Title :
Passive Filter Design for Three-Phase Inverter Interfacing in Distributed Generation
Author :
Ahmed, K.H. ; Finney, S.J. ; Williams, B.W.
Author_Institution :
Strathclyde Univ., Glasgow
fDate :
May 29 2007-June 1 2007
Abstract :
With the growing use of inverters in distributed generation, the problem of injected harmonics becomes critical. These harmonics require the connection of low pass filters between the inverter and the network. This paper presents a design method for the output LC filter in grid coupled applications in distributed generation systems. The design is according to the harmonics standards that determine the level of current harmonics injected into the grid network. Analytical expressions for the maximum inductor ripple current are derived. The filter capacitor design depends on the allowable level of switching components injected into the grid. Different passive filter damping techniques to suppress resonance affects are investigated and evaluated. Simulated results are included to verify the derived expressions.
Keywords :
damping; distributed power generation; passive filters; power capacitors; power harmonic filters; damping techniques; distributed generation; filter capacitor; grid network; harmonics standards; injected harmonics; low pass filters; maximum inductor ripple current; output LC filter; passive filter; resonance affects; switching components; three-phase inverter; Capacitors; Damping; Design methodology; Distributed control; Inductors; Inverters; Low pass filters; Passive filters; Power harmonic filters; Resonance; DG; Damping; Filtering; Grid connected; Harmonics; Inverter;
Conference_Titel :
Compatibility in Power Electronics, 2007. CPE '07
Conference_Location :
Gdansk
Print_ISBN :
1-4244-1055-X
Electronic_ISBN :
1-4244-1055-X
DOI :
10.1109/CPE.2007.4296511