11-12-2012, 04:04 PM
ACTIVE FRONT END CONVERTER WITH VECTOR CONTROL STRATEGY
ACTIVE FRONT.pptx (Size: 48.15 KB / Downloads: 22)
WHAT IS ACTIVE FRONT END CONVERTER?
The converter is typically connected in the line-side of a motor drive, this is called a line-side converter or front-end converter (FEC).
In converter a high capacitance on the dc side and a three-phase inductor in the line-side.
ADVANTAGES
advantage of AFE rectifiers is the regeneration
capability, especially for drive applications
UPF, Bidirectional Power Flow, Suitable for Motor Drives
Vector Control - Advantages:
Sinusoidal quantities like voltages and current appear like DC quantities
Decoupled control of active and reactive power
Easy reference generation
Controllers - (both current and voltage loop) handle DC quantities
PI Controllers can be used for inner as well as outer loops
not possible in classical control