H-Bridge based Five-Level Current-Source Inverter for Grid Connected Photovoltaic Power Conditioner
Abstract: This paper presents
an application of a new circuit configuration of H-bridge based five-level
current-source inverter (CSI) used for grid connected photovoltaics system. In
this topology, the intermediate level currents of the five-level current
waveform are generated by connecting DC current module to the H-bridge CSI.
Some new features can be derived using this new topology such as reducing the
switching power device count, and reducing the inductor conduction losses of
the inverter. The proposed five-level CSI is tested for grid connected
photovoltaic system through computer simulation using PSIM software.
Furthermore, the experimental test results of the proposed five-level CSI are presented.
The results show that the inverter works properly generating a five-level
current waveform and injecting a sinusoidal current into power grid with less
harmonics distortion and with unity power factor operation.
Author: Suroso, Daru Tri
Nugroho, Toshihiko Noguchi
Journal Code: jptkomputergg130073
