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Dr. Preetha P. K.

Vice Chairperson, Department of Electrical and Electronics Engineering, School of Engineering, Amritapuri | Professor, Department of Electrical and Electronics Engineering, School of Engineering, Amritapuri

Qualification: B. Tech., M.Tech., Ph.D
preethapk@am.amrita.edu
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Research Interest: Electric Vehicles -Traction drive, On-Board Integrated Charging, V2G and G2V Charging, Floating Charging Station, Smart Grids- FACTS and Power Quality, Power Flow Control, Energy Trading; Renewable Energy Systems- Grid Integration, Inertia Emulation Techniques.
Date of Joining: 27/07/2007
Nature of Association: Regular

Bio Publications Research Ph. D. Students Awards
Bio

Dr. Preetha P. K. is a Professor and Vice Chairperson of the Department of Electrical and Electronics Engineering at Amrita School of Engineering, Amritapuri, Amrita Vishwa Vidyapeetham. Her research focuses on power and energy systems, with particular emphasis on power quality, Flexible AC Transmission Systems (FACTS), electric vehicle technologies, power electronics, and renewable energy integration.

Her earlier research focused on zero sequence harmonics in distribution transformers, leading to the investigation of methods for recovering and utilizing power associated with circulating harmonics in delta-connected transformer windings. Her research interests have subsequently expanded to electric vehicle traction drives, on-board integrated battery charging, vehicle-to-grid (V2G) and grid-to-vehicle (G2V) technologies, and sustainable power solutions for marine transportation, including offshore floating charging stations.

Her current research also encompasses switched reluctance motor (SRM) traction drives, torque ripple minimization, bidirectional grid support, intelligent fault diagnosis and fault-tolerant control, smart microgrids, shipboard microgrids, peer-to-peer energy trading, renewable energy integration, and inertia emulation in power systems with high renewable energy penetration. She is also interested in adaptive sparse representation techniques for power quality signal storage and reconstruction, advanced power electronic converters, multilevel inverters, and intelligent control techniques.

Dr. Preetha received her B.Tech. in Electrical and Electronics Engineering and M.Tech. in Power Systems, both with distinction, from the Government College of Engineering, Thiruvananthapuram. She obtained her Ph.D. from Amrita Vishwa Vidyapeetham. Before joining Amrita in 2007, she served in teaching positions at Fr. Conceicao Rodrigues Institute of Technology, Navi Mumbai, and Kumaraguru College of Technology, Coimbatore.

Dr. Preetha is a member of the Board of Studies for the B.Tech. in Electrical and Electronics Engineering and M.Tech. in Power and Energy (Smart Grids and Electric Vehicles) programmes at Amrita Vishwa Vidyapeetham. She is also a member of the Board of Studies for the B.Tech. in Electrical Engineering programme at Fr. C. Rodrigues Institute of Technology, Navi Mumbai, affiliated with the University of Mumbai.

She has guided research scholars working in electric mobility, power electronics, power quality, smart grids, renewable energy integration, and advanced motor drives. Her research supervision has included scholars supported by Amrita Ph.D. scholarships, and European Union Erasmus Mundus mobility programmes. She has also been involved in international research collaborations.

Dr. Preetha serves as a reviewer for international research journals and has contributed as a technical committee member and reviewer for IEEE and other international conferences organized by Amrita and other academic institutions.

Publications

Journal Article

Year : 2026

Risk identification and ranking for effective risk management of offshore floating electric vessel charging stations

Cite this Research Publication : V. Sruthy, P.K. Preetha, Rodríguez-García Javier, Risk identification and ranking for effective risk management of offshore floating electric vessel charging stations, Ocean & Coastal Management, Elsevier BV, 2026, https://doi.org/10.1016/j.ocecoaman.2026.108346

Publisher : Elsevier BV

Year : 2026

Sizing analysis and economic feasibility evaluations of offshore floating electric vessel charging stations for sustainable development

Cite this Research Publication : Sruthy V., Preetha P.K., Javier Rodríguez-García, Sizing analysis and economic feasibility evaluations of offshore floating electric vessel charging stations for sustainable development, Applied Energy, Elsevier BV, 2026, https://doi.org/10.1016/j.apenergy.2026.127447

Publisher : Elsevier BV

Year : 2026

Investigation on Diverse Sparse Signal Decomposition Techniques for Power Signal Representation

Cite this Research Publication : Vivek Anjali, Preetha Parakkatu Kesava Panikkar, Investigation on Diverse Sparse Signal Decomposition Techniques for Power Signal Representation, Energies, MDPI AG, 2026, https://doi.org/10.3390/en19102399

Publisher : MDPI AG

Year : 2026

Modeling and Optimization of AI-Based Centralized Energy Management for a Community PV-Battery System Using PSO

Cite this Research Publication : Sree Lekshmi Reghunathan Pillai Sree Devi, Chinmaya Krishnan, Preetha Parakkat Kesava Panikkar, Jayesh Santhi Bhavan, Modeling and Optimization of AI-Based Centralized Energy Management for a Community PV-Battery System Using PSO, Energies, MDPI AG, 2026, https://doi.org/10.3390/en19020439

