Analysis of Tandem Diode Solutions for Power Modules in Motor Drive Applications
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091125
Proceedings: PCIM Europe 2023
Pages: 6Language: englishTyp: PDF
Authors:
Jappe, Tiago; Tauer, Matthias (VINCOTECH GmbH, Germany)
Major, Zoltan (VINCOTECH Hungaria Kft, Hungary)
Abstract:
Three-phase variable speed drive (VSD) inverter systems commonly use 1200 V Si IGBTs with antiparallel freewheeling diodes (FWD) and are operated at switching frequencies in the range of 4 ~ 6 kHz. This article proposes an alternative Si-based FWD solution comprising two 650 V devices connected in series without snubbers or other additional elements. The proposed setup improves system efficiency and cost-effectiveness compared to conventional 1200 V Si FWD and SiC based designs. Experimental results demonstrate the reliability of the proposed tandem FWD setup and their ability to exceed performance requirements at an affordable cost.