Simulation of traction rectifier using proprietary simulators

The dynamic study of inevitably involves simulation techniques, especially with high-power circuits such as traction rectifiers, because of the time and costs involved in experimental observations. Furthermore, it is possible in a simulation to undertake ´experiments´ that would be impossible (or unrealistic) in practice and to test the validity of modelling assumptions which can be a considerable aid to developing adequate analytical models of circuit behaviour or to evolving faster simulation methods. This paper reviews the results obtained from using a particular simulator (Saber) for the modelling of a 12-pulse traction rectifier including the influence of variable mutual coupling between the independent secondaries which feed the two 6-pulse bridges