Publisher : MDPI AG

Year : 2026

Model-Based and Data-Driven Bispectral Index Prediction Under Combined Drug Infusion During General Anesthesia

Cite this Research Publication : Arya Shibu, M. Pravika, C. P. Pramod, P. K. Preetha, Model-Based and Data-Driven Bispectral Index Prediction Under Combined Drug Infusion During General Anesthesia, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 2026, https://doi.org/10.1109/access.2026.3702563

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Year : 2026

AI-Driven Smart Control Techniques for Multilevel Inverters in Modern Power Systems—A Comprehensive Review

Cite this Research Publication : Sree Chand Suresh Babu, Rekha P. Nair, Preetha Parakkat Kesava Panikkar, AI-Driven Smart Control Techniques for Multilevel Inverters in Modern Power Systems—A Comprehensive Review, Energies, MDPI AG, 2026, https://doi.org/10.3390/en19184294

Publisher : MDPI AG

Year : 2025

Revolutionizing the energy sector: exploring diversified blockchain platforms for a sustainable future

Cite this Research Publication : Athira Jayavarma, Preetha Parakkat Kesava Panikker, Manjula G. Nair, Revolutionizing the energy sector: exploring diversified blockchain platforms for a sustainable future, Frontiers in Blockchain, Frontiers Media SA, 2025, https://doi.org/10.3389/fbloc.2025.1544770

Publisher : Frontiers Media SA

Year : 2025

A Comprehensive Review of Torque and Speed Control Strategies for Switched Reluctance Motor Drives

Cite this Research Publication : Sreeram K, Preetha P K, Javier Rodríguez-García, Carlos Álvarez-Bel, A Comprehensive Review of Torque and Speed Control Strategies for Switched Reluctance Motor Drives, CES Transactions on Electrical Machines and Systems, Institute of Electrical and Electronics Engineers (IEEE), 2025, https://doi.org/10.30941/cestems.2025.00006

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Year : 2025

Advancing Sustainable Marine Transportation: Offshore Floating Electric Vessel Charging Stations

Cite this Research Publication : Sruthy V, Preetha P K, Advancing Sustainable Marine Transportation: Offshore Floating Electric Vessel Charging Stations, International Journal of Sustainable Energy Planning and Management, Aalborg University, 2025, https://doi.org/10.54337/ijsepm.8709

Publisher : Aalborg University

Year : 2024

Investigation of the Effect of Diverse Dictionaries and Sparse Decomposition Techniques for Power Quality Disturbances

Cite this Research Publication : Vivek Anjali, Preetha Parakkatu Kesava Panikker, Investigation of the Effect of Diverse Dictionaries and Sparse Decomposition Techniques for Power Quality Disturbances, Energies, MDPI AG, 2024, https://doi.org/10.3390/en17236152

Publisher : MDPI AG

Year : 2024

Inertial issues in renewable energy integrated systems and virtual inertia techniques

Cite this Research Publication : Reshma Mathew, Preetha Parakkat Kesava Panikkar., Inertial issues in renewable energy integrated systems and virtual inertia techniques, International Journal of Power Electronics and Drive Systems (IJPEDS),2024.

Year : 2024

Modified switching control of SRM drives for electric vehicles application with torque ripple reduction

Cite this Research Publication : Sreeram Krishnamoorthy, Preetha Parakkat Kesava Panikkar., Modified switching control of SRM drives for electric vehicles application with torque ripple reduction, International Journal of Power Electronics and Drive Systems (IJPEDS),2024

Year : 2023

A comprehensive review of different electric motors for electric vehicles application

Cite this Research Publication : Sreeram Krishnamoorthy, Preetha Parakkat Kesava Panikkar, A comprehensive review of different electric motors for electric vehicles application ,International Journal of Power Electronics and Drive Systems, 2023.

Year : 2023

Implementation and operational feasibility of an offshore floating charging station for sustainable marine transportation

Cite this Research Publication : Sruthy, V., Preetha, P.K. “Implementation and operational feasibility of an offshore floating charging station for sustainable marine transportation”. Environment Development Sustainability (2023).

Publisher : Springer

Year : 2023

A secure energy trading in a smart community by integrating Blockchain and machine learning approach

Cite this Research Publication : Jayavarma, A., Preetha, Nair, M.G., "A secure energy trading in a smart community by integrating Blockchain and machine learning approach",Smart Science., 2023

Year : 2020

An offshore floating charging station for electric ships: accessibility enhancement schemes for recharging

Cite this Research Publication : Sruthy V., Raj, B., and P. K. Preetha, “An offshore floating charging station for electric ships: accessibility enhancement schemes for recharging”, Ships and Offshore Structures, pp. 1-8, 2020.


