Research Publications

Indexed International Journal Articles

  1. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali, and Nihal Kularatna “Supercapacitor Assisted Hybrid PV System for Efficient Solar Energy Harnessing”, MDPI Electronics (Impact Factor: 2.397), vol. 10(19), pp. 2422, 2021.
  2. Piyumal, P.L.A.K., Ranaweera, A.L.A.K., Kalingamudali, S.R.D., and Kularatna, N. "Maximum Power Point Tracking of an Off-grid Photovoltaic System Consisting of a Series Connected Supercapacitor with a Step-down Converter" ECS Transactions, Volume 107, 2022.
  3. Jayasekara, L D P S, Gurusinghe, T N, Wijesooriya, H E, Seneviratne, J A , Ranaweera, A L A K , Jayathilaka, K M D C, Wijesundera, L B D R P and Kalingamudali, S R D, “Wireless Communication, Monitoring, and Control System to Overcome Drawbacks of Internet of Things (IoT) Using LoRa Technology”, ECS Transactions, Volume 107, 2022.

Book Chapters

  1. Piyumal, P.L.A.K., Ranaweera, A.L.A.K., Kalingamudali, S.R.D., and Kularatna, N. (2023). Supercapacitor-Assisted Converter Techniques for Implementing Highly Efficient and Self-sustained Off-grid Renewable Energy Systems. YSF Thematic Publication 2023, Chapter 13, Page 208 – 229, National Science and Technology Commission (NASTEC), Sri Lanka.

Publications

  1. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali and Nihal Kularatna, “Analysis of Impedance Matching Technique for Novel Supercapacitor Assisted PV Systems”, IEEE Xplore, pp. 1-6, IECON 2020 the 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, October 2020.
  2. D.P.S. Jayasekara, P.L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali, “Efficiency Optimization of Supercapacitor Assisted Low Dropout (SCALDO) Regulators”, IEEE Xplore, pp. 1-6, IEEE 8th R10 Humanitarian Technology Conference (R10-HTC), Malaysia, February 2021.
  3. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali and Nihal Kularatna, “Improving the Energy Storage of Standalone PV Systems while Enhancing the Charging Efficiency using Supercapacitors”, IEEE Xplore, pp. 486-490, Proceedings of the 20th IEEE International Conference on Industrial Technology, Melbourne, Australia, February 2019.
  4. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali and Nihal Kularatna, “Novel Approach for Harnessing Maximum Energy from PV Systems using Supercapacitors”, IEEE Xplore, pp. 1-6, Proceedings of the IEEE Region 10 Humanitarian Technology Conference, Colombo, December 2018.
  5. D.K. De Silva, P.L.A.K. Piyumal, A.L.A.K. Ranaweera and S.R.D. Kalingamudali, “Supercapacitor assisted wireless chargers for moving electric vehicles”, Proceedings of the 76th Annual Sessions of SLAAS, pp. 73, 2020.
  6. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali and N Kularatna, “Novel slow switching technique for efficient solar energy harnessing for off grid photovoltaic systems”, Proceedings of the 4th International Research Symposium on Pure and Applied Sciences, University of Kelaniya, pp. 101, October 2019.
  7. L.A.K. Piyumal, A.L.A.K. Ranaweera, S.R.D. Kalingamudali and N Kularatna, “Supercapacitor based novel approach for efficient solar energy harnessing”, Proceedings of the 3rd International Research Symposium on Pure and Applied Sciences, University of Kelaniya, pp. 103, October 2018.
  8. Rajapaksha, R.M.I.U., Perera, P.S.H., Nandasena, P.K.D.M.,Gunarathna,E.P.G.T.K., Pieris, T.P.D., Kanishka, G., Ranaweera , A.L.A.K.and Kalingamudali, S.R.D.(2018). "Design and Implementation of Smart Standalone Gas Fire Security System for Domestic Usage", 19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka. p65
  9. M. I. U. Rajapaksha et al., "Design of an auto disconnecting regulator and a safety switch to prevent domestic gas leakages", 2020 International Research Conference on Smart Computing and Systems Engineering (SCSE), 2020, pp. 57-61, doi: 10.1109/SCSE49731.2020.9312996.
  10. Ranaweera, I.Rajapaksha, K. Piyumal, and J. Seneviratne, “An Eco-friendly smart battery-less Wi-Fi-based environmental condition monitoring system for precision agriculture”, SPAST Abs, vol. 1, no. 01, Oct. 2021.
  11. H. E. Wijesooriya, J. A. Seneviratne, K. M. D. C. Jayathilaka and R. P. Wijesundera, "Use of cuprous oxide thin film semiconductors for dissolved oxygen sensing:A preliminary study", International Conference on Applied and Pure Sciences, 2021, Faculty of Science, University of Kelaniya, Sri Lanka
  12. Jayasekara, L D P S, Gurusinghe, T N, Wijesooriya, H E, Seneviratne, J A, Ranaweera, A L A K , Jayathilaka, K M D C, Wijesundera, L B D R P and Kalingamudali, S R D, “Wireless Communication, Monitoring, and Control System to Overcome Drawbacks of Internet of Things (IoT) Using LoRa Technology”, International Conference on Technologies for Smart Green Connected Society, Japan, November 2021.

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