Karunadasa J. P.

BSc. Eng (Mor’wa), MSc (Manch), PhD (Manch), CEng, MIESL

Associate Professor
Department of Electrical Engineering
Faculty of Engineering
University of Moratuwa
Moratuwa 10400, Sri Lanka

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Email:karu@elect.mrt.ac.lk
Tel: +94-112640401
         +94-112650301 Ext:3401
Fax: +94-112650625

Current research areas

Postgraduate projects (taught course) supervised and graduated (as at April 2014)

  1. Development opportunities in power electronic applications in Sri Lankan industries – by Mr. BNN Abeysiri, 2012
  2. Leakage inductance calculation of torroidal transformers using finite element analysis – by Mr. NS Dodampegamage, 2012
  3. Possibility and proposal to redesign puttalum coal power station phase II, by Mr. TN Walpita
  4. Detection of partial discharges on the online hydrogenerator stator winding – by Mr. PAP Dharmapriya, 2012
  5. Analysis and filtering of power line noise interferences to data and voice signals in commercial building – by Mr. KPA Weerasinghe, 2012
  6. Investigation of torroidal inductors based on non-grain oriented silicon stee: Comparative study – by Mr. HK Ekanayake, 2012
  7. Tea factory fire risk management – by Mr. RH Abewickrama, 2012
  8. Development of a grid connected solar photovoltaic System – by Mr. KS Asanga, 2011
  9. Impact of internal and external factors in building energy consumption in Sri Lanka- by Mr. HRD Perera, 2011
  10. Proposal for providing for portable water requiremens of employee’s housing complex of Puttalam coal power project – by Mr. ABMT Abeykoon, 2011
  11. Development of hybrid power system controllerfor mobile telecom base stations – by Mr. MH Liyanage, 2011
  12. Development of an intelligent outage management system to improve the reliability of electricity distribution network- by Mr. CAA Gunawardhana, 2011
  13. Voltage stability analysis of a grid connected wind farm – by Mr. RD Nagodavithana, 2011
  14. Technical and financial requirements for implementation of remote metering- by Mr. LC Prasanna, 2011
  15. Design of a controllable resistor load bank – by Mr. PHKH Puhulwella, 2011
  16. Remote control humless fan controller unit – by Mr. MDAK Wijerathna, 2011
  17. Analyzing the maximum wind power penetration level around Kalpitiya peninsula – by Miss TR Kothalawala, 2010
  18. Study of different types of earthing in electrical installations – by Mr. JJ Jayasinghe, 2010
  19. Design of control philosophy between transformer AVR control and BSC bank power factor control –by Mr. DGS Kumara, 2010
  20. Fault diagnosis by vibration analysis of synchronous generators – by Mr. SH Ediriweeera, 2010
  21. Power electronic starter for wound rotor induction motors – by Mr. WHID Soysa, 2010
  22. A mechanism to reduce waste due to voltage dips in narrow fabric looms – by Mr. HKL Gamini, 2010
  23. An AC drive system to replace an existing DC drive system – by Mr. MRRT Niroshana, 2010
  24. Optimizing the use of breaker switched capacitors in CEB system – by Mr. D.D.U. Dompege, 2009
  25. Development of high performance automatic voltage stabilizer for telecommunication applications – by Mr. S.S.K. Thotagamuwage, 2009
  26. Active current shaping for better utility interface – by Mr. M.H.C. Perera, 2009
  27. Study of optimum location for capacitors installation in a 220/132/33 kV grid substation – by Ms. W.M.S. Deepika Wijesinghe, 2009
  28. Viability of fixed type power capacitors for loss reduction in low voltage (400 V) distribution networks of power utilities – by Mr. Chandana Warnakulasuriya, 2009
  29. Embedded generation impacts to medium voltage distribution network and mitigation techniques – by Mr. B.A.P.T.K. Perera, 2009
  30. Mitigation of short and long term voltage variations by distribution static compensator – by Mr. D.U. Jayasooriya, 2009
  31. Development of a speed stabilizer for rapid synchronization of mini-hydro generator – by Mr. D.G. Subasinghe, 2009
  32. Fault Localization using wavelet transforms in electric power networks – by Ms. J.V.U.P. Jayatunga, 2009
  33. Detection and diagnosis of stator inter turn short circuit fault of an induction machine – by Mr. J.A.D.S. Ranjan, 2007
  34. 110V universal battery charging panel using PIC microcontroller – by Mr. S.K. Vijithananda, 2006
  35. Design of low cost variable speed drive for air blower motor – by Mr. N.T. Athapattu, 2006
  36. Conductor losses due to non-linear loads – by Mr. M.L.D.D. Darshana, 2006
  37. Design and implement of intelligent variable frequency drive – by Ms. W.C.C. Sumathiratna, 2005
  38. GSM based remote monitoring – by Ms. J.K. Kanthi, 2005
  39. Selection of Induction Motors for petroleum product pumps and its economics – by Mr. P.P.C. Dissanayake, 2004
  40. Study of the influence of the manufacturing process on the magnetic behaviour in toroidal transformers – by Mr. H.P.I.P. Nandasena, 2004
  41. Improvement of an existing drive circuit for a permanent magnet DC-motor – by Mr. R.R.D.S. Siyambalapitiya, 2004
  42. Design of power electronic inverter for active power redistribution in an unbalanced three phase system – by Ms. M.T.K. De Silva, 2004
  43. Analysis of voltage surges in grid substation auxiliary supply – by Mr. J.D.K.G Hemaratne, 2004
  44. Condition Monitoring for Preventive maintenance of large induction motors – by Mr. W.K.L Prasad, 2004
  45. Investigation of parameters of a stand-alone power generating system, using an induction machine in single-phase generator mode - by Ms. N.G.D. Wijesiriwardana, 2003
  46. Detection of branch failures in the rotating rectifier of a brushless excitation system – by Mr. J.B.A. Nishantha, 2001