Publisher : Ships and Offshore Structures, Taylor & Francis,

Year : 2016

Modified Distribution Transformer for Enhancing Power Quality in Distribution Systems

Cite this Research Publication : Preetha Pk, P.S. Chandramohanan Nair, Modified Distribution Transformer for Enhancing Power Quality in Distribution Systems, International Journal of Power Electronics and Drive Systems (IJPEDS),2016

Year : 2014

Drainage Power Recovery from Distribution Transformers

Cite this Research Publication :
P. K. Preetha and Nair, P. S. Chandra, “Drainage Power Recovery from Distribution Transformers”, Hydel Technical Journal of KSEB Engineer’s Association (KSEBEA), vol. 60, pp. 27-30, 2014.

Publisher : Hydel Technical Journal of KSEB Engineer’s Association (KSEBEA)

Conference Proceedings

Year : 2025

Intelligent Speed Regulation System Using CNN Based Traffic Sign Recognition with Integrated CAN Communication

Cite this Research Publication : Akash K, Lekshmi R Chandran, Preetha P K, Intelligent Speed Regulation System Using CNN Based Traffic Sign Recognition with Integrated CAN Communication, 2025 Emerging Technologies for Intelligent Systems (ETIS), IEEE, 2025, https://doi.org/10.1109/etis64005.2025.10961526

Publisher : IEEE

Year : 2025

Regenerative Braking System Analysis and its Impact on the Growth of Electric Vehicles

Cite this Research Publication : Akhil Mohan H, Asha C A, Preetha P K, Regenerative Braking System Analysis and its Impact on the Growth of Electric Vehicles, 2025 International Conference on Advancements in Power, Communication and Intelligent Systems (APCI), IEEE, 2025, https://doi.org/10.1109/apci65531.2025.11137044

Publisher : IEEE

Year : 2025

Virtual Modeling and Simulation of DC Motor Dynamics

Cite this Research Publication : Abhishek S S, Anand P S, Akshatha T S, Vignesh V S, Sreeram K, Preetha P K, Virtual Modeling and Simulation of DC Motor Dynamics, 2025 1st International Conference on Smart and Intelligent Systems (SISCON), IEEE, 2025, https://doi.org/10.1109/siscon66686.2025.11409190

Publisher : IEEE

Year : 2024

Harnessing Battery Energy Storage Systems as Fast Frequency Reserves for Sustainable Energy Stability

Cite this Research Publication : Reshma Mathew, Krishnaraj Surendran, Preetha P K, Harnessing Battery Energy Storage Systems as Fast Frequency Reserves for Sustainable Energy Stability, 2024 10th International Conference on Electrical Energy Systems (ICEES), IEEE, 2024, https://doi.org/10.1109/icees61253.2024.10776855

Publisher : IEEE

Year : 2024

Unlocking Democracy: A Blockchain Odyssey in E-Voting Systems

Cite this Research Publication : Immadi. N.M.S. Arya, Gali Adarsh Reddy, Tadepalli Yogendra Gangadhara Abhinav, Pittu Sai Praneeth, Athira Jayavarma, Preetha P K, Manjula G Nair, Unlocking Democracy: A Blockchain Odyssey in E-Voting Systems, 2024 4th Asian Conference on Innovation in Technology (ASIANCON), IEEE, 2024, https://doi.org/10.1109/asiancon62057.2024.10838111

Publisher : IEEE

Year : 2023

Development of GUI and Slot Booking System for Marine Vessel Charging

Cite this Research Publication : V Sruthy, Vaishnav S Chandran, M T Jaya Prakash, S K Mithun, D S Prithvi Syam, P K Preetha, Development of GUI and Slot Booking System for Marine Vessel Charging, 2023 7th International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), IEEE, 2023, https://doi.org/10.1109/iementech60402.2023.10423450

Publisher : IEEE

Year : 2023

Techno-economic analysis of electrically propelled marine vessels

Cite this Research Publication : V. Sruthy, K. Karthik and P. K. Preetha, “ Techno-economic analysis of electrically propelled marine vessels” presented in International Conference on Circuit, Power and Computing Technologies (ICCPCT), 2023

Year : 2022

Performance Analysis of Adaptive Integrated Power Conversion System for Electric Vehicles

Cite this Research Publication : P Arunkrishna, C. A. Asha, P. K. Preetha, Performance Analysis of Adaptive Integrated Power Conversion System for Electric Vehicles, 2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON)

Publisher : IEEE

Year : 2022

Simulation of High Efficiency Switched Reluctance Motor (SRM) Drive Control Scheme by Alternate Rotation Motor Firing

Cite this Research Publication : Sreeram K,Nandu Krishnakumar Pillai, Nithin Reddy Marri, Thushar Krishna Baiju, Preetha P K, Simulation of High Efficiency Switched Reluctance Motor (SRM) Drive Control Scheme by Alternate Rotation Motor Firing, 2022 Third International Conference on Intelligent Computing Instrumentation and Control Technologies (ICICICT)

Publisher : IEEE

Year : 2022

Smart Contract based Energy Trading-An overview

Cite this Research Publication : Athira Jayavarma S, Preetha P K, Manjula G Nair, Smart Contract based Energy Trading-An overview, Smart Contract based Energy Trading-An overview.

