Evaluation of modulation techniques for 5-level inverter based on multicarrier level shift PWM

Author

Tamasas, Mohamed ; Saleh, Mohamad ; Shaker, Matineh ; Hammoda, Ahmed

Author_Institution

Dept. of Electr. Eng., Univ. of Benghazi, Benghazi, Libya

fYear

2014

fDate

13-16 April 2014

Firstpage

17

Lastpage

23

Abstract

Multilevel inverter has become attractive in the power industries and it can be applied in many applications especially in renewable energy systems and improvement of the power quality. On the other hand, the technique used to generate the required switching pulses plays an important role to improve the inverter characteristics. The paper presents an assessment of three different types of control techniques based on multicarrier level shifted PWM (S-IPD, S-POD and S-APOD) applied to a single phase full bridge five level diode clamped inverter. The main parameters considered are the Total Harmonic Distortion (THD) and harmonic spectrum. The reported results are based on the experimental and simulation realization. In addition, the simulation and experimental output voltages and currents waveforms of all mentioned techniques are presented.

Keywords

PWM invertors; bridge circuits; harmonic distortion; power conversion harmonics; THD; control techniques; diode clamped inverter; five level inverter; harmonic spectrum; modulation technique; multicarrier level shift PWM; multicarrier level shifted PWM; single phase full bridge inverter; switching pulse generation; total harmonic distortion; Capacitors; Frequency modulation; Inverters; Pulse width modulation; Switches; Topology; Five level DC inverter; S-IPD; S-POD and S-APOD; level shifted PWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Mediterranean Electrotechnical Conference (MELECON), 2014 17th IEEE

Conference_Location

Beirut

Type

conf

DOI

10.1109/MELCON.2014.6820499

Filename

6820499