Fueled by stricter energy efficiency demands, new traction drive solutions are beginning to be explored. One such example is single-axle control for metros, using induction, asynchronous or synchronous motor technologies.
With single-axle control, each converter feeds only one motor. Every axle is controlled individually, allowing for precise adhesive control. The solution also provides very high redundancy.
Using low-resistance copper rotors in the traction motors allows for more demanding mission cycles, while maintaining the vehicle’s high energy efficiency. By utilizing advanced calculation tools, ABB is able to boost the energy efficiency of asynchronous technologies – while being at the R&D forefront for synchronous motors.