Publisher : IEEE

Year : 2022

Performance Analysis of Periodic Gate Signal Blocking on SRM Drives with Bang-Bang and Fuzzy Logic Control

Cite this Research Publication : Sreeram K, Nandu Krishnakumar Pillai, Nithin Reddy Marri, Thushar Krishna Baiju, Preetha P K, Performance Analysis of Periodic Gate Signal Blocking on SRM Drives with Bang-Bang and Fuzzy Logic Control, 2022 IEEE Conference on Interdisciplinary Approaches in Technology and Management for Social Innovation (IATMSI).

Publisher : IEEE

Year : 2022

A Review on Single-Phase Integrated Battery Chargers for Electric Vehicles

Cite this Research Publication : Sreeram, K., Surendran, S., Preetha, P.K, A Review on Single-Phase Integrated Battery Chargers for Electric Vehicles., 6th International Conference on Information and Communication Technology for Competitive Strategies, ICTCS, 2022

Year : 2022

Demand-Side Management and Compensation Using Electric Spring Considering Electric Vehicle as a Critical Load

Cite this Research Publication : Reshma Mathew, Rayis Mooppan & P. K Preetha., Demand-Side Management and Compensation Using Electric Spring Considering Electric Vehicle as a Critical Load, Intelligent Solutions for Smart Grids and Smart Cities

Year : 2022

Smart Grid Compatible Universal Electric Vehicle Charging Outlet to Boost India’s EV Penetration Rate

Cite this Research Publication : K. V. Suhaskrishnan, V. Sruthy and P. K. Preetha, "Smart Grid Compatible Universal Electric Vehicle Charging Outlet to Boost India’s EV Penetration Rate," 2022 IEEE 19th India Council International Conference (INDICON), Kochi, India, 2022.

Publisher : IEEE

Year : 2021

Waste Collection & Segregation using Computer Vision and Convolutional Neural Network for Vessels

Cite this Research Publication : Sruthy V, Akshaya, Anjana S, Sai Supriya Ponnaganti, V Gokul Pillai, Preetha P K, Waste Collection & Segregation using Computer Vision and Convolutional Neural Network for Vessels, 2021 International Conference on Computing, Communication, and Intelligent Systems (ICCCIS), IEEE, 2021, https://doi.org/10.1109/icccis51004.2021.9397092

Publisher : IEEE

Year : 2021

An Adaptive Integrated Power Conversion System for Traction and Charging of Electric Vehicles

Cite this Research Publication : P Arunkrishna, C. A. Asha, P. K. Preetha, An Adaptive Integrated Power Conversion System for Traction and Charging of Electric Vehicles, 2021 IEEE 2nd International Conference On Electrical Power and Energy Systems (ICEPES)

Publisher : IEEE

Year : 2021

Coupled Wireless Charging system for Electric Vehicles

Cite this Research Publication : A. G. Akhil, S. Harisankar, K. Jishnu, S. Sreenand, Vivek Vijay, C. A. Asha, P. K. Preetha, Coupled Wireless Charging system for Electric Vehicles, 2021 Third International Conference on Intelligent Communication Technologies and Virtual Mobile Networks (ICICV)

Publisher : IEEE

Year : 2021

Advanced Body Controlled Safety System for Connected and Autonomous Vehicle

Cite this Research Publication : Arjun Nambisan, Aswathi Chandran, Preetha P K, Manjula G Nair,m , Advanced Body Controlled Safety System for Connected and Autonomous Vehicle, 2021 Second International Conference on Electronics and Sustainable Communication Systems (ICESC).

Year : 2021

Solar-Powered Trash Collecting Boat with Solar Power Prediction using Machine Learning and Human-Computer Interface

Cite this Research Publication : Sruthy V, Akshaya; Anjana S, Sai Supriya Ponnaganti , V Gokul Pillai, Preetha P K, “Solar-powered trash collecting boat with solar power prediction using machine learning and human-computer interface” 6th International Conference on Communication and Electronics Systems (ICCES), 2021.

Publisher : IEEE

Year : 2021

Waste Collection & Segregation using Computer Vision and Convolutional Neural Network for Vessels

Cite this Research Publication : V. Sruthy., Akshaya, A. S., S. S. Ponnaganti, V. G. ,Preetha P K, “Waste collection & segregation using computer vision and convolutional neural network for vessels” International Conference on Computing, Communication, and Intelligent Systems (ICCCIS), 2021.

Publisher : IEEE

Year : 2021

Smart accident detection system

Cite this Research Publication : Kumar, M. L. S., Ashritha, U. S., Sumanth, Y., Hafeez, S., Preetha, P. K., & Chandran, A. (2021, August). Smart accident detection system. In 2021 Second International Conference on Electronics and Sustainable Communication Systems (ICESC) (pp. 1675-1679).

