Title :
A multilevel PWM inverter topology for photovoltaic applications
Author :
Agelidis, V.G. ; Baker, D.M. ; Lawrance, W.B. ; Nayar, C.V.
Author_Institution :
CRESTA, Curtin Univ. of Technol., Perth, WA, Australia
Abstract :
A multilevel pulse-width modulated (PWM) single phase voltage-source inverter topology for photovoltaic applications is discussed in this paper. The use of the phase opposition (PO) carrier disposition multicarrier PWM switching technique for this topology is presented. Inverter switch control signals are derived. A 5-level and a 3-level PWM voltage waveform across the load is generated, for high and low modulation indexes respectively. Performance characteristics including total harmonic distortion for a range of operating conditions of the inverter are provided. Theoretical considerations discussed in this paper are supported with simulation and experimental results taken from a low power laboratory prototype
Keywords :
PWM invertors; harmonic distortion; photovoltaic power systems; power system harmonics; switching circuits; 3-level PWM voltage waveform; 5-level PWM voltage waveform; high modulation index; inverter switch control signals; low modulation index; multicarrier PWM switching; multilevel PWM inverter topology; phase opposition carrier disposition; photovoltaic applications; single phase voltage-source inverter; total harmonic distortion; Phase modulation; Photovoltaic systems; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Solar power generation; Switches; Topology; Total harmonic distortion; Voltage;
Conference_Titel :
Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on
Conference_Location :
Guimaraes
Print_ISBN :
0-7803-3936-3
DOI :
10.1109/ISIE.1997.649027
