الوصف

Active Front End

Active Front End (AFE) is a controllable rectifier with advantages such as providing bidirectional power exchange between AC and DC power and regenerating reusable power to the mains to reduce the cost of power. It is an option for frequency inverters to return energy to the line supply.

It provides *-quadrant operation and thus is ideal for all applications with a generator operating mode.

It uses SPWM modulation to greatly reduce distinctive peaks of current and form perfect sine wave current.

It eliminates high order harmonics and reduces the total current distortion factor THD(i) to a value of less than 5%
 

Indutrial Applications

‧Large-inertia load applications: roving machines, horizontal spiral centrifuges, drilling machines. 
‧*-quadrant load applications: cranes, cargo elevators, passenger elevators, oil production machines 
‧Quick brake applications: machine tools, high-speed spindles, bag making machines. 
‧Long-term feedback energy applications: wind power systems and water power systems. 
‧Parallel DC power supply applications: logistics and storage systems, wind power systems, LED lighting systems. 
‧Provides excellent power quality for the communication transmission systems of Power Line products.

Applications

‧Overhead Traveling Crane

‧Elevator