Mayank Kumar (S’13–M’17) was born in Jaunpur, India, in 1986. He received the B.Tech. degree in electronics and communication engineering from Dr. A.P.J. Abdul Kalam Technical University, Lucknow, India, in 2010, and the M.Tech. and Ph.D. degrees in electrical engineering from the Motilal Nehru National Institute of Technology, Allahabad, India, in 2013 and 2017, respectively. He is currently an Assistant Professor with the Department of Electrical Engineering, Adani Institute of Infrastructure Engineering (part of "Adani Institute of Education and Research AIER"), Ahmedabad, India. His research interests include the digital control of power electronic converters, FPGAs, switching techniques of dc–dc, dc–ac, and ac–ac converters, modeling and control of switched power electronics circuits, and so on. He is a regular
Reviewer of the IEEE Transcations of Industrial Electronics and IET Power Electronics.
EDUCATION
B.Tech., M.Tech., Ph.D. (Power Electronics)
58
Scopus Publications
Scopus Publications
Modeling of Multiport DC-DC Converter With Improved Fault-Tolerant Capability and Minimized Current Ripple Considering Circuit Parasitic Rishabh Bansal, Rushiv Bansal, Mayank Kumar International Journal of Circuit Theory and Applications, 2026 Multiport DC‐DC converters have the capability to provide the output power at different voltage levels simultaneously. In this paper, a novel boost‐side interleaved switched boost (BSISB) multiport DC‐DC converter is proposed. The boost‐side interleaving (BSI) reduces the input current ripple and improves fault‐tolerant capability at the load end, even after an open‐circuit transistor failure. The switched‐boost action topology uses time‐multiplexing control of boost and buck switches for independently regulated voltage of both the output ports using reduced semiconductor device count. The state‐space averaged (SSA) and small signal model (SSM) of the proposed converter is developed with circuit parasitic. The SSA and SSM are used for steady‐state gain analysis and the controller design for the converter, respectively. A prototype is developed in the lab to test the proposed converter under constant‐current constant‐voltage (CC‐CV) mode of charging of the battery and verify the derived analytical results.
High-Gain Fault-Tolerant Multiport Bidirectional DC–DC Converter With Time Multiplexing Control Abhishek Kumar Gupta, Mayank Kumar, Madhusudan Singh International Journal of Circuit Theory and Applications, 2026 In low‐power multiple‐voltage applications, single‐input, multiple‐output nonisolated converters are becoming popular as alternative dc‐dc topologies to increase efficiency and reduce the size and cost of the converter. This article presents a novel high‐gain fault‐tolerant multiport (HGFTM) dc‐dc converter for low‐ and medium‐voltage applications. The proposed converter is a combination of conventional boost and buck converter topologies with time multiplexing control. The switched boost action divides power into two ports using time multiplexing control. The noncascading structure of the converter provides high gain with improved efficiency. The proposed converter provides open circuit switch fault (OCSF) tolerant capability without any additional device requirement. This provides controlled output voltages for a wide range of applications. The main objective of this research is to attain robust and fault‐tolerant operations in multiport converter systems, ensuring continued power delivery even under component failure. A closed‐loop control technique is implemented to control the output voltages and assure the system's stability and accuracy under different load conditions. The physical implementation of the converter is tested in various scenarios to ensure its real‐time application. The experimental findings closely match the simulation results, showing the effectiveness of the proposed fault‐tolerant multiport dc‐dc converter.
