Efficiency Improvement of PV-Inverters with SiC-DMOSFETs

Author:

Burger Bruno1,Kranzer Dirk1,Stalter Olivier1

Affiliation:

1. Fraunhofer Institute for Solar Energy Systems (ISE)

Abstract

The new MOSFET-generation with SiC-materials seems well suited for power electronic converters up to 1200 V operating-voltage, and particularly for grid-feeding PhotoVoltaic-inverters, which transfer the DC power of the solar panel to the AC grid. Their high switching speed and low on-resistance RDS(on) allow the use of higher switching frequencies, which could mainly reduce the costs and weight of the converters. This paper shows a comparison between IGBT and SiC DMOSFET devices and first measurements of some 1200 V / 10 A SiC-DMOSFET samples made by CREE®.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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