Title of article
Comparative study of two cases of single-phase HCMLI using IPDPWM technique for standalone PV system
Author/Authors
Glaa Yahya, Massara Medical Instruments Technology Engineering Department - AL-Esraa University College, Baghdad, Iraq , Glaa Yahya, Mawadah Al Salam University College, Baghdad, Iraq
Pages
15
From page
2395
To page
2409
Abstract
The main aim of the paper is to reduce the Total Harmonic Distortion of a 9-level Hybrid Cascaded Multilevel Inverter for a standalone Photovoltaic system operated at Maximum powerpoint. The maximum power point is tracked using perturb and observe (P&O) method, a boost converter is used to implement this process. The output power is calculated using a small perturbation in the terminal voltage. The comparison between two cases of hybrid cascaded multilevel inverter using Phase Disposition Pulse Width Modulation has been done. Total harmonic distortion is minimized when one bridge is run in square wave mode and the other bridges are operated in pulse width modulation mode, according to the results of this comparison. The value of THD for HMLI output voltage is equal to 12.85 percent when all bridges are operated in PWM mode, according to simulation results. Finally, the results of the computer simulations using the MATLAB software are presented and discussed, along with a comparison of pulse width modulation strategies.
Keywords
Hybrid Cascaded Multilevel Inverter , Phase Disposition Pulse Width Modulation , Photovoltaic system , Maximum Power Point Tracking , Perturb and observe method , Total Harmonic Distortion
Journal title
International Journal of Nonlinear Analysis and Applications
Serial Year
2022
Record number
2713181
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