Year : 2020

Foldable Floating Solar Array for Electric Vessel

Cite this Research Publication : Mayank Tiwari, V Sruthy , P K Preetha, Foldable Floating Solar Array for Electric Vessel , 2020 Third International Conference on Smart Systems and Inventive Technology (ICSSIT)

Publisher : IEEE

Year : 2020

Modelling and performance analysis of hybrid electric vehicle

Cite this Research Publication : K Sreeram ,P K Preetha., Modelling and performance analysis of hybrid electric vehicle, International Conference on Recent Innovations in Engineering and Technology (ICRIET 2020)

Year : 2019

Electric Vehicle Scenario in India: Roadmap,Challenges and Opportunities

Cite this Research Publication : k Sreeram, P K Preetha, Prabaharan Poornachandran, Electric Vehicle Scenario in India: Roadmap,Challenges and Opportunities, 2019 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT).

Publisher : IEEE

Year : 2019

Optimal coil configuration for resonant coupled wireless powering of automobile position sensors

Cite this Research Publication : Anjali Vijayan, P.K. Preetha, S. Nithin, Optimal coil configuration for resonant coupled wireless powering of automobile position sensors, 2019 Innovations in Power and Advanced Computing Technologies (i-PACT).

Year : 2019

Solar Integrated Electric Spring for Hospital ICU

Cite this Research Publication : Abhinandh, B.G., Preetha, P.K., Asha, C.A., Solar Integrated Electric Spring for Hospital ICU, 2019 Innovations in Power and Advanced Computing Technologies.

Year : 2019

SPV based Floating Charging Station with Hybrid Energy Storage

Cite this Research Publication : Sruthy V., Raj, B., P. K. Preetha, and Ilango Karuppasamy, “SPV based Floating Charging Station with Hybrid Energy Storage”, 2019 IEEE International Conference on Intelligent Techniques in Control, Optimization and Signal Processing (INCOS). IEEE, Tamilnadu, India, 2019.

Publisher : 2019 IEEE International Conference on Intelligent Techniques in Control, Optimization and Signal Processing (INCOS)

Year : 2018

Power Conditioning System for a Vortex Turbine based Micro Hydro Power Plant

Cite this Research Publication : Ajay Nair Prabhatkar, Preetha P.K, Dinesh Kumar A.N, Power Conditioning System for a Vortex Turbine based Micro Hydro Power Plant, 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT)

Publisher : IEEE

Year : 2018

Performance Analysis of the Harmonic Rejection Capability of a TCLC Shunt Compensator

Cite this Research Publication : Emil Davis, P.K Preetha, Performance Analysis of the Harmonic Rejection Capability of a TCLC Shunt Compensator, 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT).

Publisher : IEEE

Year : 2018

DC Link Voltage Regulation of a Battery Integrated Solar Photo Voltaic System

Cite this Research Publication : Sibi Philip, P. K. Preetha, Vinod Kumar Gopal, DC Link Voltage Regulation of a Battery Integrated Solar Photo Voltaic System, 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT)

Publisher : IEEE

Year : 1997

Synchronous Voltage Source (SVS) for Dynamic Compensation of AC Transmission Systems

Cite this Research Publication : P. K. Preetha, “Synchronous Voltage Source (SVS) for Dynamic Compensation of AC Transmission Systems”, 2nd National Seminar on Modern Trends in Power Engg& Development conducted by KSEB & published subsequently in the proceedings of the Seminar. 1997.

Publisher : 2nd National Seminar on Modern Trends in Power Engg Development conducted by KSEB published subsequently in the proceedings of the Seminar

Conference Paper

Year : 2023

Peer-to-Peer Energy Trading Using Blockchain in Microgrid

Cite this Research Publication : A. Jayavarma, A. R. Menon, V. P., S. S. B., P. P. K. and M. G. Nair, "Peer-to-Peer Energy Trading Using Blockchain in Microgrid," 2023 5th International Conference on Energy, Power and Environment: Towards Flexible Green Energy Technologies (ICEPE), Shillong, India, 2023, pp. 1-6, doi: 10.1109/ICEPE57949.2023.10201643.

Publisher : IEEE

Year : 2020

Foldable Floating Solar Array for Electric Vessel

Cite this Research Publication : M. Tiwari, Sruthy V., and P. K. Preetha, “Foldable Floating Solar Array for Electric Vessel”, in 2020 Third International Conference on Smart Systems and Inventive Technology (ICSSIT), 2020.

Publisher : 2020 Third International Conference on Smart Systems and Inventive Technology (ICSSIT)

Year : 2018

A Hybrid Converter Based Topology For Solar Powered Shipboard Power Systems

Cite this Research Publication : Sruthy V., Anagha, A., and P. K. Preetha, “A Hybrid Converter Based Topology For Solar Powered Shipboard Power Systems”, in 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information Communication Technology (RTEICT), Bangalore, India, 2018.

Publisher : 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information Communication Technology (RTEICT),

Year : 2017

Waste Harmonic Power Recovery from Distribution Transformer and its Controlled Consumption with Battery Support

Cite this Research Publication : P. K. Preetha, Athul, M. V., Nair, P. S. C., and Dr. Manjula G. Nair, “Waste Harmonic Power Recovery from Distribution Transformer and its Controlled Consumption with Battery Support”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.

