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

fYear

2011

fDate

16-18 Dec. 2011

Firstpage

1

Lastpage

4

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);

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2011 Annual IEEE

Conference_Location

Hyderabad

Print_ISBN

978-1-4577-1110-7

Type

conf

DOI

10.1109/INDCON.2011.6139534

Filename

6139534