Fundamental-Frequency-Modulated Six-Level Diode-Clamped Multilevel Inverter for Three-Phase Stand-Alone Photovoltaic System


Özdemir E. , Özdemir Ş. , Tolbert L. M.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, cilt.56, ss.4407-4415, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 56
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1109/tie.2008.928096
  • Dergi Adı: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
  • Sayfa Sayısı: ss.4407-4415

Özet

This paper presents a fundamental-frequencymodulated diode-clamped multilevel inverter (DCMLI) scheme for a three-phase stand-alone photovoltaic (PV) system. The system consists of five series-connected PV modules, a six-level DCMLI generating fundamental-modulation staircase threephase output voltages, and a three-phase induction motor as the load. In order to validate the proposed concept, simulation studies and experimental measurements using a small-scale laboratory prototype are also presented. The results show the feasibility of the fundamental frequency switching application in three-phase stand-alone PV power systems.