Design of Flexible Traction Substation Based on Vv Traction Transformer

The flexible traction power supply system can completely eliminate the neutral section of the existing railway power supply system and alleviate the power quality problem. This paper studies the Vv traction transformer commonly used in the existing substation, and analyzes the working conditions of the Vv transformer with different loads. According to the working conditions of different loads, the structure and basic control scheme of flexible traction substation based on three-phase single-phase converter are designed. Finally, a simulation model is built to verify the feasibility of the structure and control strategy.