Publisher : 2017 International Conference on Technological Advancements in Power and Energy

Year : 2017

Single stage inverter integrated with battery for renewable energy harvesting

Cite this Research Publication :
K. S. Vishnu and P. K. Preetha, “Single stage inverter integrated with battery for renewable energy harvesting”, in 2017 Innovations in Power and Advanced Computing Technologies (i-PACT), Vellore, India, 2017.

Publisher : 2017 Innovations in Power and Advanced Computing Technologies (i-PACT)

Year : 2017

Reliability enhancement of an interconnected power system using fault current limiter

Cite this Research Publication :
N. Naufal, P. K. Preetha, and Sruthy, V., “Reliability enhancement of an interconnected power system using fault current limiter”, in 2017 Innovations in Power and Advanced Computing Technologies (i-PACT), Vellore, India, 2017

Publisher : 2017 Innovations in Power and Advanced Computing Technologies (i-PACT)

Year : 2017

Dynamic analysis of converter based fault current limiter of an AC/DC microgrid

Cite this Research Publication : N. Naufal, P. K. Preetha, and Sruthy, V., “Dynamic analysis of converter based fault current limiter of an AC/DC microgrid”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), Kollam, India, 2017.

Publisher : 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy)

Year : 2017

DC link voltage regulation in active filter using drainage power from distribution transformer

Cite this Research Publication : P. K. Preetha, S. Surya Babu, M. G. Nair, DC Link Voltage Regulation in Active Filter Using Drainage Power from Distribution Transformer, ICPEICES 2016 (published 2018), 2018, https://doi.org/10.1109/ICPEICES.2016.7853426

Publisher : 1st IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems,

Year : 2015

Comparison of PWM AND modified one cycle control for bridgeless zeta ac-dc converter

Cite this Research Publication : P. K. Preetha, “Comparison of PWM AND modified one cycle control for bridgeless zeta ac-dc converter”, in IEEE International Conference on Power and Advanced Control Engineering, Bangalore, 2015.

Publisher : IEEE International Conference on Power and Advanced Control Engineering

Year : 2015

Power Quality Improvement using FC-TCR with closed loop control

Cite this Research Publication : P. K. Preetha, “Power Quality Improvement using FC-TCR with closed loop control”, in International Conference on Recent Innovations in Engineering and Technology, Travancore College of Engineering, 2015.

Publisher : International Conference on Recent Innovations in Engineering and Technology,

Year : 2015

STATCOM based control scheme for power quality improvement

Cite this Research Publication : P. K. Preetha, “STATCOM based control scheme for power quality improvement”, in International Conference on Recent Innovations in Engineering and Technology, Travancore College of Engineering, 2015.

Publisher : International Conference on Recent Innovations in Engineering and Technology

Year : 2015

Power Quality Improvement using FC-TCR with closed loop control

Cite this Research Publication :
P. K. Preetha, “Power Quality Improvement using FC-TCR with closed loop control”, in International Conference on Recent Innovations in Engineering and Technology, Travancore College of Engineering, 2015.

Publisher : International Conference on Recent Innovations in Engineering and Technology

Year : 2015

Power Factor correction circuit with One Cycle Controlled bridgeless zeta converter for display monitors in hospitals

Cite this Research Publication :
P. K. Preetha, “Power Factor correction circuit with One Cycle Controlled bridgeless zeta converter for display monitors in hospitals”, in TENCON 2015 - 2015 IEEE Region 10 Conference, Holiday Inn, Sands Cotai Central Macao SAR, China, 2015

Publisher : TENCON 2015 - 2015 IEEE Region 10 Conference, Holiday Inn

Year : 2015

An equivalent circuit model for star-star-delta-utilized distribution transformer

Cite this Research Publication : P. K. Preetha, Jacob, S., and Nair, P. S. C., “An equivalent circuit model for star-star-delta-utilized distribution transformer”, in IEEE Region 10 Annual International Conference, Proceedings/TENCON, 2015, vol. 2015-January

Publisher : IEEE Region 10 Annual International Conference, Proceedings/TENCON, Institute of Electrical and Electronics Engineers Inc.,

Year : 2015

Electromagnetic Analysis of Transformer using SOLIDWORKS

Cite this Research Publication :
P. K. Preetha, “Electromagnetic Analysis of Transformer using SOLIDWORKS”, in IEEE International Conference on Technological Advancvements in Power & Energy, TAP Energy 2015, Amrita ViswaVidyapeetham, India, 2015.

Publisher : IEEE International Conference on Technological Advancvements in Power Energy,

Year : 2015

Comparison of PWM AND modified one cycle control for bridgeless zeta ac-dc converter

Cite this Research Publication : M. V. Athul, P. K. Preetha, P. S. C. Nair, Analysis of Star-Star-Delta-Utilized Transformer Under Balanced and Unbalanced Load Conditions, IEEE Industry Applications Society 51st Annual Meeting (IAS 2015), 2015, https://doi.org/10.1109/IAS.2015.7356947

Publisher : IEEE International Conference on Power and Advanced Control Engineering

Year : 2015

Analysis of star-star-delta_utilized transformer under balanced and unbalanced load conditions

Cite this Research Publication :
P. K. Preetha, “Analysis of star-star-delta_utilized transformer under balanced and unbalanced load conditions”, in IEEE IAS Conference 2015 at Annual meeting'15, Dallas, Texas, 2015.

