Comparative analysis of LCL filter with active and passive damping methods for grid-interactive inverter system

Author

Sowjanya, M. Lakshmi ; Babu, B. Chitti

Author_Institution

Dept. of Electr. Eng., Nat. Inst. of Technol., Rourkela, India

fYear

2014

fDate

Feb. 28 2014-March 2 2014

Firstpage

350

Lastpage

355

Abstract

This paper presents the control strategy for a three-phase LCL-filter type based grid connected inverter system for photovoltaic (PV) applications. The control strategy proposed in the paper involves the independent control of active and reactive power injected into the grid during steady state and transient conditions. In addition to that, a comparative study between active and passive damping configurations for LCL type filter resonance damping is also analyzed. The control strategy implemented on a three-phase grid connected PV-inverter is studied and verified by computer simulation based on MATLAB Simulink and the results are analyzed for effectiveness of the study.

Keywords

invertors; photovoltaic power systems; power system interconnection; reactive power control; LCL filter; MATLAB Simulink; active damping methods; computer simulation; grid connected inverter system; grid-interactive inverter system; independent control; passive damping methods; photovoltaic; reactive power; three-phase LCL-filter; Active filters; Damping; Inverters; Power harmonic filters; Reactive power; Steady-state; Voltage control; LCL-Filter; Proportional-Resonant (PR) Controller; Renewable Energy Source (RES); active damping; passive damping;

fLanguage

English

Publisher

ieee

Conference_Titel

Students' Technology Symposium (TechSym), 2014 IEEE

Conference_Location

Kharagpur

Print_ISBN

978-1-4799-2607-7

Type

conf

DOI

10.1109/TechSym.2014.6808074

Filename

6808074