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Communication Dans Un Congrès Année : 2018

Loss-Based Design for Natural Balancing in Multicell Converters using Vectorized Models

Jaime W Zapata
  • Fonction : Auteur
Thierry Meynard
Guillaume Gateau

Résumé

Due to the inherent features of the multilevel Flying Capacitor (FC) converter, the voltages in the capacitors are naturally balanced under phase-shifted pulse width modulation (PS-PWM) techniques. Nevertheless, under certain operation conditions the voltages in the capacitors vary between the commutation cells and an external balancer booster is required. This paper provides a methodology to properly design the balance booster for a FC converter with n-cells based on vectorized models. However, due to the trade-off between balancing speed and power losses, it is difficult to design a balance booster based on speed requirements, and checking loss constraints afterwards may result in a very long iterative process. Designing for losses and checking for speed is a much simpler process and this illustrated here for different types of balance boosters. Some simulations results obtained in PLECS R , are provided to enhance the benefits of the vectorized model for power electronic circuits, and the application to the design of balance boosters is presented.
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Dates et versions

hal-02390993 , version 1 (19-11-2020)

Identifiants

Citer

Jaime W Zapata, Thierry Meynard, Guillaume Gateau. Loss-Based Design for Natural Balancing in Multicell Converters using Vectorized Models. 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Jun 2018, Amalfi, Italy. ⟨10.1109/SPEEDAM.2018.8445313⟩. ⟨hal-02390993⟩
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