A Symmetrical Cross-Connected T-Type Multilevel Inverter With Reduce Device Count

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Published: Jun 27, 2023
DOI: https://doi.org/10.37936/ecti-eec.2023212.249828
Keywords:
Multilevel Inverter Total Harmonic Distortion Pulse Width Modulation Reduced Device Count CT-type Total Standing Voltage

Main Article Content

Vishal Rathore
an Assistant Professor at BITS Bhopal, MP, India.
Dhananjay Kumar
a Senior Technologist in Department of Industrial Research Design and Development (IRDD), Aartech Solonics Ltd., Mandideep, India.
Prateek Mundra
pursuing Ph.D. from Maulana Azad National Institute of Technology, Bhopal, India.

Abstract

This paper presents a symmetrical, cross-connected T-type (CT-type) multilevel inverter (MLI) configuration with reduced device count (RDC). It comprises eight power switches, two DC sources, and four capacitors with self-voltage balancing. The generalized topology is formed by two CT-type basic modules connected by two power switches. These topologies operate using DC sources and capacitors having the same or different voltage levels, which can be extended by cascading the modules to attain a higher voltage level suitable for high-power applications. Therefore, the proposed CT-Type MLI is a good choice for renewable energy applications that require a lower input voltage source magnitude to attain high voltage levels. This paper uses the Matlab/Simulink platform to simulate the proposed CT-type topology using the level-shifted pulse width modulation (LS-PWM) technique. Further, a laboratory prototype is developed to test and validate the feasibility and effectiveness of the proposed MLI. Finally, a comparative analysis of the number of DC sources, capacitors, power switches, drivers, and total standing voltage (TSV) is presented against similar recent topologies.

Article Details

How to Cite
Rathore, V., Kumar, D., & Mundra, P. (2023). A Symmetrical Cross-Connected T-Type Multilevel Inverter With Reduce Device Count. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 21(2), 249828 . https://doi.org/10.37936/ecti-eec.2023212.249828
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Vol. 21 No. 2 (2023): Regular Issue (June 2023)
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Author Biographies

Vishal Rathore, an Assistant Professor at BITS Bhopal, MP, India.

Vishal Rathore received his B.E. degree in Electrical and Electronics Engineering from Laxmi Narayan College of Technology (LNCT), Bhopal, India, in 2007, M.Tech. in Electrical Drives form MANIT Bhopal in 2012 and Ph.D. from NIT Jamshedpur, Jharkhand, India. Currently, he is working as an Assistant Professor at BITS Bhopal, MP, India. His fields of interest include Multilevel inverters based multiphase drives, Application of multiphase machine in electric vehicles, Real-time controllers for power electronics based drives systems, and usage of power electronics in transit systems.

Dhananjay Kumar, a Senior Technologist in Department of Industrial Research Design and Development (IRDD), Aartech Solonics Ltd., Mandideep, India.

Dhananjay Kumar received his BE degree from Lakshmi Narain College of Technology, Bhopal, Madhya Pradesh, India in 2014, the M.Tech (Electrical Drives) degree from Maulana Azad National Institute of Technology, Bhopal, India in 2017, and the Ph.D degree from Department of Electrical Engineering, Maulana Azad National Institute of Technology, Bhopal, India in 2022. Currently, he is working as a Senior Technologist in Department of Industrial Research Design and Development (IRDD), Aartech Solonics Ltd., Mandideep, India. His fields of interest are multilevel inverters, power electronics for renewable energy, and energy storage system.

Prateek Mundra, pursuing Ph.D. from Maulana Azad National Institute of Technology, Bhopal, India.

Prateek Mundra received his B.E. degree in Electrical and Electronics Engineering from Lakshmi Narain College of Technology (LNCT), Bhopal, India, in 2014. He received M.Tech. (Power System) from MANIT, Bhopal, India. Currently, he is pursuing Ph.D. from Maulana Azad National Institute of Technology, Bhopal, India. His fields of interest include Renewable energy economics, renewable energy forecasting, power system stability etc.

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