Dr Akhilesh Sharma

@nerist.ac.in

Assistant Professor Electrical Engineering Department
North Eastern Regional Institute of Science and Technology

Dr Akhilesh Sharma


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https://researchid.co/akhil_15

RESEARCH, TEACHING, or OTHER INTERESTS

Electrical and Electronic Engineering, Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology
18

Scopus Publications

Scopus Publications

  • Efficiency Optimization of Photovoltaic Cells Using Maximum Power Point Tracking Method
    Akhilesh Sharma, Chandan Ray, Angku Kago, Piyali Das, Vikas Pandey, Shashikant
    Lecture Notes in Networks and Systems, 2025
  • Study on Meta-heuristics techniques for shade dispersion to enhance GMPP of PV array systems under PSCs
    Rupendra Kumar Pachauri, Mohit Kumar, Sudhakar Babu Thanikanti, Neeraj Kumar Shukla, Piyush Kuchhal, Ahmad Faiz Minai, Akhilesh Sharma
    Sustainable Energy Technologies and Assessments, 2023
  • Direct Torque Control Based Modelling of Three-phase S3 Inverter for Induction Motor Control
    Akhilesh Sharma, Sarsing Gao
    Pedg 2023 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems, 2023
    With the increased conversion of solar energy into electricity, the role of design engineers has increased to develop sophisticated, and efficient inverters for converting DC energy from the solar cell. In the field of inverter technology, numerous topologies have been developed in recent times, starting from conventional topologies like cascaded multilevel inverters to advanced hybrid inverters. Each topology has its limitation in terms of the number of voltage sources, switching devices, and other electrical passive components. One of the latest topologies that require a minimum number of power electronic switching components and voltage sources is a single-phase S3 inverter. The topology eliminates the need for filters. A single-phase S3 inverter has been extended to a three-phase S3 inverter to which a three-phase induction motor is connected. The switching pulses of the inverter have been obtained through the direct torque control method. The simulated results of the direct torque control method of the induction motor are presented, thus describing the fruitfulness of this inverter topology.
  • Simulation of GA-Based Harmonics Elimination in CHMLI Using DTC for Dynamic Load
    Akhilesh Sharma, Sarsing Gao
    Springer Proceedings in Mathematics and Statistics, 2023
  • Performance Analysis of Wind Diesel Generation with Three-Phase Fault
    Akhilesh Sharma, Vikas Pandey, Shashikant, Ramendra Singh, Meenakshi Sharma
    Springer Proceedings in Mathematics and Statistics, 2023
  • Grasshopper Optimization Technique for PV Array Reconfiguration to Achieve Higher GMPP Under PSCs
    Rupendra Kumar Pachauri, Mohit Kumar, Ankur Kumar Gupta, Ahmad Faiz Minai, Akhilesh Sharma
    Lecture Notes in Civil Engineering, 2023
  • Fuzzy Logic and PI Based Closed-Loop Speed Control of a Separately Excited DC Motor Using DC-DC Converter
    Akhil Deo Gangwar, Akhilesh Sharma, Th. Vimal Prakash Singh, S. Gao
    2022 2nd Asian Conference on Innovation in Technology Asiancon 2022, 2022
    The speed of separately excited DC Motor speed may be controlled above and below the rated value using DC-DC Converter. The desired speed can be achieved by applying proper DC voltage to the armature of the DC motor. The beauty of chopper is that it may provide variable DC voltage to the motor. The variable DC source is possible by properly firing the controlled power semi-conductor after receiving signal from the controller. The output of the controller is used to generate triggering pulses for the DC-DC converter circuit. The controller could be a PI, fuzzy logic or any other controller. The fuzzy logic provides faster control with no delay. In this research paper, the mathematical modelling of separately excited DC Motor is done. The speed of the motor is measured. The PI controller and fuzzy logic controller have been designed to minimize the error. After the simulation is carried out it is observed that fuzzy controller performed better than PI controller. The simulated results are presented.
  • PV Module Reconfigurable Approach using SM for Power Loss Reduction under Detrimental Shadowing Conditions
    Stephen Oko Gyan Torto, Rupendra Kumar Pachauri, Ahmad Faiz Minai, Ambreen Siddiqui, Akhilesh Sharma
    2022 3rd International Conference for Emerging Technology Incet 2022, 2022
    The resultant curve of the solar photovoltaic (PV) array relies on the arrangement of the Photovoltaic array, distribution of shading, and level of illumination. Detrimental shadowing cases and its contrary effects on the productivity of the PV system have inspired people doing research in the field of solar energy to do research and present suitable techniques to reduce the resultant power loss (PL) due to considered situation. In this paper, series-parallel (SP), total-cross-tied (TCT) PV array models are investigated under non-uniform irradiation/shadow test cases. For extensive comparative study, the Symmetric Matrix (SM) puzzle is introduced to rearrange the traditional TCT arrangement. All the SPV array configurations are tested during detrimental shadowing cases depending on the investigation of the circuit. Different performance parameters such as, short-circuit current (ISC), Open-circuit voltage (VOC), power and voltage locations at global maximum power point (GMPP), PL, fill factor (FF), power gain (PG) and analysis of shading factor (SF) are estimated with the help of the MATLAB/Simulink study.
