Title :
Resonance damping of LCL filter based grid-connected inverter
Author :
Han, Sang-Hyub ; Park, Jong-Hyoung ; Kim, Heung-Geun ; Cha, Honnyong ; Chun, Tae-Won ; Nho, Eui-Cheol
Author_Institution :
Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
Three-phase PWM inverters are connected to the grid by an LC or an LCL filter. Although an LCL filter is more effective since it more efficiently attenuates the switching harmonics, but it causes stability problems. To enable a stable operation, either a damping resistor or an active damping algorithm has to be used. However, while a damping resistor causes additional losses, to avoid these disadvantages, this paper shows simulation results of a simple active damping solution which is suitable for industrial applications.
Keywords :
LC circuits; PWM invertors; power conversion harmonics; power grids; power harmonic filters; resistors; switching convertors; LCL filter; active damping; damping resistor; grid-connected inverter; resonance damping; stability problems; switching harmonics attenuation; three-phase PWM inverters; Inductors; Inverters; Lead; Switches; Active damping; LCL filter; control of three-phase pulse width modulated (PWM) inverter;
Conference_Titel :
Power Electronics and Motion Control Conference (IPEMC), 2012 7th International
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-2085-7
DOI :
10.1109/IPEMC.2012.6258937
