This converter adopts multi-module diode clamped multi-level algorithm, connects between industrial grid and feeder line without using output transformer. It transfers active power from three-phase grid isolated to one-phase traction line, and provides the frequency, phase and amplitude controlled output voltage. Then, the feeder line between different substation can be connected directly, and constructs an ideal co-phase traction supply system in the same phase. The performance of the converter is validated by the discussion and simulation results in this paper.
KeywordsActive Power Power Supply System Unity Power Factor Neutral Section Traction Power Supply
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