Phase Current Balance Control of Fault-Tolerant Three-Phase Interleaved Buck Converter under Non-Ideal Circuit Conditions Saurabh Gupta, Mayank Kumar 2025 IEEE 12th Uttar Pradesh Section International Conference on Electrical Electronics and Computer Engineering Upcon 2025, 2025 This paper introduces phase current balance control of fault-tolerant three-phase interleaved buck (FTTPIB) converter. The interleaving structure of the converter provides the fault-tolerant characteristics, which helps to improve reliability and makes it operational under fault conditions. The controller design ensures that the inductor current in all three branches of the converter is balanced under circuit parasitic and open circuit switch fault conditions. Using interleaving structure of the FTTPIB converter i.e., equal phase shifting of the gate pulse, the converter reduces the output current ripple, which helps to provide better power quality under high current low voltage load applications such as electrolyzers. The structure also reduces stress on individual semiconductor devices. The phase current balance enables the equal current stress across each phase. The simulation results are captured using MATLAB/Simulink software to show the current balance characteristics of the converter under circuit parasitic and open circuit switch fault conditions.
Impact of Operating Duty on Performance of IBC under Different Operating Regions with Ripple Characterization Nishant Kumar, Mayank Kumar IETE Journal of Research, 2025 The characteristics of delivering a high and continuous output current with minimal current ripple make the interleaved buck converter (IBC) significant for battery charging and electrolyzer applications. This paper presents the characterization of current ripple behavior, losses due to turn-on and turn-off conditions of the switch, and total converter loss for the three-phase interleaved buck converter (TPIBC) under constant power, constant current, and fixed resistance load applications. Analytical relations are derived for the operation of TPIBC under both overlapping and non-overlapping duty conditions. The phase current characteristics are analyzed under continuous conduction mode (CCM) and discontinuous conduction mode (DCM) of operation. Furthermore, relations for current ripple behavior with respect to duty ratio are developed for the input current, output current, and inductor currents of TPIBC under both CCM and DCM operation. The presented analytical relations provide a solution for selecting the dc bus voltage with respect to the identified region of operation to achieve enhanced performance with respect to current ripple and converter loss. A laboratory prototype of TPIBC has been developed for the verification of the analytical results in real time.
Time-Multiplexed Fault-Tolerant Soft-Switched DC-DC Multiport Non-Isolated Converter Md. Modassir Masoom, Mayank Kumar, Narendra Kumar 5th IEEE International Conference on Sustainable Energy and Future Electric Transportation Sefet 2025, 2025 This paper presents a time-multiplexed fault-tolerant non-isolated soft-switched tri-port dc-dc converter (one input and two output ports). The proposed tri-port fault-tolerant dc-dc (TPFTDC) converter is developed for reliability and unremitting operation. The proposed converter is enriched with two output ports with step-up and step-down voltage gain capability, respectively. The interleaving nature of the circuit reduces the filter size and minimizes switching losses by adopting a resonant soft-switching. The time-multiplexing control for the buck operation is implemented using the switched boost action method to reduce the number of semiconductor devices. A detailed mode analysis of the proposed topology is presented. The proposed converter is simulated using MATLAB/Simulink software, and the results are verified.
Dual-Transformer-Based Zero-Voltage Switching of Dual Active Bridge Converter Anuj Kumar, Mayank Kumar, Madhusudan Singh 2025 IEEE 12th Uttar Pradesh Section International Conference on Electrical Electronics and Computer Engineering Upcon 2025, 2025 The dual active bridge (DAB) topology is increasingly used as an isolated and bidirectional dc-dc converter topology for medium to high voltage and medium to high power applications. A dual-transformer-based (DT-DAB) with active H-bridge with H6 structure (i.e., three-semiconductor switches in each leg) for the primary side and active H-bridge with H4 structure (i.e., two-semiconductor switches in each leg) for the secondary side is proposed in this article with bidirectional power transfer capability. The proposed dual-transformer-based zero-voltage switching of dual active bridge (DT-ZVSDAB) topology reduces current stress, better power distribution, and improved efficiency. A strategy of double frequency switching for auxiliary switches is presented. The proposed converter operated on different charging state threshold point as compared to conventional DAB. Simulation results with single-phase shift modulation technique are presented for characterization of the proposed converter at a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$200 ~\mathrm{V} / 100 ~\mathrm{V}$</tex> system under the buck mode of operation.
