Saving money: SiC in UPS applications

Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2014

Pages: 7Language: englishTyp: PDF

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Buschhorn, Stefan; Vogel, Klaus (Infineon Technologies AG, Max-Planck-Str. 5, 59581 Warstein, Germany)

Efficiency is known as the main lever for cost saving in UPS systems. Based on semiconductor power loss measurements and subsequent calculations, the losses and efficiency for a typical application are compared for Si-IGBT and SiC solutions using various topologies. The resulting costs for investment and operation are estimated for a typical 250kVA UPS system with both chip technologies. A comparison clearly shows the savings for SiC-based solutions, despite the fact of higher power module costs.