A novel selective harmonic elimination for duple voltage boosting nine level inverter topology with fewer switching components for renewable energy applications

ABSTRACT

A multilevel inverter plays a predominant role in improving the performance as well as efficiency of the inverter. In this study, the proposed idea of the selective harmonic elimination (SHE) for Duple Voltage Boosting nine-level inverter topology with fewer switching components possesses two times better voltage boosting capability than the considered conventional models. The proposed inverter comprises 12 power semiconductor switches, two capacitors, and a single diode, which is connected to a single dc (direct current) source. The duple 9-level topology has been studied and evaluated under different multicarrier PWM (pulse width modulation) techniques in order to obtain lw THD (total harmonic distortion), and the results proves that the Level Control PWM Technique exhibits a better THD value of 9.35%. To improve the quality of the output waveform, the SHE has been designed to fix the predominant harmonics so that the lower order harmonics are minimized to generate a lower THD. A detailed discussion has been made with the results of the proposed inverter THD, which are then compared with other nine-level inverters MATLAB/SIMULINK that has been used to perform the simulation of the duple model, and the obtained simulation results have been validated for different modulation indices. The FPGA SPARTAN 6E controller tests the experimental prototype of the nine-level inverter, and their cost function is represented in dollars, which is compared with the other similar nine-level inverters.

KEYWORDS:

• PWM technique
• SHE PWM
• voltage boosting ability
• switched capacitor
• MLI
• THD

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Kannan Manickam

Kannan Manickam received his bachelor’s degree in Electrical and Electronics Engineering and master’s degree in Power Electronics and Drives during the year 2010 and 2012 from Anna University, Chennai. Currently, he is working toward the Ph.D. degree in Electrical Engineering at SRM Institute of Science and Technology, SRM University, Chennai, in the area of multilevel inverters for renewable energy applications. His areas of interests include modular multilevel converters, control strategy for power converters applicable to HVDC systems, power electronic converters for grid-connected systems, and DC-DC converters for renewable energy applications.

Saravanan Kaliyaperumal

Saravanan Kaliyaperumal received his bachelor’s degree in Electrical and Electronics Engineering from Madurai Kamaraj University during the year 1998 and master’s degree in Power Electronics and Drives from Anna University, Chennai, during the year 2001. Also, he completed the Ph.D. degree in Electrical Engineering from JNTU Kakinada, Andhra Pradesh, during the year 2018 in the area of Renewable Energy Systems. At present, he is working as an Associate Professor in the Department of Electrical and Electronics Engineering at SRM Institute of Science and Technology, SRM University, Chennai. He is having a teaching experience of more than 18 years in various institutions at various levels. He has published several research articles in various National and International Journals. His current research interests include renewable energy systems, hybrid electric vehicles, and multilevel inverters. He is a fellow member in FIE, a lifetime member in ISTE, and a lifetime member in SESI.

Suresh Muthusamy

Suresh Muthusamy received his bachelor’s degree in Electrical and Electronics Engineering and master’s degree in Power Electronics and Drives during the year 2009 and 2011 from Anna University, Chennai, and Anna University, Coimbatore, respectively. Currently, he is working toward the Ph.D. degree in Electrical Engineering at Anna University, Chennai, in the area of Hybrid Renewable Energy Systems. Since 2011, he has been working as an Assistant Professor Senior Grade in the Department of Electronics and Communication Engineering at Kongu Engineering College (Autonomous), Perundurai, Erode. He published more than 65 research articles in the reputed International Journal publications like Elsevier, Springer, Taylor & Francis, SAGE, ASME, etc. and indexed in SCI, SCIE, Scopus, and Web of Science with good impact factor and also presented many papers in National and International conferences. His areas of interests include hybrid renewable energy systems, power electronic converters, hybrid electric vehicles, and battery management systems.

Hitesh Panchal

Hitesh Panchal received his bachelor’s degree in Mechanical Engineering from Government Engineering College, Modasa, Gujarat, during the year 2004 and master’s degree in Internal Combustion Engines and Automobile from L.D. College of Engineering, Ahmedabad, Gujarat, during the year 2006. He then received the Ph.D degree in Mechanical Engineering in the area of Solar Thermal Engineering from K.S.V. University, Gandhinagar, Gujarat, in 2015. Dr. Panchal has published more than 150 research articles in reputed National and International Journal publications like Taylor and Francis, Springer, Elsevier, ASME, SAGE, etc. and also received 4500+ Google Scholar citations with an h-index of 43 and an i-10 index of 101. Dr.Panchal received many prestigious awards like Best Ph.D Thesis Award, Bharat Excellence Award, Young Scientist Award, Bright Researchers Award, and many more from various organizations. Dr. Panchal has completed 2 Research projects from GUJCOST, DST of 15 lakhs and currently working on one Research project from DTE. Dr. Panchal has filed 24 full patents and 4 industrial designs and among them 2 patents and 2 industrial designs have been granted. Recently, Dr. Panchal has been selected in “Top 2% Indian Scientist under the energy category” published by Stanford University.