Improved Reliability and Performance Evaluation of Switched-Boost Multiport Converter Using Time-Multiplexing Control Rishabh Bansal, Rushiv Bansal, Mayank Kumar IEEE Canadian Journal of Electrical and Computer Engineering, 2025 In this article, a novel bidirectional boost-side interleaved switched boost (BBSISB) multiport converter is proposed. The boost-side interleaving (BSI) of the converter improves its performance in terms of input current ripple and reliability in medium-power applications. The BSI reduces the input current ripple (i.e., zero at 50% of duty ratio), and it also provides an open circuit (OC) switch fault-tolerance index (FTI) of 100% at the load end. The switched-boost action topology uses time multiplexing of boost and buck switches to produce regulated voltage at output ports, whereas the boost-side phase interleaving provides the paralleling of large input boost current with reduced current ripple. The bidirectional capability of the converter enables the power flow from the battery to the load end in the absence of an input supply. The performance analysis of the proposed converter with respect to switching loss, conduction loss, FTI, current ripple, and cost is performed and compared with similar converters. An experimental setup of the BBSISB multiport converter is developed in the laboratory with a constant-current, constant-voltage (CC-CV) mode of charging of the battery to verify the derived analytical results.
Robust Design and Controllability Analysis for Voltage Mode Controlled Multiport Converter With Structured Uncertainties Md. Modassir Masoom, Mayank Kumar, Narendra Kumar International Journal of Circuit Theory and Applications, 2025 This paper presents a robust voltage‐mode controlled (VMC) strategy and controllability analysis of a time‐multiplexed dc‐dc multiport (TMDCM) converter for non‐minimum phase (NMP) conditions. The instability mitigation is presented using a systematically designed PI controller using the stability boundary locus (SBL) method and Kharitonov's theorem, incorporating structured uncertainties and external disturbances. A robust stability region is defined within the K p and K i plane, and a section with optimal gain values to meet the desired performance criteria. The proposed approach uses voltage feedback from both the output ports of the TMDCM converter. Additionally, it inherently accounts for input and load variations, enhancing voltage regulation performance. A robust single‐loop voltage‐mode controller with structured uncertainties is analytically designed for a time‐multiplexed switched‐boost converter exhibiting a right‐half‐plane (RHP) zero. The switched‐boost mechanism, combined with time‐multiplexed control, enables a multiport converter output that provides bidirectional functionality for charging and discharging management of the battery energy storage system, along with other load output ports. The laboratory prototype is developed, and the real‐time performance of the converter is demonstrated for effective voltage regulation under varying source and load conditions, confirming controller robustness, non‐fragility, and improved disturbance rejection.
Design and Characterization of Solar PV Fed Fault Tolerant Multiport Converter With Reduced Current Ripple Md. Modassir Masoom, Mayank Kumar, Narendra Kumar IEEE Transactions on Industry Applications, 2025 This paper presents a solar photovoltaic (PV) integrated, non-isolated four-port (one input and three output ports) power electronic interface for three-wheeler (3-W) / four-wheeler (4-W) light electric vehicles (EVs). For continuous operation and reliability, the proposed multiport converter is developed with fault-tolerant capability and improved performance parameters. Unlike traditional converters, the proposed four-port fault-tolerant dc-dc (FPFTDC) converter has several input/output characteristics with multiple advantages. The interleaved nature of the circuit reduces battery charging current ripple and the size of solar PV side capacitor with increased current capability. The impact of reduced ripple current on battery charging/discharging and the performance are discussed. The phase-shifted technique for a two-phase interleaved boost converter with fault-tolerant capability and maximum power point (MPP) tracking is developed for maximum PV power harvesting and reliable operation. The switched boost action with time multiplexing control is used to develop multiport converter output with the bidirectional capability of the converter for charging/discharging control of the battery energy storage system with other load output ports. The prototype converter setup has been developed and tested for all the different operating modes.