Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques Madisa V. G. Varaprasad, Ramakrishna S S Nuvvula, Polamarasetty P Kumar, Neyara Radwan, C. Dhanamjayulu, Mohammed Rafi Shaik, Baseem Khan Scientific Reports, 2024 Simulation and implementation of a single DC-link-based three-phase inverter are investigated in this article. The primary focus is on designing a single DC-link three-phase inverter for high power applications. Unlike conventional inverters that require 600 V to generate 400 V (RMS) at the output, the proposed system achieves this with only 330 V, facilitated by a 12-terminal 1:1 transformer. The system employs Proportional Integral (PI) and Neural Network (NN) controllers to optimize performance. Various Carrier-Based Pulse Width Modulation (CB-PWM) techniques, including Phase Disposition (PD), Phase Opposition Disposition (POD), and Alternative Phase Opposition Disposition (APOD), are implemented and evaluated based on Total Harmonics Distortion (THD) concerning the Modulation Index (MI) of the inverter. The proposed inverter achieves a THD reduction to 4.8%, demonstrating superior performance compared to recent studies. The system's performance is validated through extensive MATLAB/Simulink simulations and practical implementation using XILINX FPGA software, confirming the efficacy of the proposed design.
Preface Vijayakumar Gali, Luciane Neves Canha, Mariana Resener, Bibiana Ferraz, Madisa V.G. Varaprasad Advanced Technologies in Electric Vehicles Challenges and Future Research Developments, 2024
Design and analysis of PV fed high-voltage gain DC-DC converter using PI and NN controllers Madisa V.G. Varaprasad, N.S.S. Ramakrishna, Innocent Kamwa, M. Venkatesan, Dasari Manikanta Swamy, S.M. Muyeen, Sk. A. Shezan, Md. Fatin Ishraque Ain Shams Engineering Journal, 2023 The entire globe is now focused on generating power using solar photovoltaic (SPV) cells. The SPV is generating the DC power, by using power converters to satisfy the load requirement. In this article, a modified High-Voltage DC-DC converter was explained. The main intention of the modified converter is to decrease the reverse recovery currents and voltage stress across the switch, similarly, it generates high voltage at the converter output. The modified converter contains mainly-one diode, two capacitors, and Coupled Inductor (CI). When the converter switch comes under active state two capacitors are discharged in series, similarly when the converter switch under inactive state those two capacitors are charged in parallel through the coupled inductor (CI) energy so, to get a high voltage at the converter output side. To reuse the leakage-inductor (LI) energy of the CI with the help of a passive clamp circuit for reducing the voltage stress across the switch, similarly switch has less resistance so conduction losses also decreased. In this manner, the converter efficiency was improved and the diode recovery problem also solved. For the converter duty cycle controlling, Proportional-Integral (PI) and Neural Network (NN) controllers were used. The performance and analysis of the modified converter were described in detail with the help of both controllers. Here, 48 V is doubled to 400 V. By modifying the converter's parameters, its behavior is evaluated. In this converter, voltage spikes and reverse recovery currents should be minimal. The converter's switching pulse can be adjusted by PI or NN. The entire system was designed in MATLAB/ Simulink tool.
