U. SHAJITH ALI

@srmtrichy.edu.in

Associate Professor, EEE
SRM Institute of Science and Technology Tiruchirappalli

U. SHAJITH ALI


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https://researchid.co/shajithali

RESEARCH, TEACHING, or OTHER INTERESTS

Electrical and Electronic Engineering
19

Scopus Publications

486

Scholar Citations

10

Scholar h-index

12

Scholar i10-index

Scopus Publications

  • Development of an intelligent PV-powered conversion topology for next-generation domestic appliance integration
    P. Muthvel, A. Dheepanchakkravarthy, M. Suman, U. Shajith Ali
    Australian Journal of Electrical and Electronics Engineering, 2025
  • Performance of MIMO Supported Cognitive MC-IDMA System
    K.S. Vishvaksenan, R. Pandiyarajan, Shajith Ali U, K.V. Oppili Srinivasan
    8th International Conference on I Smac Iot in Social Mobile Analytics and Cloud I Smac 2024 Proceedings, 2024
    This research investigates the performance of Multiple-Input Multiple-Output (MIMO) aided coded Multi-Carrier Interleave Division Multiple Access (MC-IDMA) systems in cognitive spectrum sharing for downlink transmission. By combining Vertical-Bell Laboratories Layered Space-Time Architecture (V-BLAST) and Space-Time Block Code (STBC), the proposed system achieves higher capacity and data rate. This study explores the use of cognitive radio networks to access unused TV band spectrum and allocate it to mobile users. Multi-carrier modulation is employed to enhance resilience to channel dispersion. At the mobile station, channel matrix rearrangement and detection algorithms, such as Zero-Forcing and Minimum-Mean-Square-Error (MMSE), are implemented to extract information efficiently. An iterative decoder based on maximum-a-posteriori probability is utilized to mitigate interference from multiple users and AWGN channels. The research findings demonstrate that the joint transmit scheme with MMSE detection offers efficient data rate performance. The proposed Cognitive MIMO MC-IDMA architecture provides improved bit-error-rate results at lower Signal-to-Noise Ratio (SNR) levels while offering higher bandwidth. This research contributes to the advancement of cognitive radio technology and enhances the performance of wireless communication systems.
  • Quasi Z-source DC-DC Converter with Supercapacitor for Photovoltaic Application
    U. Shajith Ali, D. Saravanan, S. Shreya, M. R. Prahaladh
    2022 3rd International Conference for Emerging Technology Incet 2022, 2022
    This paper illustrates the behavior and analysis of charging and discharging of a supercapacitor connected to a photovoltaic system. Here, a quasi Z-source DC to DC power converter is used as the interfacing power circuit to condition the PV power. The mathematical and SIMULINK models of the supercapacitor, PV, and converter are presented. The SIMULINK model of the MPPT algorithm is also explained. Perturb and Observe technique is used to arrive the maximum power region. The simulation results are presented and examined to evidence that the maximum power is harvested. It also showed that the energy storage is achieved with supercapacitor.
  • Dual Input Quasi Z-Source DC to DC Converter
    U. Shajith Ali
    ICT Pep 2021 International Conference on Technology and Policy in Energy and Electric Power Emerging Energy Sustainability Smart Grid and Microgrid Technologies for Future Power System Proceedings, 2021
    The configuration of a dual input quasi Z-source DC-DC converter is purported in this paper. Two input voltage sources can be independently connected to the circuit. These sources can drive the load either individually or collectively. This converter is derived from impedance source converters, so the boosting operation is also achieved. So this converter is mostly suitable for renewable energy applications with source of photovoltaic array, fuel cell or wind turbine at one input and battery or other storage units at the other input. This converter boosts the input voltage with a high voltage gain with mitigated voltage stress across the devices and capacitors. The operation of the converter is presented along with four possible operating states. The concepts are illustrated through simulation results.
  • Vanadium redox flow battery energy storage system with y-source DC to DC converter for renewable energy applications
    Journal of Electrical and Electronics Engineering, 2020
  • Modelling and Design of Photovoltaic Fed Re-lift Luo Converter for Air Conditioner
    Applications of Modelling and Simulation, 2019
  • Impedance source converter for photovoltaic stand-alone system with vanadium redox flow battery storage
    U. Shajith Ali
    Materials Today Proceedings, 2018
  • Z-source DC-DC Converter with Fuzzy Logic MPPT Control for Photovoltaic Applications
    U. Shajith Ali
    Energy Procedia, 2016