Publisher : IEEE IAS Conference 2015 at Annual meeting'15

Year : 2014

Solar LED Street Light With Brightness Control

Cite this Research Publication : P. K. Preetha, Sana, A., Anusha, B., P, K., P.V, N. Azeez, Nair, D. Manjula G., and K.R., A., “Solar LED Street Light With Brightness Control”, in Second National Conference on Power Electronics in Sustainable Energy Development(NCPE2014), Amrita VishwaVidyapeetham, Coimbatore, 2014.

Publisher : Second National Conference on Power Electronics in Sustainable Energy Development(NCPE2014)

Year : 2014

Dependent source equivalent circuit model of Star-Star-Delta_Utilized distribution transformer

Cite this Research Publication : P. K. Preetha, “Dependent source equivalent circuit model of Star-Star-Delta_Utilized distribution transformer”, in IEEE TENCON, Bangkok, Thailand, 2014.

Publisher : IEEE TENCON

Year : 2013

Effects of drainage power recovery on power quality

Cite this Research Publication : P. K. Preetha, “Effects of drainage power recovery on power quality”, in National Conference on Technological Advancements in Power & Energy (TAP Energy 2013, 2013.

Publisher : National Conference on Technological Advancements in Power Energy (TAP Energy 2013

Year : 2011

A novel method for recovery of drainage power from distribution transformers

Cite this Research Publication : P. K. Preetha, “A novel method for recovery of drainage power from distribution transformers”, in IEEE PES International Conference on Innovative Smart Grid Technologies (ISGT 2011), 2011.

Publisher : IEEE PES International Conference on Innovative Smart Grid Technologies (ISGT 2011)

Research

Dr. Preetha’s research interests include Electric Vehicles, Power Electronics, Power Quality, Renewable Energy Integration, Smart Grids, and Advanced Motor Drives. Her work in Electric Vehicles focuses on switched reluctance motor (SRM) traction drives, on-board integrated battery charging, bidirectional grid support, and sustainable power solutions for marine transportation, including offshore floating charging stations. She also works on intelligent fault diagnosis and fault-tolerant control for reliable operation of offshore charging infrastructure. 

Her research in Power Electronics includes bidirectional quasi-Z-source (qZS) converters, multilevel inverters, advanced converter control techniques, and the application of artificial intelligence for intelligent power conversion and control. Her research interests in Power Quality include adaptive sparse representation techniques for power quality signal storage and reconstruction, harmonic analysis, and power quality improvement. 

Her work in Smart Grids and Renewable Energy Systems includes peer-to-peer energy trading using blockchain and dynamic pricing, inertia emulation in power systems with high renewable energy and electric vehicle penetration, and renewable energy integration. She is also interested in innovative motor technologies, including magnetic resonance coupling motors for electric vehicle applications, and energy recovery from distribution transformers. 

Research Projects

Electric Vehicles and E-Mobility

  • Offshore Floating Charging Station for Marine Transportation
  • Intelligent Fault Diagnosis and Fault-Tolerant Control for Reliable Operation of Offshore Floating Charging Infrastructure
  • Design and Development of Switched Reluctance Motor Traction Drive with Integrated Charging and Bidirectional Grid Support for Electric Vehicles
  • Investigation on a Sustainable Power Solution for E-Mobility in Marine Transportation
  • Magnetic Resonance Coupling Motor for Electric Vehicle Application

Power Electronics and Advanced Converter Technologies 

  • Design, Control and Performance Optimization of Bidirectional Quasi-Z-Source (qZS) DC–AC Converters for Residential Renewable Energy Systems
  • Multilevel Inverter with AI-Driven Smart Control Techniques
  • Fault Tolerant Convertors

Power Quality and Signal Processing

  • Power quality-based Energy Trading
  • Ero sequence harmonic power ecovery
  • Adaptive Sparse Representation Framework for Power Quality Signal Storage and Reconstruction
  • FACTS for compensation

Smart Grids and Renewable Energy Integration

  • Blockchain-Based Peer-to-Peer Energy Trading with Dynamic Pricing
  • Grid Stability issues with Renewable Integration
  • Investigation on Inertia Emulation Strategies for a Power System with High Renewable Energy and EV Penetration

Research Grants and International Collaboration

  • SEED Grant, Amrita Vishwa Vidyapeetham (2024): Awarded for the project titled “Development of an Onboard Integrated Switched Reluctance Motor (SRM) Traction Drive for Electric Vehicles (EVs).”
  • International Research Mobility, Erasmus+ KA107 Project (2021): Research scholar mobility under Project No. 2019-1-ES01-KA107-062073, funded by the European Commission.

Patent

  • Power Conversion System for Electric Vehicle – Published patent.

