Comparative analysis of the selective resonant LCL and LCL plus trap filters

Remus Narcis Beres, Xiongfei Wang, Frede Blaabjerg, Claus Leth Bak, Marco Liserre

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5 Citationer (Scopus)

Abstrakt

In this paper two promising LCL based filter topologies are evaluated against the well-known LCL with a damping resistor. The filters are designed for high power applications where the frequency modulation index is relatively low. The first topology is the selective resonant LCL filter which aim is to minimize the damping losses by bypassing the resistor at the fundamental and switching frequencies while preserving high attenuation at higher frequencies. A new design procedure is proposed for the selective resonant LCL filter. The presence of multi-tuned traps in the second topology aims to decrease the total size of the filter reactive elements while meeting current harmonic standards. It is found that selective resonant LCL filter provide much lower damping losses compared to the LCL filter with simple resistor topology. Additionally, for the trap topology a minimum switching frequency is determined which ensure that reduction in size of the filter is possible. The theoretical analysis is demonstrated by frequency analysis and time domain simulations.
OriginalsprogEngelsk
TitelProceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014
Antal sider8
ForlagIEEE Press
Publikationsdato2014
Sider740 - 747
Artikelnummer6850949
ISBN (Trykt)978-1-4799-5183-3
DOI
StatusUdgivet - 2014
Begivenhed14th International Conference on Optimization of Electrical and Electronic Equipment - Brasov, Rumænien
Varighed: 22 maj 201424 maj 2014

Konference

Konference14th International Conference on Optimization of Electrical and Electronic Equipment
LandRumænien
ByBrasov
Periode22/05/201424/05/2014
NavnOptimization of Electrical and Electronic Equipment (OPTIM), Proceedings
ISSN1842-0133

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