New Method for Determining the Peak Ripple Current for Different Modulation Techniques of Hard-Switching Three-Phase VSIs
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:10.30420/566091355
Proceedings: PCIM Europe 2023
Pages: 8Language: englishTyp: PDF
Authors:
Truschenski, Bela; Reinhold, Andreas; Praast, Marcus; Komma, Thomas (FTZ Leipzig e.V., at Leipzig University of Applied Sciences (HTWK), Germany)
Abstract:
Peak ripple current is widely used to design inverter-side inductances of VSIs. It seems natural, that detailed studies have already been done. Nevertheless, this work shows a large divergence between existing design rules and actual results. For this reason, a new and fast method to evaluate the peak ripple current is presented. The method covers different topologies as same as different modulation techniques and allows a fast and accurate design of the inverter-side inductance. As an example, the 2-level VSI and 3-level T-Type VSI, both with CSV-PWM, are examined in more detail.