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

Volume

2

fYear

2012

fDate

2-5 June 2012

Firstpage

796

Lastpage

800

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6258937

Filename

6258937