Weight Minimization of LCL Filters for High-Power Converters: Impact of PWM Method on Power Loss and Power Density

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For high-power grid-connected voltage source converters (VSC), weight reduction of the LCL filter is one of the main concerns, where a LCL filter can weigh hundreds of kilograms. It is a multidomain optimization issue to find the minimum weight of a LCL filter considering pulse-width modulation (PWM) method, control bandwidth, filter design, and magnetic components with given constraints, such as harmonic standards, semiconductor power losses, and cooling conditions. The comprehensive design procedure and analytical limits of a LCL filter for a 690-V/1.2-MW VSC is provided. In addition, a prototype system of 400 V/40 kW has been built to verify the design methodology and to investigate the impact of different PWM methods on the LCL filter.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2017-05
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, v.53, no.3, pp.2282 - 2296

ISSN
0093-9994
DOI
10.1109/TIA.2017.2657479
URI
http://hdl.handle.net/10203/273936
Appears in Collection
GT-Journal Papers(저널논문)
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