Year 2019, Volume 32, Issue 2, Pages 471 - 481 2019-06-01

A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter

Rakesh KUMAR [1] , Deepa THANGAVELUSAMY [2]

53 130

An efficient pulse width modulation scheme for Cascaded H-Bridge inverter (CHBI) is proposed in this paper. The proposed modulation scheme is a low switching frequency modulation scheme termed as modified Nearest Level Modulation (mNLM) scheme. Compared to the conventional nearest level modulation (NLM) scheme, the proposed modulation scheme reduces the total harmonic distortion (THD) at the ac output of the inverter. The mNLM follows an algorithm presented in the paper in order to arrive at a set of switching angles for MLI which offers reduced THD. Simulation is carried out using MATLAB/Simulink 2015b software and hardware is presented which validates the simulation results. Results show that there is a notable reduction in the THD content with the use of proposed modulation scheme. Because of the improved THD content, improvement in the other inverter parameters such as rms voltage, rms current and increased output power is also observed.

Cascaded H-bridge inverter, Inverter modulation scheme, Multilevel inverter, Nearest level modulation, Total harmonics distortion
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Primary Language en
Subjects Engineering
Journal Section Electrical & Electronics Engineering
Authors

Orcid: 0000-0002-8851-4334
Author: Rakesh KUMAR (Primary Author)
Institution: Vellore Institute of Technology, India
Country: India


Orcid: 0000-0002-3876-3893
Author: Deepa THANGAVELUSAMY
Institution: Vellore Institute of Technology, India
Country: India


Dates

Publication Date: June 1, 2019

Bibtex @research article { gujs469820, journal = {GAZI UNIVERSITY JOURNAL OF SCIENCE}, issn = {}, eissn = {2147-1762}, address = {Gazi University}, year = {2019}, volume = {32}, pages = {471 - 481}, doi = {}, title = {A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter}, key = {cite}, author = {KUMAR, Rakesh and THANGAVELUSAMY, Deepa} }
APA KUMAR, R , THANGAVELUSAMY, D . (2019). A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter. GAZI UNIVERSITY JOURNAL OF SCIENCE, 32 (2), 471-481. Retrieved from http://dergipark.org.tr/gujs/issue/45480/469820
MLA KUMAR, R , THANGAVELUSAMY, D . "A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter". GAZI UNIVERSITY JOURNAL OF SCIENCE 32 (2019): 471-481 <http://dergipark.org.tr/gujs/issue/45480/469820>
Chicago KUMAR, R , THANGAVELUSAMY, D . "A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter". GAZI UNIVERSITY JOURNAL OF SCIENCE 32 (2019): 471-481
RIS TY - JOUR T1 - A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter AU - Rakesh KUMAR , Deepa THANGAVELUSAMY Y1 - 2019 PY - 2019 N1 - DO - T2 - GAZI UNIVERSITY JOURNAL OF SCIENCE JF - Journal JO - JOR SP - 471 EP - 481 VL - 32 IS - 2 SN - -2147-1762 M3 - UR - Y2 - 2019 ER -
EndNote %0 GAZI UNIVERSITY JOURNAL OF SCIENCE A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter %A Rakesh KUMAR , Deepa THANGAVELUSAMY %T A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter %D 2019 %J GAZI UNIVERSITY JOURNAL OF SCIENCE %P -2147-1762 %V 32 %N 2 %R %U
ISNAD KUMAR, Rakesh , THANGAVELUSAMY, Deepa . "A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter". GAZI UNIVERSITY JOURNAL OF SCIENCE 32 / 2 (June 2019): 471-481.
AMA KUMAR R , THANGAVELUSAMY D . A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter. GAZI UNIVERSITY JOURNAL OF SCIENCE. 2019; 32(2): 471-481.
Vancouver KUMAR R , THANGAVELUSAMY D . A Modified Nearest Level Modulation Scheme for a Symmetric Cascaded H-Bridge Inverter. GAZI UNIVERSITY JOURNAL OF SCIENCE. 2019; 32(2): 481-471.