NDLI: A new multicarrier SPWM technique for five level cascaded H-bridge inverter

Content Provider	IEEE Xplore Digital Library
Author	Paikray, A. Mohanty, B.
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. Eng., Veer Surendra Sai Univ. of Technol., Burla, India (Paikray, A.; Mohanty, B.)
Abstract	Many researchers have investigated modulation techniques applied to the cascaded multilevel inverter to improve its harmonics performance. Different methods have been proposed for cascaded multilevel inverter modulation that one of them is level-shifted PWM method (LS-PWM). In this paper, a novel multicarrier SPWM technique which uses a trapezoidal triangular carrier is proposed for a five level cascaded multilevel inverter. This carrier waveform is being implemented with different LS-PWM techniques such as phase disposition (PD), phase opposition disposition (POD) and alternative phase opposition disposition (APOD). The line voltage and total harmonics distortion (THD) obtained in various techniques are compared with the outputs of triangular carrier wave. To validate the improvement, these PWM techniques are simulated for a 1KW, 3φ five level inverter with 2 KHz switching frequency using MATLAB/SIMULINK. The effect of modulation index on the line voltage and harmonics are also analyzed. The proposed switching technique enhances the fundamental component of the output voltage and lowers total harmonic distortion.
Starting Page	1
Ending Page	6
File Size	2397549
Page Count	6
File Format	PDF
e-ISBN	9781479949823
DOI	10.1109/ICGCCEE.2014.6922379
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-06
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency modulation Triangular Multicarrier PWM (TMC PWM) Trapezoidal Triangular Multicarrier PWM(TTMC PWM) Pulse width modulation Cascaded Multilevel Inverter (CMI) Harmonic analysis Inverters Total Harmonics Distortion (THD) Topology Power harmonic filters Sinusoidal PWM (SPWM)
Content Type	Text
Resource Type	Article

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