Experimental study on increasing regenerative power by improving regenerative brake control of rail vehicles in DC-electrified railways

In a DC-electrified railway system, the torque control of traction motors according to the input DC voltage of the traction inverter is generally applied during regeneration. It is effective in increasing the gain of this regenerative brake control for utilization of more regenerative brake power. In this article, the authors investigated the mechanism of increasing regenerative power when the regenerative brake control improved by theoretical analysis and an experimental on-track test.