PHOTOVOLTAIC FED MULTILEVEL INVERTER DESIGN USING PODPWM TECHNIQUE FOR IMPROVED POWER QUALITY
DOI:
https://doi.org/10.29284/ijasis.5.1.2019.8-14Keywords:
Multi level inverter, CHB-MLI, POD-PWM, THD reduction, power qualityAbstract
In this study, an efficient technique to improve and maintain the voltage levels of Cascaded H-Bridge Multi-Level Inverter (CHB-MLI) which utilizing PhotoVoltaic (PV) panel sources is presented. It is designed to make fifteen level output voltage and tested under the various levels of resistive loads. It produces staircase output with reduced component size, increases the output voltage level, reduces the voltage stress across the load/switches, reduces the Total Harmonic Distortion (THD) and increases the voltage gain. The switching pulses are generated using Phase Opposition Disposition (POD)-Pulse Width Modulation (PWM) technique. It is modeled and simulated using SIMULINK graphical programming environment in MATLAB. Results prove that the system provides lower THD than conventional systems.
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