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A generic approach for comparing input filter efforts of voltage- and current source converters

: Schramm, A.; Lanfer, H.; Petzoldt, J.; Rädel, U.; Schwarzmann, H.; Erlbacher, T.


Institute of Electrical and Electronics Engineers -IEEE-:
21st International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2012. Vol.2 : Sorrento, Italy, 20 - 22 June 2012; Proceedings
Piscataway: IEEE, 2012
ISBN: 978-1-4673-1299-8 (print)
ISBN: 978-1-4673-1300-1
ISBN: 978-1-4673-1301-8
International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) <21, 2012, Sorrento>
Fraunhofer IISB ()

Matrix converters are said to redeem the very well established DC-link converter in some fields of application. One general idea behind the matrix converter approach is the absent DC-link capacitor which is referred as one reason for the matrix converter being superior to the DC-link converter regarding its size and lifespan. On the other hand, the input filter of the matrix converter is said to be larger than the input filter of DC-link converters undermining the afore mentioned advantage of the matrix converter concerning the size. In this paper a general approach regarding the input filter design is applied to both converter types to perform a fair-handed filter comparison which also takes into account the parasitic series resistances of the reactances. A first theoretical investigation based on a simplified spectrum is performed for a DC-link converter and a matrix converter both designed for 3 kVA apparent output power.