Title :
Active damping control of LLCL filters for three-level t-type grid converters
Author :
Alemi, Payam ; Dong-Choon Lee
Author_Institution :
Dept. of Electr. Eng., Yeungnam Univ., Gyeongsan, South Korea
Abstract :
In this paper, an active damping control scheme using the PR (proportional and resonant) regulator is proposed to eliminate the resonance for the grid-connected T-type three-level PWM converter systems with LLCL filter by which the total inductance can be reduced compared with the conventional LCL filters. The simulation results have verified the validity of the proposed control algorithm for a 25-kW three-phase T-type converter.
Keywords :
AC-DC power convertors; PWM power convertors; damping; power grids; power harmonic filters; LLCL filters; PR regulator; active damping control scheme; grid-connected T-type three-level AC-DC PWM converter systems; power 25 kW; proportional-and-resonant regulator; resonance elimination; total inductance reduction; Capacitors; Filtering algorithms; Reactive power; Semiconductor optical amplifiers; LLCL filter; PR control; grid-connected converter;
Conference_Titel :
Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International
Conference_Location :
Hiroshima
DOI :
10.1109/IPEC.2014.6869739
