International Journal of Advanced Multidisciplinary Research and Studies
Volume 2, Issue 5, 2022
Cascaded 61-level Envelope Type Asymmetric Multilevel Inverter with Binary configuration
Author(s): Dr. Sanjeev Kumar L, Priyanka NM
Abstract:
This paper presents single phase 61 level E- Type MLI performance. A new E-Type module for asymmetrical MLI’s with reduced components, each of the module produces 13 levels with four unequal DC sources and 10 switches. The design of the proposed module makes some preferable features with a better quality than similar modules such as the low number of semiconductors and DC sources and low switching frequency. Also, this module is able to create a negative level without any additional circuit such as an H-bridge which causes reduction of voltage stress on switches. Cascade connection of the proposed structure leads to a modular topology with more levels and higher voltages. The control techniques play a very important role in reducing total harmonic distortion hence a review on different control technique presented Half height method and Equal phase control technique scheme is used to achieve high quality output voltage with lower harmonics. MATLAB simulations and practical results are presented to validate the proposed module good performance. Module output voltage satisfies harmonics standard without any filter in output.
Keywords: Asymmetric components, E-Type, Multilevel inverter, Power electronics, Half Height method, Equal phase method
Pages: 325-333
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