Objective

It aims to reproduce the electrical power flows of dc-double track tramway line during regenerative braking operation of  Sirio-vehicle equipped on-board with energy storage device. It is possible to simulate regenerative substation making use supercapacitors devices, too.

Short description

The simulator is mainly composed of electrical substation, the double track supply line and the power train of vehicles.  The primary feeder is composed of variable auto-transformer with a diode unidi- rectional rectifier. The rectified voltage is equal to 435  V. Two proper variable resistors are  placed in parallel in order to simulate the variations of the double track line resistances according to the vehicles movement. The electrical drives of the simulator consist of two dc/ac voltage source inverters and two induction motors with rated powers of 5.5 kW  and 11 kW  respectively, simulating the electrical drives of the light transportation vehicles. The stationary storage system is realized by SC modules interfaced with the dc traction line  by means of a three-leg full bridge 20 kVA dc–dc converter.