Postgraduate researches Degrees supervised and graduated (as at April 2014)

  1. Parameter optimization of multi wall carbon nano tube  production (MWCNT) using Sri Lankan graphite electric arc discharge method, MPhil Degree by Mr. RMSJ Gunasekera, completed in 2012 (Co-supervisors: Prof. AAP De Alwis, Dr. Lilantha Samaranayake)
  2. Remote Meter Reading over Power Distribution Lines,  MPhil Degree by Ms. K. Gamage, completed in 2002. (Co-supervisor: Prof Dileeka Dias and Dr. A. Ranaweera)

Undergraduate projects supervised (as at April 2014)

  1. Active harmonic current filter for single phase applications, 2013
  2. Intelligent smart power strip for household equipments, 2012
  3. Design and construction of a computer controlled 4-quadrant dc servo drive, 2011
  4. Harmonic current compensator, 2010
  5. Synchronizing and protection relay for distributed generators, 2010
  6. High performance DC power supply using resonant mode switching, 2009
  7. Scaled down model of high pulse thyristor converter for HVDC applications, 2009
  8. Flexible fast switching block for rapid prototyping of power converters, 2009
  9. Third harmonic power filter for domestic AC supply, 2009
  10. Design and implementation of 36-pulse voltage source converter, 2009
  11. Electronically controlled circuit breaker, 2008
  12. Design of automatic voltage regulator and frequency governor for a synchronous generator, 2008
  13. Design and construction of a 5 kW IGBT inverter with full functionality, 2007
  14. Active current harmonic filter, 2007
  15. High performance uninterruptible power supply, 2006
  16. Multi purpose odor detector, 2006
  17. High performance fan regulator, 2006
  18. Low cost variable speed drive, 2006
  19. Designing and manufacturing of low cost high efficiency automatic water heating system for commercial applications, 2005
  20. Software controlled multimode three phase inverter, 2005
  21. Power system protection study for a wind power plant, 2003
  22. Multipurpose waveform analyzer, 2003
  23. Implementation of a Switch mode power supply, 2003
  24. Substation control and monitoring system, 2002
  25. Three-phase pre-paid digital energy meter, 2002
  26. Power line based intercom, 2002
  27. Computer controlled DC motor drive, 2002
  28. Software controlled multimode single phase inverter, 2002
  29. Development of mechanical and electrical forms of rotating magnetic field for exhibition purposes, 2001
  30. Conversion of a DC motor for servo applications, 2001
  31. Power line carrier communication system, 2001
  32. PC based speed controlling of a DC motor, 2000
  33. Switch mode variable DC power supply with output voltage regulation, 2000
  34. IGBT inverter for three phase AC induction motor control, 1999
  35. Simulation of DC-DC converters, 1998
  36. Design of a single phase 12V/230V sinusoidal inverter, 1998

