371 / 2021-11-10 19:43:15

Research on Parametric Modeling Method and Evaluation Technology of Power Supply Load of Rail Transit Main Transformer Network

Dynamic Load Modeling; Load Evaluation; Main Transformer; Traction Load Modeling

High voltage and insulation technology > High Voltage insulation technologies

The main transformer load of rail transit is an impact load, which is mainly composed of traction load and Dynamic illumination load. Parametric modeling of the power supply load of the main transformer is the basis for the prediction of the main transformer load level and load capacity evaluation. Based on the measured main transformer load data, the parameter estimation of the load model is proposed, the physical meaning of the model parameters is analyzed, and the load of the rail transit main transformer is evaluated based on the simulation model, and the maximum current duration that the main transformer is allowed to withstand under normal load operation is obtained.