Title :
Comparison of Cascaded H-Bridge, Neutral Point Clamped and Flying Capacitor multilevel inverters using multicarrier PWM
Author :
Porselvi, T. ; Muthu, Ranganath
Author_Institution :
Dept. of Electr. & Electron. Eng., Sri SaiRam Eng. Coll., Chennai, India
Abstract :
Multilevel Inverters are becoming popular for their high voltage operating capability for high power applications. This paper presents a comparative study of Cascaded H-Bridge, Neutral Point Clamped and Flying Capacitor multilevel voltage source inverters. These five-level inverters are simulated in MATLAB/ Simulink using multi carrier sine pulse width modulation. FFT analyses of output voltages for an RL load is carried out. The advantages of Cascaded H-Bridge inverter over the other two types of inverters are brought out in this paper.
Keywords :
PWM invertors; fast Fourier transforms; mathematics computing; power capacitors; FFT analyses; Matlab; RL load; Simulink; cascaded H-Bridge inverter; flying capacitor multilevel inverters; high power applications; high voltage operating capability; multicarrier PWM; multicarrier sine pulse width modulation; neutral point clamped inverter; Capacitors; Frequency modulation; Inverters; MATLAB; Mathematical model; Pulse width modulation; Total harmonic distortion; Multi Carrier Pulse Width Modulation (MCPWM); Multi Level Inverter (MLI); Total Harmonic Distortion (THD);
Conference_Titel :
India Conference (INDICON), 2011 Annual IEEE
Conference_Location :
Hyderabad
Print_ISBN :
978-1-4577-1110-7
DOI :
10.1109/INDCON.2011.6139534
