In order to solve the problem of traversing power in the through co-phase power supply system,the paper puts forward a scheme for suppression of traversing power,which adopts an improved compensation device and traversing power suppression method for co-phase power supply system.On the basis of explaining the structure of the through co-phase power supply system and compensation device of co-phase power supply,the traction substation is provided with the ability to regulate the bus voltage by adding a series converter.By analyzing the expression of traversing power under no-load conditions,comparing the effects of two traversing power suppression methods,a traversing power suppression method based on phase difference active power droop control is put forward.The simulation analyzed the effect of traversing power suppression and verified the effectiveness of the proposed scheme.The results showed that:the scheme for traversing power suppression put forward in the paper can completely suppress the traversing power under both no-load and traction conditions,effectively improving the situation of load imbalance in traction substations.
through co-phase power supply systemtraversing powervoltage phase differencedroop control