International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 15, No. 3, September 2024, pp. 1508~1516 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v15.i3.pp1508-1516  1508 Journal homepage: http://ijpeds.iaescore.com A new configuration of multilevel inverter to generate higher voltage level with lower components Premkumar Rajavel 1,2 , Vimala Juliet Asokan 2 1 Department of Electronics and Instrumentation Engineering, Sri Sairam Engineering college, Chennai, India 2 Department of Electronics and Instrumentation Engineering, SRM Institute of Science and Technology, Kattankulathur, India Article Info ABSTRACT Article history: Received Nov 28, 2023 Revised Jan 23, 2024 Accepted Feb 2, 2024 Nowadays, the demand for cleaner and higher quality electricity supply is increasing among various industries and individual consumers. When compared to conventional two-level inverters, multi-level inverters are becoming more and more common, as these inverters deliver high-quality power with fewer harmonics. Here a new multilevel inverter circuit designed with variable direct current (DC) voltage sources is proposed, this circuit requires limited circuit components, and is compared with the other topologies with the same voltage in the output. The proposed topology requires nine switches in order to generate a single-phase 13-level output voltage without connecting to a polarity-generating circuit. The output voltage level and performance parameters associated with the total harmonic distortion (THD) of the voltage level in the output generated by the proposed multilevel inverter or MLI are evaluated in a MATLAB environment. The final simulation results confirm the behavioral accuracy in the proposed topology while creating all the levels. Also, real-time work is done to verify the operation of the inverter and the results are showcased. Keywords: Cascaded multilevel inverter Multilevel inverter Power electronic switches Pulse width modulation Voltage control This is an open access article under the CC BY-SA license. Corresponding Author: Premkumar Rajavel Department of Electronics and Instrumentation Engineering, Sri Sairam Engineering college Chennai, Tamil Nadu, India Email: premkumar.rajavel@gmail.com 1. INTRODUCTION An electrical device that converts direct current (DC) voltage to alternating current (AC) voltage is termed an inverter. These inverters are classified into two types. They are current source inverters and voltage source inverters. It consists of switches like metal-oxide-semiconductor field-effect transistor (MOSFET), insulated-gate bipolar transistor (IGBT), supply chain risk management (SCRm), and so on. The inverter can be built to convert solar power input or to function as a backup of power source with batteries that are charged independently. If it's a component of a bigger circuit, like as power supply unit or UPS, the alternate configuration is employed. It is also used in various control drives of electrical machines. In this instance, the inverter is powered by rectified mains AC from the power supply unit (PSU), rectified mains AC from the UPS, and batteries when there is no power. There are different types of inverters which are mainly classified based on their output level and circuit configurations. The inverter produces excess voltage under no-load conditions or very light load conditions, it produces AC at a non-specific frequency. Some of the inverter components require more than one isolated DC supply. Multilevel inverters have advanced in order to address the drawbacks of traditional inverters. A multilevel inverter is an electronic device that may provide the required alternating voltage by connecting with a minimum DC source. A stepped ac voltage waveform with reduced harmonics can be generated by combining several different DC voltage source ranges. Multilevel inverters have piqued with the interest of