A Drift Voidance Perturb & Observe MPPT Algorithm in Photovoltaic Systems Madisa V G Varaprasad, B. Arundhati, D. S. R. S. L. Avanthika, P. Sri Vamsi, Ch. D V Prasad Mouli, K. Rohit Sai Kiran, M. Durga Prasad, G. RaviT Eja 2023 IEEE Renewable Energy and Sustainable E Mobility Conference Resem 2023, 2023
Performance investigation of multifunctional grid connected PV interleaved inverter with power quality enhancement V Gali, MVG Varaprasad, SK Gupta, M Gupta Energy Systems 16 (3), 1093-1115 , 2025 2025 Citations: 18
Author Correction: Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques MVG Varaprasad, RSS Nuvvula, PP Kumar, N Radwan, C Dhanamjayulu, ... Scientific Reports 14, 21901 , 2024 2024 Citations: 8
Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques MVG Varaprasad, RSS Nuvvula, PP Kumar, N Radwan, C Dhanamjayulu, ... Scientific Reports 14 (1), 18078 , 2024 2024 Citations: 16
SOC Prediction of Lithium Ion Battery Based on Machine Learning Algorithm D Avanthika, B Arundhati, MVG Varaprasad, MA Kumari Recent Advances in Science, Engineering & Technology, 432-438 , 2024 2024
Advanced Technologies in Electric Vehicles: Challenges and Future Research Developments V Gali, LN Canha, M Resener, B Ferraz, MVG Varaprasad Elsevier , 2024 2024 Citations: 2
Design and implementation of adaptive-network-based fuzzy inference system controlled grid electric vehicle charging station using solar photovoltaic battery and diesel generator N Ganesh, GVN Kumar, B Arundhati, MVG Varaprasad Advanced Technologies in Electric Vehicles, 437-454 , 2024 2024
Photovoltaic charger used to charge the battery for off-board electric vehicles with adaptive-network-based fuzzy inference system SH Kumar, GVN Kumar, B Arundhati, MVG Varaprasad Advanced Technologies in Electric Vehicles, 413-436 , 2024 2024 Citations: 1
Design of bidirectional converter for electric vehicles battery charger Y Shaik, GVN Kumar, B Arundhati, MVG Varaprasad Advanced Technologies in Electric Vehicles, 455-472 , 2024 2024
Battery thermal management system in electric vehicles employing thermoelectric cooling method GVN Kumar, B Arundhati, A Mishra, MVG Varaprasad, K Nandini Advanced Technologies in Electric Vehicles, 473-480 , 2024 2024 Citations: 1
Design and analysis of PV fed high-voltage gain DC-DC converter using PI and NN controllers MVG Varaprasad, NSS Ramakrishna, I Kamwa, M Venkatesan, ... Ain Shams Engineering Journal 14 (8), 102061 , 2023 2023 Citations: 25
A Drift Voidance Perturb & Observe MPPT Algorithm in Photovoltaic Systems MVG Varaprasad, B Arundhati, D Avanthika, PS Vamsi, CDVP Mouli, ... 2023 IEEE Renewable Energy and Sustainable E-Mobility Conference (RESEM), 1-6 , 2023 2023 Citations: 1
Comparison of Fly-back Converter and Reverse Fly-back Converter for PV Applications MVG Varaprasad, B Arundhati, D Avanthika, K Saritha, K Sujatha, ... 2023 IEEE Renewable Energy and Sustainable E-Mobility Conference (RESEM), 1-6 , 2023 2023
LFC technique of an interconnected hybrid grid system with the forecasting of wind power P Suresh Kumar, B Arundhati, Y Srinivasa Kishore Babu, ... Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 5
Comparison between incremental conductance MPPT of two-phase interleaved boost converter and boost converter using MATLAB simulink B Jyothi, S Vinnakoti, MVG Varaprasad, S Leela Tejaswini Kavya Sustainable Technology and Advanced Computing in Electrical Engineering … , 2022 2022 Citations: 1
A Novel Converter for Bidirectional Power Flow in Hybrid Electric Vehicle Systems Using ANN Controller CH Mohan Murali Krishna, RS Ravi Sankar, MVG Varaprasad, ... Sustainable Technology and Advanced Computing in Electrical Engineering … , 2022 2022
A Unique Three Phase Multi-level Inverter for Low and Medium Power Applications in Photo-Voltaic System VL Vasamsetti, MVG Varaprasad, S Yarnagula Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022
Performance investigation of cycloconverter fed high power AC drives B Jyothi, S Vinnakoti, MVG Varaprasad, B Arundhati, V Gali Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 1
Design and Implementation of an Unidirectional Isolated DC-DC Converter for Fuel Cell Applications PT Bankupalli, MVG Varaprasad, AH Chander Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 1
Comparison of Charging Techniques for Electric Vehicle Battery Charging AH Chander, MVG Varaprasad, PT Bankupalli Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022
