Analysis of harmonic current of urban rail transit traction station based on operation mode

In order to ensure the highly safety, reliability and economy of the urban rail transit power supply system, the operation mode of urban rail transit traction station is diverse. Different operation modes of the power supply system have different effects on power quality. In this paper, the different operation modes of urban rail transit traction station were discussed, the harmonic current of the urban rail transit traction station based on the different operation modes was analyzed through theoretical calculations and simulation model, and the reason was studied which caused the non-characteristic harmonics of a real urban rail transit traction power supply system. The conclusion of the study provides a reference to design and operation management of the urban rail transit power supply system.