    Z-source converters are recently premised DC-DC converters which can perform buck and boost operations, offer greater range of DC output voltage, high reliability and reduce in-rush and ripple currents. In photovoltaic (PV) applications, they provide better results compared to conventional DC-DC converters. These converters can be used as power conditioning units, so that the voltage boost and reception of maximum power from the PV array can be achieved. The maximum power point tracking (MPPT) is here achieved by controlling the duty cycle of the converter. A fuzzy logic control based MPPT is developed in this work to track the maximum power point of the PV array under variable solar irradiance and temperature conditions. MATLAB simulation and experimental results are given to establish the developed system.
  • Stateflow based incremental conductance MPPT of a photovoltaic system using Z - Source DC - DC converter
    U. Shajith Ali, D.V. Veeraraghavulu, M. Niveditha, N. Priyadharshini, P. Sandhiya
    2016 Biennial International Conference on Power and Energy Systems Towards Sustainable Energy Pestse 2016, 2016
    A new stateflow based maximum power point tracking technique is proposed for photovoltaic systems with Z-source DC-DC converter as the conditioning converter. The mathematical modeling of photovoltaic systems is presented. The new method of incremental conductance based MPPT technique is simulated with an interfacing Z-source dc to dc converter. This converter operates in bidirectional power flow mode, performs buck and boost functions and improves reliability as compared to other existing dc - dc converters. This paper studies the performance of photovoltaic systems under rapidly changing irradiance levels. The incremental conductance algorithm is selected to track the maximum power point. The simulations are presented and analyzed to prove that the proposed system receive the maximum power under varying irradiance levels.
  • Quasi Z-source inverter with improved incremental conductance MPPT for rapidly varying solar irradiation
    U. Shajith Ali, V. Kamaraj
    Proceedings of the International Conference on Power Electronics and Drive Systems, 2015
    The photovoltaic (PV) energy and its conversion into electrical energy has a raising importance in the renewable energy marketplace. It is essential to harvest the maximum power from the PV arrays since they have very low conversion efficiency. This process requires the power electronic converter as the power conditioning device. The quasi Z-source inverter is chosen as power conditioning device because of its capability of boosting and DC to AC conversion in single stage. An improved incremental conductance maximum power point tracking algorithm is developed with the aim to prevent the bewilderedness during rapidly changing solar irradiation. This algorithm controls the shoot-through duty cycle of the inverter to attain the maximum power point of the PV array. A novel modified space vector pulse width modulation technique with four shoot-through states is proposed for the inverter to control the inverter. Simulation and experimental results are provided to establish the performance of the proposed system. The comparison with the conventional algorithm is also presented.
  • Modified incremental conductance algorithm for Z-source inverter based photovoltaic power conditioning systems
    Journal of Electrical Systems, 2013
  • Bipolar multicarrier PWM techniques for cascaded quasi-Z-source multilevel inverter
    U. Shajith Ali, V. Kamaraj
    Proceedings of IEEE International Conference on Circuit Power and Computing Technologies Iccpct 2013, 2013
  • A novel carrier based pulse width modulation technique for quasi-z-source inverter with improved voltage gain
    U.Shajith Ali, G. Brindha, A.Haree Priya, M.N. Karthikeyan
    Proceedings of IEEE International Conference on Circuit Power and Computing Technologies Iccpct 2013, 2013
  • Z-source inverter with improved performance for photovoltaic applications
    U. Shajith Ali, V. Kamaraj
    2011 IEEE Symposium on Industrial Electronics and Applications Isiea 2011, 2011
  • Z-source inverter with a new space vector PWM algorithm for high voltage gain
    Arpn Journal of Engineering and Applied Sciences, 2011
  • A modified space vector PWM for bi-directional Z-source inverter
    U. Shajith Ali, V. Kamaraj
    2011 International Conference on Emerging Trends in Electrical and Computer Technology Icetect 2011, 2011
  • A novel space vector PWM for Z-source inverter
    U. Shajith Ali, V. Kamaraj
    2011 1st International Conference on Electrical Energy Systems Icees 2011, 2011
  • A novel modified space vector pulse width modulation technique for high performance Z-source inverter
    International Review of Electrical Engineering, 2011
  • Double carrier pulse width modulation control of z-source inverter
    European Journal of Scientific Research, 2011