Reduce Leakage Currents in Transformer less PV System Connected to Utility Grid with H-Bridge Inverter Topology B Jyothi, S Vinnakoti, MVG Varaprasad 2022 Second International Conference on Advances in Electrical, Computing … , 2022 2022
MOST CITED SCHOLAR PUBLICATIONS
Design and analysis of PV fed high-voltage gain DC-DC converter using PI and NN controllers MVG Varaprasad, NSS Ramakrishna, I Kamwa, M Venkatesan, ... Ain Shams Engineering Journal 14 (8), 102061 , 2023 2023 Citations: 25
Performance investigation of multifunctional grid connected PV interleaved inverter with power quality enhancement V Gali, MVG Varaprasad, SK Gupta, M Gupta Energy Systems 16 (3), 1093-1115 , 2025 2025 Citations: 18
Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques MVG Varaprasad, RSS Nuvvula, PP Kumar, N Radwan, C Dhanamjayulu, ... Scientific Reports 14 (1), 18078 , 2024 2024 Citations: 16
An efficient PV power optimizer with reduced EMI effects: Map-Based analysis and design technique S Maity, MVG Varaprasad IEEE Transactions on Energy Conversion 33 (2), 546-555 , 2017 2017 Citations: 15
Author Correction: Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques MVG Varaprasad, RSS Nuvvula, PP Kumar, N Radwan, C Dhanamjayulu, ... Scientific Reports 14, 21901 , 2024 2024 Citations: 8
Microcontroller-based current sensorless photovoltaic mpp tracker MVG Varaprasad, S Maity 2018 8th IEEE India International Conference on Power Electronics (IICPE), 1-6 , 2018 2018 Citations: 8
LFC technique of an interconnected hybrid grid system with the forecasting of wind power P Suresh Kumar, B Arundhati, Y Srinivasa Kishore Babu, ... Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 5
Design and implementation of a modified H-bridge multilevel inverter with reduced component count MVG Varaprasad, B Arundhati, HC Allamsetty, PT Bankupalli Machine Intelligence and Soft Computing: Proceedings of ICMISC 2020, 321-334 , 2021 2021 Citations: 5
Development of current sensorless photovoltaic mpp tracker MVG Varaprasad, S Maity 2019 International Conference on Computer, Electrical & Communication … , 2019 2019 Citations: 5
Novel topology for nine-level H-bridge multilevel inverter with optimum switches B Arundhati, MVG Varaprasad, V Gali Machine Intelligence and Soft Computing: Proceedings of ICMISC 2020, 419-433 , 2021 2021 Citations: 4
Solar powered brushless DC motor drive using zeta converter B Arundhati, S Murali, MVG Varaprasad International Journal of Pure and Applied Mathematics 114 (8), 81-91 , 2017 2017 Citations: 4
Grid synchronization of photovoltaic system with harmonics mitigation techniques for power quality improvement V Gali, A Sharma, SK Gupta, M Gupta, MVG Varaprasad Deregulated Electricity Structures and Smart Grids, 149-162 , 2022 2022 Citations: 3
Development of Observer-Based Photovoltaic MPP Tracker under Partial Shading Conditions MVG Varaprasad, S Maity 2018 8th IEEE India International Conference on Power Electronics (IICPE), 1-6 , 2018 2018 Citations: 3
Advanced Technologies in Electric Vehicles: Challenges and Future Research Developments V Gali, LN Canha, M Resener, B Ferraz, MVG Varaprasad Elsevier , 2024 2024 Citations: 2
Photovoltaic charger used to charge the battery for off-board electric vehicles with adaptive-network-based fuzzy inference system SH Kumar, GVN Kumar, B Arundhati, MVG Varaprasad Advanced Technologies in Electric Vehicles, 413-436 , 2024 2024 Citations: 1
Battery thermal management system in electric vehicles employing thermoelectric cooling method GVN Kumar, B Arundhati, A Mishra, MVG Varaprasad, K Nandini Advanced Technologies in Electric Vehicles, 473-480 , 2024 2024 Citations: 1
A Drift Voidance Perturb & Observe MPPT Algorithm in Photovoltaic Systems MVG Varaprasad, B Arundhati, D Avanthika, PS Vamsi, CDVP Mouli, ... 2023 IEEE Renewable Energy and Sustainable E-Mobility Conference (RESEM), 1-6 , 2023 2023 Citations: 1
Comparison between incremental conductance MPPT of two-phase interleaved boost converter and boost converter using MATLAB simulink B Jyothi, S Vinnakoti, MVG Varaprasad, S Leela Tejaswini Kavya Sustainable Technology and Advanced Computing in Electrical Engineering … , 2022 2022 Citations: 1
Performance investigation of cycloconverter fed high power AC drives B Jyothi, S Vinnakoti, MVG Varaprasad, B Arundhati, V Gali Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 1
Design and Implementation of an Unidirectional Isolated DC-DC Converter for Fuel Cell Applications PT Bankupalli, MVG Varaprasad, AH Chander Smart Energy and Advancement in Power Technologies: Select Proceedings of … , 2022 2022 Citations: 1