  • Game Theory based PV Array Reconfiguration Methodology to Enhance Shade Dispersion Factor under PSCs: Experimental Analysis
    Rupendra Kumar Pachauri, Vandana Jha, Akhilesh Sharma, Vikas Pandey, Shashikant
    2022 2nd International Conference on Emerging Frontiers in Electrical and Electronic Technologies Icefeet 2022, 2022
    Photovoltaic (PV) array performance is reduced by shading causes, which can be avoided using a variety of methods for changing the connections between PV modules. This paper suggests a method to reduce the impacts of partial shading conditions (PSCs) on solar PV arrays, through the traditional configurations like SP, TCT, and through game puzzle arrangements like Su-Do-Ku and Sky - scraper setups, to make a 9×9 size array. In this paper, an exploration into conventional electrical strategies, namely series-parallel (SP) and total-cross-tied (TCT), is compared. Furthermore, the suggested algorithm can be used to set up Photovoltaic panels to maximize power throughout non-uniform irradiation rates. The findings of study are evaluated on the basis of power loss (PL) and fill factor (FF). The responsibility of demonstrating the productive results of the envisaged PV array setup falls on careful monitoring. This paper is helpful for educationists and scholars who are looking for new ways to lessen the partial shading consequence on PV arrays in order to achieve higher global maximum power point (GMPP).
  • Modulation index effect on inverter based induction motor drive
    Akhilesh Sharma, Anandh N., Sarsing Gao
    International Journal of Power Electronics and Drive Systems, 2020
    Due to a substantial increase in the use of inverter for numerous electrical appliances starting from domestics to industrial drives, an inverter may be directly connected to the power grid system. The dependency on an inverter has been increased over the years. Hence, the proper and efficient design of the inverter will lead to higher efficiency. One of the major challenges is the generation of suitable gate pulses for power switching devices, which in turn depends on the modulation index. The selection of proper modulation index will help in the production of the rated voltage. If the modulation index is less, the duration of on-time pulses will be less and hence, the device's conduction time is also less, thereby the output voltage of the inverter is reduced. A reduced voltage, when applied to an induction motor will have lower speed and even its performance will be sluggish. The speed of the motor improves when it is operated in a closed-loop for the same modulation index. This research paper tries to bring out the effect of modulation index on speed control of an induction motor based on an inverter for both open as well as closed-loop operation. The simulated results indicate that the modulation index in the vicinity to unity will provide rated voltage for the smooth operation of the motor.
  • An improved zero-voltage zero-current transition boost converter employing l-c-s resonant network
    Anandh N, Akhilesh Sharma, Julius Fusic S, Ramesh H
    International Journal of Power Electronics and Drive Systems, 2020
  • Selective Harmonic Elimination for Cascaded H-bridge MLI using GA and NR-Method
    Akhilesh Sharma, Deepak Singh, Vikas Pandey, S Gao
    International Conference on Electrical and Electronics Engineering Ice3 2020, 2020
  • PWM technique for single phase asymmetrical hybrid multilevel inverter for non-linear and dynamic loads
    , Akhilesh Sharma, Vikas Pandey, and
    International Journal of Recent Technology and Engineering, 2019
  • Harmonic Elimination in Three Phase Cascaded Multilevel Inverter using Genetic Algorithm
    Akhilesh Sharma, Deepak Singh, Sarsing Gao
    1st IEEE International Conference on Sustainable Energy Technologies and Systems Icsets 2019, 2019
  • Analysis of Sinusoidal PWM and Space Vector PWM based diode clamped multilevel inverter
    Akhilesh Sharma, Deepak Singh, Pukhrambam Devachandra Singh, S. Gao
    2018 5th IEEE Uttar Pradesh Section International Conference on Electrical Electronics and Computer Engineering Upcon 2018, 2018
  • Selective harmonic elimination for cascaded three phase multilevel inverter
    Deepak Singh, Akhilesh Sharma, Pukhrambam Devachandra Singh, S. Gao
    2018 2nd IEEE International Conference on Power Electronics Intelligent Control and Energy Systems Icpeices 2018, 2018
  • PWM Based AC-DC-AC Converter for an Isolated Hydro Power Generation with Variable Turbine Input
    P. Devachandra Singh, Akhilesh Sharma, S. Gao
    2nd International Conference on Energy Power and Environment Towards Smart Technology Icepe 2018, 2018
  • Speed Control of Neural Network Based Energy Efficient DC Drive
    Krishanu Nath, Amlesh Kumar, Amarjit Roy, Akhilesh Sharma
    Proceedings 2015 2nd IEEE International Conference on Advances in Computing and Communication Engineering Icacce 2015, 2015