Three-Phase Grid-Connected Five-Level Packed U-Cell (PUC-5) Inverter Design

Yuksel A., ALTIN N.

11th IEEE International Conference on Renewable Energy Research and Applications, ICRERA 2022, İstanbul, Türkiye, 18 - 21 Eylül 2022, ss.490-495 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/icrera55966.2022.9922807
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.490-495
  • Anahtar Kelimeler: carreier vbased PWM, multilevel inverter, PUC5
  • Gazi Üniversitesi Adresli: Evet

Özet

© 2022 IEEE.In this study, the design process, modulation strategy and DC capacitor voltage balancing of a three-phase five-level packed U-cell (PUC5) inverter topology are presented for grid-connected renewable energy applications. The PI controller in stationary reference frame is used as the current controller. The modulation strategy for PUC5 grid-connected inverter is also presented. The proposed system is validated with MATLAB/Simulink simulations results. The obtained results show that the proposed system is capable of injecting three-phase currents, which are balanced and in sinusoidal waveform, to the grid. The THD value of the inverter output current is obtained as 1.63% which meets the international standards. In addition, dynamic response of the system is also tested, and validated.