RECENT SCHOLAR PUBLICATIONS

  • Nutritional and Lifestyle Interventions in the Management of Osteoporosis
    FA Khan, G Yasin, I Nayila, M Umer, S Ali
    International Journal of Multidisciplinary Conference Proceedings (IJMCP) 2 … , 2025
    2025
  • Development of an intelligent PV-powered conversion topology for next-generation domestic appliance integration
    P Muthvel, A Dheepanchakkravarthy, M Suman, U Shajith Ali
    Australian Journal of Electrical and Electronics Engineering, 1-11 , 2025
    2025
  • Real-Time American Sign Language Recognition Using Kinect Depth Sensor and Convolutional Neural Networks
    AD U. Shajith Ali, K.S. Vishvaksenan
    Journal of Electrical Systems 20 (3), 6282-6289 , 2024
    2024
  • Performance of MIMO Supported Cognitive MC-IDMA System
    KS Vishvaksenan, R Pandiyarajan, S Ali U, KVO Srinivasan
    2024 8th International Conference on I-SMAC (IoT in Social, Mobile … , 2024
    2024
  • Enhancing Stand-Alone Solar Power Systems with an Efficient High-Gain DC-DC Converter and Simplified MPPT Technique
    KSV U. Shajith Ali
    Journal of Electrical Systems 20 (3), 5305-5314 , 2024
    2024
  • Enhancing Stand-Alone Solar Power Systems with an Efficient High-Gain DC-DC Converter and Simplified MPPT Technique
    KSV U. Shajith Ali
    Journal of Electrical Systems 20 (3), 5305-5314 , 2024
    2024
  • Self-Supervised Rule Learning to Link Text Segments to Relational Elements of Structured Knowledge
    S Ikbal, U Sharma, H Karanam, S Neelam, R Luss, D Sreedhar, ...
    Findings of the Association for Computational Linguistics: EMNLP 2023, 1707-1718 , 2023
    2023
  • Design and development of ROSMC-based single-stage Z source inverter for power quality enhancement in hybrid electric vehicle applications
    A Sangari, MG Umamaheswari, B Lekshmi Sree
    IETE Journal of Research 69 (10), 7425-7445 , 2023
    2023
    Citations: 7
  • Selective AI and EA mechanisms on MPPT controllers for PV Z-source inverter: An overview
    NMB Sham, SA Zulkifli, R Jackson
    AIP Conference Proceedings 2564 (1), 040014 , 2023
    2023
  • Three-phase 3-level Z-source NPC inverter using modified 3D-space vector modulation
    R Palanisamy, K Vijayakumar
    International Journal of Ambient Energy 43 (1), 1907-1914 , 2022
    2022
    Citations: 3
  • Design and Analysis of Closed Loop PI Regulator for a Z-Source Inverter-Fuel Cell Applications
    N Viswanath, JS Naick
    2022
  • 29 Cystic fibrosis in West Virginia: Is higher body mass index target desirable?
    S Naqvi, S Ali, J Helsel, K Chapman
    Journal of Cystic Fibrosis 21, S18 , 2022
    2022
  • Quasi Z-source DC-DC Converter with Supercapacitor for Photovoltaic Application
    US Ali, D Saravanan, S Shreya, MR Prahaladh
    2022 3rd International Conference for Emerging Technology (INCET), 1-6 , 2022
    2022
    Citations: 1
  • Sustainable Energy and Technological Advancements
    G Panda, RT Naayagi, S Mishra
    2022
  • Surgical management of carpal tunnel syndrome with an open carpal tunnel release-our experience
    N Shajith, Y Subash
    International Journal of Orthopaedics 8 (2), 13-16 , 2022
    2022
  • investigation on multi-phase zsource inverter
    شراك, النعاس ‎
    Ziane Achour University of Djelfa , 2021
    2021
  • Rapid Detection of Airborne Inocula of Grapevine Mildews Using PCR and LAMP Assay
    J Shajith Basha, A Kamalakannan, S Saraswathy, I Johnson, ...
    IJPSS , 2021
    2021
  • Dual Input Quasi Z-Source DC to DC Converter
    US Ali
    2021 International Conference on Technology and Policy in Energy and … , 2021
    2021
    Citations: 3
  • An Improved Discontinuous Space Vector Modulation for a Three-Phase Z -Source Inverter With a Modified Reference
    M Khelifi, O Benzineb, EM Berkouk, A Behlouli, F Baatouche
    IEEE Journal of Emerging and Selected Topics in Power Electronics 10 (3 … , 2021
    2021
    Citations: 5
  • The waist-height ratio is a potential anthropometric index of insulin resistance: Observations based on oral glucose tolerance test in lean, normo-glycaemic, Asian Indian males …
    S Anoop, F Jebasingh, DM Philip, ME Kurian, V Mohan, G Finney, ...
    Clinical Epidemiology and Global Health 11, 100762 , 2021
    2021
    Citations: 7

