Performance Analysis of a Half Bridge Cell Based Asymmetrical Multilevel Inverter Topology with Minimum Components

Title:Performance Analysis of a Half Bridge Cell Based Asymmetrical Multilevel Inverter Topology with Minimum Components

Volume: 13 Issue: 4

Author(s): Abeera D. Roy and Chandrahasan Umayal*

Affiliation:

• School of Electrical and Electronics Engineering, Vellore Institute of Technology, Chennai,India

Keywords: Cascaded H-bridge, THD, NLM, asymmetrical, half bridge, conduction losses.

Abstract:

Background: In Multilevel Inverters (MLI) as the number of level increases, there is a proportionate increase in the count of the semiconductor devices that are employed.

Methods: This paper deals with an asymmetrical cascaded H-bridge inverter topology with half bridge cells to produce seven level output voltage waveform. Nearest Level Control (NLM) technique is used to produce the switching pulses. The operating principle of the proposed MLI and its performance abilities is verified through MATLAB/Simulink and a prototype is developed to provide the experimental results.

Results: Total Harmonic Distortion (THD) is computed for proposed MLI for different types of loads in simulation environment as well as in the developed hardware prototype. Comparison between the proposed MLI and recent topologies demonstrates the advantageous features.

Conclusion: The simulation and hardware results confirm the suitability of the proposed seven level MLI as the total component count, and the requirement of DC sources reduces considerably.

Cite this article as:

Roy D. Abeera and Umayal Chandrahasan *, Performance Analysis of a Half Bridge Cell Based Asymmetrical Multilevel Inverter Topology with Minimum Components, Recent Advances in Electrical & Electronic Engineering 2020; 13 (4) . https://dx.doi.org/10.2174/2352096512666190417122807

DOI https://dx.doi.org/10.2174/2352096512666190417122807	Print ISSN 2352-0965
Publisher Name Bentham Science Publisher	Online ISSN 2352-0973