Novel Method for Modelling and Calculating the Harmonic Effect and Psophometric Disturbance of High Power Electric Traction

The paper presents the combination of frequency and time dependent model to simulate the effects of the power electric traction on the supply network. This novel method, called double domain simulation is improving the accuracy of the frequency domain simulation. To calculate the sophisticated model of the electric locomotive as a non-linear load a time dependent model must be used. The traction supply system together with the equivalent supply network impedance could be calculated in frequency domain. An iteration algorithm is developed converting the variables in every iteration step between the time and frequency domain.