A Study on the Algorithm Used in the Simulation of Transaction Power Supply System for Rail Transportation

Because of the nonlinearity of DC power supply system model for urban rail transportation,most simulation algorithms for model are based on iterative techniques.In this Paper,two kinds of iterative methods namely Newton-iterative and Double-linear iterative are presented;they have also been tested and compared with respect to convergence effect and rapidity.By changing the circuit structure model and selecting suitable iterative algorithms,the ideal simulation effect will be obtained.