Narmada Ranaweera

Ms. Narmada Ranaweera

Electrical and Electronics Engineering, University of Sri Jayewardenepura, Colombo, Western, Sri Lanka
orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
7 November 2025 in Engineering Proceedings
Verified
Conference Paper
Open access
PDF file
Nisala DamithNisala Damith
Nisala Damith
AKAruna Kulasinghe
Aruna Kulasinghe
TGTeshan Gunasekara
Teshan Gunasekara
Narmada RanaweeraNarmada Ranaweera
Narmada Ranaweera
Nipun Shantha KahatapitiyaNipun Shantha Kahatapitiya
Nipun Shantha Kahatapitiya
MDMadushanka Nishan Nishan Dharmaweera
Madushanka Nishan Nishan Dharmaweera
This study presents a real-time system for detecting sheath damage in multicore wire production, addressing the limitations of conventional high-voltage testing. After evaluating multiple sensing techniques, laser-diffused reflection emerged as the most reliable, non-intrusive, and effective for continuous monitoring. A calibrated system combining a laser source and photodetector was implemented and tested on a live production line, achieving 83.75% detection accuracy. The system maintained consistent performance across wire colors and insulation conditions. This advancement offers a safer, more efficient alternative for in-process quality control. Future work aims to enhance robustness and incorporate intelligent algorithms to further optimize detection accuracy.

12 December 2024
Verified
Conference Paper
Closed access
Narmada RanaweeraNarmada Ranaweera
Narmada Ranaweera
GDGiulio De Donato
Giulio De Donato
This paper presents the design and implementation of a speed-controlled Interior-Permanent Magnet Synchronous Motor (IPMSM) drive using an incremental position encoder. The control scheme is based on Field-Oriented Control (FOC), with the speed regulator modeled using the Maximum Torque Per Ampere (MTPA) technique utilizing the machine’s reluctance torque. A Vector-Tracking Observer (VTO) is designed for precise speed estimation based on rotor position. The dynamic performance of the drive is analyzed through experimental testing.