Total Harmonic Distortion, Distortion Factor & Crest Factor in Sven Level Cascaded H-Bridge Inverter for Different PWM Control Strategies: A Comparative Study

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Provided by: International Research Publication House
Topic: Hardware
Format: PDF
The MultiLevel Inverter (MLI) topology gives the advantages of usage in high power and high voltage application with reduced harmonic distortion without a transformer. Multi carrier PWM techniques are extensions of two level PWM methods; the selected switching technique to control the MLI will also have an effective role on harmonic elimination while generating the ideal output voltage. The most common MLI's are the Neutral-Point-Clamped inverter (NPC), Flying Capacitor inverter (FC), and Cascaded H-Bridge inverter (CHB). Different multi carrier PWM techniques are applied to CHB inverter and the performance of circuit topology is analyzed using Matlab/Simulink.
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