Two-Stage Grid-Connected Inverter for PV Systems

ALTIN N., ÖZDEMİR Ş., Komurcugil H., SEFA İ., Biricik S.

12th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), Doha, Qatar, 10 - 12 April 2018, (Full Text) identifier identifier

  • Nəşrin Növü: Conference Paper / Full Text
  • Cild:
  • Doi nömrəsi: 10.1109/cpe.2018.8372540
  • Çap olunduğu şəhər: Doha
  • Ölkə: Qatar
  • Açar sözlər: Grid interactive inverter, VSI, LCL filter, SMC, CONTROL STRATEGY, SLIDING-MODE, POWER-CONTROL, CONTROLLER, MPPT, VSI, FUTURE
  • Açıq Arxiv Kolleksiyası: Konfrans Materialı
  • Adres: Yox

Qısa məlumat

In this study, a two-stage grid-connected inverter is proposed for photovoltaic (PV) systems. The proposed system consist of a single-ended primary-inductor converter (SEPIC) converter which tracks the maximum power point of the PV system and a three-phase voltage source inverter (VSI) with LCL filter to export the PV supplied energy to the grid. The incremental conductance (IC) method with novel variable step algorithm is used as maximum power point tracking algorithm. Thus, tracking speed and accuracy is improved. A sliding-mode control (SMC) strategy is used to control the inverter stage. Obtained simulation results show that proposed system tracks the maximum power point of the PV system and injects sinusoidal currents to the grid.