Conference paper
A novel optimized LCL-filter designing method for grid connected converter
This paper presents a new LCL-filters optimized designing method for grid connected voltage source converter. This method is based on the analysis of converter output voltage components and inherent relations among LCL-filter parameters. By introducing an optimizing index of equivalent total capacity of all filter components, with clear physical meaning of minimum cost and volume, a set of optimal values of attenuation ratio and inductancesplit- ratio is obtained for deciding all LCL-filter parameters.
With this method, filter overall capacity can be minimized while the grid limit of switching frequency distortion is fulfilled. Compared to the existing methods, the proposed method contains only four steps without try-and-error process, so it is efficient and easy to implement. Simulation results of a 50kVA grid-connected inverter with two sets of LCL-filter parameters under different optimizing condition are presented to verify the reasonability and feasibility of the method.
Language: | English |
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Publisher: | IEEE Computer Society Press |
Year: | 2010 |
Pages: | 802-805 |
Proceedings: | 2nd International Symposium on Power Electronics for Distributed Generation Systems |
ISBN: | 142445669X , 142445669x , 1424456703 , 1424456711 , 9781424456697 , 9781424456703 and 9781424456710 |
Types: | Conference paper |
DOI: | 10.1109/PEDG.2010.5545882 |
ORCIDs: | Rasmussen, Tonny Wederberg |
Capacitors Converters Harmonic analysis Inductance Inverters LCL-filter LCL-filter design Power harmonic filters Switching frequency attenuation ratio grid connected inverter grid connected voltage source converter grid-connected inverter inductance-split-ratio invertors optimized design power convertors power filters switching frequency distortion voltage source converter