Title :
A novel control to actively damp resonance in input LC filter of a three-phase voltage source converter
Author :
Blasko, Vladimir ; Kaura, Vikram
Author_Institution :
Stand. Drives Div., Rockwell Autom.-Allen Bradley Co., Mequon, WI, USA
Abstract :
The voltage source converter (VSC) provides constant/controllable DC bus voltage, regenerating capability, controllable power factor, and nearly sinusoidal input current. If an input LC filter is added, it prevents pollution of the utility by the current ripple due to the pulsewidth modulation (PWM) switching. A novel control strategy for actively damping high-frequency resonance (above 1.5 kHz) in the input LC filter is presented. No additional sensors are required for the standard VSC. Theoretical results of the analysis and simulation are experimentally verified
Keywords :
PWM power convertors; circuit resonance; damping; electric current control; filters; power control; power factor correction; power system harmonics; voltage control; active damping; constant DC bus voltage; controllable DC bus voltage; controllable power factor; current ripple; digital current regulation; input LC filter; nearly sinusoidal input current; pulsewidth modulation switching; regenerating capability; resonance damping; three-phase voltage source converter; Converters; Damping; Filters; Pollution; Power conversion; Pulse width modulation; Reactive power; Resonance; Space vector pulse width modulation; Voltage control;
Journal_Title :
Industry Applications, IEEE Transactions on