Research Talks Delivered

  • Keynote Address: “Powering the Future – Growing Challenges of Harmonics,” at the National Conference on Synergistic Advances in Engineering and Technology, SAMANWAYA ’26, College of Engineering Karunagappally, Kerala, 6–7 March 2026. 
  • Invited Talk: “Power Quality and Its Issues,” under TEQIP II, organized by the Department of Electrical and Electronics Engineering, College of Engineering Perumon, Kerala, 29 February 2016. 
  • Invited Talk: “Recent Advances in Power Electronics and Applications,” at a TEQIP II-sponsored Faculty Development Programme, College of Engineering Adoor, Kerala, 19 December 2016. 

Ph.D. Guidance

Dr. Preetha has guided two research scholars to the award of the Ph.D. degree and is currently guiding seven scholars in the areas of power electronics, electric vehicles, power quality, smart grids, renewable energy integration, and advanced motor drives.

Ph.D. Degrees Awarded: 2

Ongoing Ph.D. Scholars: 7

Research Scholars and Areas of Research

  • Ms. Archana Jayalal: Quasi-Z-Source Converters
  • Ms. Venma Prabhash: Intelligent Fault Diagnosis and Fault-Tolerant Control
  • Mr. Sreechand: Multilevel Inverters with Smart Control Techniques
  • Ms. Asha C. A.: Magnetic Resonance Coupling Motors
  • Ms. Reshma Mathew: Inertia Emulation Strategies
  • Ms. Athira Jayavarma: Peer-to-Peer Energy Trading
  • Mr. Vivek A.: Adaptive Sparse Representation Framework for Power Quality Signal Storage and Reconstruction (Thesis Submitted)
  • Dr. Sreeram K.: Design and Development of Switched Reluctance Motor Traction Drive with Integrated Charging and Bidirectional Grid Support for Electric Vehicles (Degree Awarded)
  • Dr. Sruthy V.: Investigation on a Sustainable Power Solution for E-Mobility in Marine Transportation (Degree Awarded)



Ph. D. Students

Ph.D. Guidance

Dr. Preetha has guided two research scholars to the award of the Ph.D. degree and is currently guiding seven scholars in the areas of power electronics, electric vehicles, power quality, smart grids, renewable energy integration, and advanced motor drives.

Ph.D. Degrees Awarded:2

Ongoing Ph.D. Scholars:7

Research Scholars and Areas of Research

  • Ms. Archana Jayalal: Quasi-Z-Source Converters
  • Ms. Venma Prabhash: Intelligent Fault Diagnosis and Fault-Tolerant Control
  • Mr. Sreechand: Multilevel Inverters with Smart Control Techniques
  • Ms. Asha C. A.: Magnetic Resonance Coupling Motors
  • Ms. Reshma Mathew: Inertia Emulation Strategies
  • Ms. Athira Jayavarma: Peer-to-Peer Energy Trading
  • Mr. Vivek A.: Adaptive Sparse Representation Framework for Power Quality Signal Storage and Reconstruction (Thesis Submitted)
  • Dr. Sreeram K.: Design and Development of Switched Reluctance Motor Traction Drive with Integrated Charging and Bidirectional Grid Support for Electric Vehicles (Degree Awarded)
  • Dr. Sruthy V.: Investigation on a Sustainable Power Solution for E-Mobility in Marine Transportation (Degree Awarded)
Awards

Achievements / Awards

  • Conferred with Certificate of Appreciation under Amrita Innovation and Research Award, AIRA 2024
  • Conferred with Certificate of Appreciation under Amrita Innovation and Research Award, AIRA 2023
  • Conferred with Certificate of Appreciation under Amrita Innovation and Research Award, AIRA 2021
  • Conferred with the Certificate of Appreciation, 2014-2015, Amrita Vishwa Vidyapeetham

Research Grants

  • SEED Grant from Amrita Vishwa Vidyapeetham for the project titled “Development of an onboard integrated Switched Reluctance Motor (SRM) traction drive for Electric Vehicles (EVs), 2024
  • International mobility under Erasmus+ KA 107 Project (2019-1-ES01-KA107-062073), funded by the European Commission, 2021 for research scholar

Patent

  • Power Conversion System for Electric Vehicle (Published)

Invited Talks

  • Keynote address “Powering the future – Growing challenges of Harmonics” at the National Conference on Synergistic Advances in Engineering and Technology – SAMANWAYA ’26, scheduled on the 6th and 7th of March 2026 at the College of Engineering Karunagappally
  • Orientation talk on Outcome based Education, Amrita School of Computing, Amritapuri, March 2025
  • Invited talk on “Power Quality & its Issues” under TEQIP II organised by the Dept. of Electrical & Electronics, College of Engineering, Perumon , 29th February 2016
  • Invited talk on “Recent Advances in Power Electronics and Applications” for TEQUIP II sponsored Faculty Development Programme held at College of Engineering Adoor, Keralam, 19th December 2016

International Visits

  • Manchester, U.K, December 3-5, 2011, IEEE PES International Conference on Innovative Smart Grid Technologies (ISGT 2011) 
  • Bangkok, Thailand, October 22-25, 2014, IEEE TENCON 2014
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