Title :
A novel control strategy of LCL-VSC based on notch concept
Author :
Liu, Chun ; Zhang, Xing ; Tan, LiHua ; Liu, Fang
Author_Institution :
Hefei Univ. of Technol., Hefei, China
Abstract :
Compared to L-type filter, LCL-type filter have resonance frequency point, consequently reduce the reliability of the VSC converter. The general control strategy with passive damping or active damping can improve the stability of the converter, but it will bring extra loss, and need more sensors. This paper compare and analysis the performance of LCL converter controller with different feedback variables. Based on the optimization choice of feedback variable, a novel active damping control strategy with notch concept is proposed. The design method of notch parameter is also proposed. The simulation and experimental results verifies the control system design.
Keywords :
Capacitors; Control systems; Converters; Damping; Low pass filters; Mathematical model; Voltage control; LCL; Voltage Source Converter; active damping; grid current; notch concept;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2010 2nd IEEE International Symposium on
Conference_Location :
Hefei, China
Print_ISBN :
978-1-4244-5669-7
DOI :
10.1109/PEDG.2010.5545767
