An Open Loop Evaluation of Five Phase Z-Source Inverter


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Abstract


This paper introduces an implementation of pulse-width modulation (PWM) known as simple boost PWM (SBPWM) for Z-source inverter (ZSI) under open-loop system for five-phase application. A detail assessment of the inverter by comparing the simulation with the theoretical output voltage, determining total harmonic distortion (THD) of the output under EN61000-3-2 standard and investigating the effect of modulation index over voltage gain, output voltage (line-line) and total power dissipation. A model of five-phase ZSI was built in MATLAB/Simulink with resistive load. The findings from the analysis show that the results obtained from the theoretical and simulation is similar, the THD comply with EN61000-3-2 standard which obtain below 2%, and reducing the modulation index will increase the voltage gain, output voltage (line-line) and total power dissipation.
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Keywords


Simple Boost PWM (SBPWM); Z-Source Inverter (ZSI); Total Harmonic Distortion (THD)

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References


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