Books authored/co-authored

  1. Introduction to Electrical Machines -TED 1302-Block 01& Block 02, Open University Text Book (152 pages)
    (Authored Units 1 to7 out of 1 to 9)
  2. AC Rotation Machines -TED 1302-Block 03, Open University Text Book (105 pages) (Authored Units 10 to 17 out of 10 to 19)
  3. DC Machines- TED 1302-Block 04, Open University Text Book (65 pages)
    (Authored all Units 20 to 27)
  4. Classification and selection of electrical machines- TED 1302-Block 05, Open University Text Book (56 pages)
    (Authored Units 28A, 28C and 31 out of 28 to 31)
  5. Torque ripple minimization of a brushless DC motor, MSc Thesis, UMIST (UK), 1989
  6. Analysis and enhanced control of a brushless DC motor, PhD Thesis, UMIST (UK), 1991

Research publications

  1. Karunadasa J.P., Rathnayake T.S., Rukshan K.T., Rupasinghe R.A.T.J.K., Ruwanthika R.M.M., “Design and Simulation of Single Phase Active Current Harmonic Filter”, International Conference on Circuits, Power and Computing Technologies(ICCPCT), India, April 2014, pp978 - 983
  2. Karunadasa J.P., Jayasinghe R., Edirisinghe D.S.P., Fernando S.K.A., Fonseka P.I.V., Fonseka W.A.U.C.M., “Design and Construction of an Intelligent Power Socket to Reduce the Energy Wastage due to Standby Power”, IET-YP Sri Lanka Conference, Sri Lanka, June 2013, pp 45 - 48
  3. Karunadasa J.P., Kothalawala T.R.,”Analyzing the maximum wind power penetration level around Kalpitiya peninsula”, National Engineering Conference 2013, 19th ERU Symposium, Faculty of Engineering, University of Moratuwa, 2013, pp16 - 20
  4. Karunadasa J.P., Subasinghe D.G., “Development of a Speed Stabilizer for Rapid Synchronization of Mini-Hydro Generator”, Journal of Engineers, IESL, Sri Lanka, April 2010.
  5. Thotagamuwage S.S.K., Karunadasa J.P., “Development of High Performance Automation Voltage Stabilizer for Telecommunication Applications”, Journal of Engineers, IESL, Sri Lanka, Oct. 2010
  6. Attanayaka T.L., Bandara P.M., Bambarawana I.S., Bonukobhan N., Karunadasa J.P., “Harmonic Current Compensator”, Proceedings of the 16th Annual ERU Symposium, University of Moratuwa, Sri Lanka, Nov. 2010, pp 151-153
  7. Karunaratne P.U., Karunaratne R., Jayawickrama R., Lakmal S., Jayawardana A., Karunadasa J.P., Wijayapala A., “Synchronizing and Protection Relay for Distributed Generators”, Proceedings of the 16th Annual ERU Symposium, University of Moratuwa, Sri Lanka, Nov. 2010, pp 141-143
  8. Soyza W.H.I.D., Karunadasa J.P., “Power electronic starter for wound rotor induction motors”, 15th ERU Symposium, 2009, pp 9-10
  9. Perera L.B., Karunadasa J.P., Perera B.M.D., Perera K.P.S.D., Silva P.A.G.S. de,. Jayarathne M.C, “High pulse thyristor converter for HVDC Applications”, 15th ERU Symposium, 2009, pp 11-13
