Dynamic electromechanical model of a high speed train

High-speed traction studies need to carry out detailed equations for formalising a complete electromechanical model, representing the dynamic coupling of electrical and mechanical phenomena. Starting from Lagrange and Park theories, and after recalling the general criteria for the set-up of the two distinct mechanical and electrical sub-systems, the new formulisation of a complete dynamic model is presented, with specific reference to a train dedicated to high-speed services. Simulations are carried out relating to the steady state condition at speed of 100 km/hr. Representative of the dynamics of each single component, the investigation focuses in particular on the parts of transmission (rotor, cardan joint, gearcase) and the relevant torques associated to the short circuit dynamics.