Crane Regenerative Breaking System
When they are in motion, cranes absorb a remarkable quantity of power to move and lift loads of even hundreds of tons, but a large amount of energy has to be converted back from kinetic energy to electric power during the stopping or braking operations of the crane motors.
In conventional solutions this energy is dissipated in dedicated resistors installed on board the crane.
A valuable, economical and "ecological" alternative promoted by Danieli Centro Cranes is the use of Regenerative Converters, able to send back to the grid the electric energy generated during braking, instead of just dissipating it as useless heat.
In fact, if properly managed this energy can be sent back to the grid, thereby offsetting the crane's energy consumption.
In addition to the economic benefits, the crane's configuration is also simpler, with considerable savings in space that is normally occupied by electric resistors, with less electric cables and consequently lower cost.
The Crane Regenerative Braking System is composed of standard regenerative converters that together with the crane's variable frequency drives, inject back to the plant grid the power generated during the braking phase of all crane movements.
The system is integrated with suitable vector control power processing units that make it possible to set the power factor (cos phi) and thus the reactive power compensation, in order to minimize grid disturbances.
In conventional solutions this energy is dissipated in dedicated resistors installed on board the crane.
A valuable, economical and "ecological" alternative promoted by Danieli Centro Cranes is the use of Regenerative Converters, able to send back to the grid the electric energy generated during braking, instead of just dissipating it as useless heat.
In fact, if properly managed this energy can be sent back to the grid, thereby offsetting the crane's energy consumption.
In addition to the economic benefits, the crane's configuration is also simpler, with considerable savings in space that is normally occupied by electric resistors, with less electric cables and consequently lower cost.
The Crane Regenerative Braking System is composed of standard regenerative converters that together with the crane's variable frequency drives, inject back to the plant grid the power generated during the braking phase of all crane movements.
The system is integrated with suitable vector control power processing units that make it possible to set the power factor (cos phi) and thus the reactive power compensation, in order to minimize grid disturbances.