Energy Recovery

ERS 2G – Energy Recovery System for lifts

Stores the energy wasted by the elevator when motor brakes to return it in the next consumption trip. Energy savings up to 70% with no harmonic distortion and no added stand-by consumption with a simple two-wire connection to any drive.

ERS 2G is a bidirectional high-efficiency DC/DC converter integrating energy storage module of ultracapacitors. A very simple connection of ERS 2G to any VVVF drive is enough to transform the elevator to a regenerative one with storage.

In detail:

• Only the connection to DC link of the drive is enough for the system to automatically store the energy in the supercapacitors when generated and return it when there is a consumption.

• Supercapacitor modules offer better power density and cycling features than batteries. Therefore, they are the best possible solution for fast charging and discharging applications such as in elevators.

• Ultracapacitors require no maintenance.

• Simple integration both in new or existing elevators with no need for replacements.

Advantages of using ERS 2G:

• Recovers and stores the energy generated by the elevator to return it in the next consumption trip or to support the drive’s standby.

• No regeneration to the grid. No harmonic problems.

• Granting improvement of the efficiency classification of the lift.

• Elevator actually consumes less energy from mains.

• Very simple two-wire connection to any drive, new or existing.