Load scene reduction method for traction power supply system

The invention relates to the technical field of flexible direct-current traction power supply, in particular to a traction power supply system load scene reduction method, which comprises the following steps: acquiring traction load scene prediction data considering power uncertainty and departure interval uncertainty; mapping the train power of the traction load scene prediction data to a traction station based on power flow analysis to obtain secondary traction load scene prediction data; reducing the secondary traction load scene prediction data based on a clustering algorithm according to a preset load scene scale; and screening out an extreme scene and a typical scene from the reduced secondary traction load scene prediction data. The method aims at solving the technical problem that the scale of traction load scene prediction data considering uncertainty is large, the traction load scene prediction considering uncertainty is reduced, and it is guaranteed that the reduced load scene prediction data effec