A study of carrier pulse width modulation for single phase 5-levels cascaded inverter
Corressponding author's email:
locnp@vlute.edu.vnDOI:
https://doi.org/10.54644/jte.65.2021.131Keywords:
Total harmonic distortion (THD%), carrier based pulse width modulation (CPWM), PWM technique in phase (PD PWM), phase-shift PWM technique (PS PWM), Cascaded inverter(CHB inverter)Abstract
This paper studies and compares carrier-based pulse width modulation (CPWM) techniques. In which, two techniques of co-phase carrier modulation (PD PWM) and phase shift carrier modulation (PS PWM) are applied on a 5-levels cascaded single-phase inverter (CHB Inverter). The quality of the converter is evaluated based on the total harmonic distortion (THD%) output current and voltage of the inverter to be investigated, analyzed, evaluated, and compared. The modeling and simulation for the 5-levles cascaded single-phase inverter are done by MATLAB/SIMULINK software and the simulation results will be experimentally verified on the 5-levels Cascaded inverter hardware model built according to flexible module form and controlled by DSP 28379D microcontroller.
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