MOST CITED SCHOLAR PUBLICATIONS

  • A novel space vector PWM for Z-source inverter
    US Ali, V Kamaraj
    2011 1st International Conference on Electrical Energy Systems, 82-85 , 2011
    2011
    Citations: 68
  • Z-source DC-DC converter with fuzzy logic MPPT control for photovoltaic applications
    US Ali
    Energy procedia 90, 163-170 , 2016
    2016
    Citations: 34
  • Sine carrier for fundamental fortification in three phase Z-source PWM inverters
    US Ali, V Kamaraj
    Modern Applied Science 4 (1), 73 , 2010
    2010
    Citations: 26
  • Double carrier pulse width modulation control of Z-source inverter
    US Ali, V Kamaraj
    European Journal of Scientific Research 49 (2), 168-176 , 2011
    2011
    Citations: 22
  • Stateflow based incremental conductance MPPT of a photovoltaic system using Z-source DC-DC converter
    US Ali, DV Veeraraghavulu, M Niveditha, N Priyadharshini, P Sandhiya
    2016 Biennial International Conference on Power and Energy Systems: Towards … , 2016
    2016
    Citations: 17
  • A detailed review on intelligent maximum power point tracking algorithms
    G Priyanka, SK Dash
    2020 2nd International Conference on Innovative Mechanisms for Industry … , 2020
    2020
    Citations: 16
  • Z-Source inverter with a new space vector PWM algorithm for high voltage gain
    US Ali, V Kamaraj
    ARPN J. Eng. Appl. Sci. 6 (6), 9-13 , 2011
    2011
    Citations: 16
  • A Novel Modified Space Vector Pulse Width Modulation Technique for High Performance Z-Source Inverter.
    US Ali, V Kamaraj
    International Review of Electrical Engineering 6 (2), 618 , 2011
    2011
    Citations: 14
  • High step-up high frequency push pull DC-DC converter using MPPT with DC motor load
    MR Prathibha, HS Sridhar
    2017 International Conference on Computation of Power, Energy Information … , 2017
    2017
    Citations: 12
  • A modified capacitor voltage control algorithm for suppressing the effect of measurement noise on grid-connected z-source inverters controllers
    AA Hakeem, A Elserougi, A El Zawawi, S Ahmed, AM Massoud
    IECON 2013-39th Annual Conference of the IEEE Industrial Electronics Society … , 2013
    2013
    Citations: 11
  • Performance analysis of multi-carrier Pwm based cascaded multilevel inverter
    S Malathy, US Ali
    Global Journal of Pure & Applied Science and Technology 2 (2), 32-40 , 2012
    2012
    Citations: 10
  • A modified space vector PWM for bi-directional Z-source inverter
    US Ali, V Kamaraj
    2011 International Conference on Emerging Trends in Electrical and Computer … , 2011
    2011
    Citations: 10
  • Impedance source converter for photovoltaic stand-alone system with vanadium redox flow battery storage
    US Ali
    Materials Today: Proceedings 5 (1), 241-247 , 2018
    2018
    Citations: 9
  • Bipolar multicarrier PWM techniques for cascaded quasi-Z-source multilevel inverter
    US Ali, V Kamaraj
    2013 International Conference on Circuits, Power and Computing Technologies … , 2013
    2013
    Citations: 9
  • A novel carrier based pulse width modulation technique for quasi-z-source inverter with improved voltage gain
    US Ali, G Brindha, AH Priya, MN Karthikeyan
    2013 International Conference on Circuits, Power and Computing Technologies … , 2013
    2013
    Citations: 8
  • A modified modulation scheme for capacitor voltage control of renewable energy-fed grid-connected z-source inverters
    AA Hakeem, A Elserougi, A El Zawawi, S Ahmed, AM Massoud
    IECON 2012-38th Annual Conference on IEEE Industrial Electronics Society … , 2012
    2012
    Citations: 8
  • Controller design for improved switched inductor (SL) Z-source inverter for photovoltiac applications
    MA Ismeil, A Francees, R Kennel
    Int. J. Adv. Renewable Energy Res 1 (6), 345-353 , 2012
    2012
    Citations: 8
  • Design and development of ROSMC-based single-stage Z source inverter for power quality enhancement in hybrid electric vehicle applications
    A Sangari, MG Umamaheswari, B Lekshmi Sree
    IETE Journal of Research 69 (10), 7425-7445 , 2023
    2023
    Citations: 7
  • The waist-height ratio is a potential anthropometric index of insulin resistance: Observations based on oral glucose tolerance test in lean, normo-glycaemic, Asian Indian males …
    S Anoop, F Jebasingh, DM Philip, ME Kurian, V Mohan, G Finney, ...
    Clinical Epidemiology and Global Health 11, 100762 , 2021
    2021
    Citations: 7
  • Switched capacitor-coupled inductor DC–DC converter for grid-connected PV system using LFCSO-based adaptive neuro-fuzzy inference system
    JKM Kumar, HA Rauf, R Umamaheswari
    Journal of circuits, systems and computers 29 (12), 2050201 , 2020
    2020
    Citations: 7