  10. Perera L.B., Karunadasa J.P., Chathuranga K.A.P., Premathilaka D.M.K.M., Ratnayake I.N.W., Senarathne K.N., “High pulse voltage source inverter for standalone renewable energy systems”, 15th ERU Symposium, 2009, pp 14-15
  11. Karunadasa J.P., Perera L.B., Perera B.M.D., Perera K.P.S.D., Silva P.A.G.S. De. Jayarathne M.C., “Multi level current re-injection current source thyristor converter for HVDC applications”, Proceedings, 16th annual conference, IET Sri Lanka network, Sri Lanka, 2009
  12. Karunadasa J.P., Perera B.A.P.T.K., “ Embedded generation impacts to medium voltage distribution network and mitigation techniques”, Proceedings, 16th annual conference, IET Sri Lanka network, Sri Lanka, 2009
  13. Karunadasa J.P., Warnakulasuriya Chandana, “Use of low voltage fixed power capacitors for loss reduction in power distribution networks”, Annual Transactions of Institution of Engineers, Sri Lanka, 2009, pp 17-26
  14. Jayatunga J.V.U.P., Silva P.S.N. De, Karunadasa J.P., “Fault localization using Wavelet Transforms in 132 kV transmission lines”, Journal of the Institution of Engineers, Sri Lanka, Volume 42, No. 04, October 2009, pp 95-104
  15. Karunadasa J.P., Perera L.B., Perera B.M.D., Perera K.P.S.D., Silva P.A.G.S. De,. Jayarathne M.C, “High pulse thyristor converter for HVDC applications”, Proceedings IET (YMS) Annual Technical Conference, 2009, Sri Lanka, pp 56-59
  16. Abeyratne M.G.A.P., Welihinda S.M., Udawatta Lanka, Karunadasa J.P., “Swing leg kinematics for the bipedal walking robot”, 15th ERU Symposium, 2009, pp 99-100
  17. Hewapathirana N.D., Uddawatta L., Karunadasa J.P., Nanayakkara T, `` Analysis on Four Legged Multipurpose Rope Climbing Robot” Proc. of the Fourth International Conference on Industrial and Information Systems (ICIIS), Kandy, Sri Lanka, 2009, (Published in IEEE Xplore).
  18. Karunadasa J.P., Edirisinghe A.J., Hasthanayake L.S., Ranawaka A.S., Shantha G.D and Suranjith A.L.D, “Electronically controlled circuit breaker”, 14th ERU Symposium, 2008, pp 82-83
  19. Karunadasa J.P., Kumara G.R.M.E., Paranietharan A., Vishnukanth S. and Gamachchige M.S.W., “Design of automatic voltage regulator and frequency governor for synchronous generator”, 14th ERU Symposium, 2008, pp 94-95
  20. Karunadasa J.P., Edirisinghe A.J., Hasthanayake L.S., Ranawaka A.S., Shantha G.D.I., Suranjith A.L.D., “Electronically controlled circuit breaker”, Annual technical conference, IET-YMS, Sri Lanka, 2008, pp 129-133
  21. Karunadasa J.P., Kumara G.R.M.E., Paranietharan A., Vishnukanth S., Gamachchige M.S.W., “Design of automatic voltage regulator and frequency governor for a synchronous generator”, Annual technical conference, IET-YMS, Sri Lanka, 2008, pp 121-124
  22. Meegahapola Lasantha, Karunadasa J.P., Sandsiri Kasun, Tharanga Damith, Jayasekara Dammika, ”Fuzzy Logic and Artificial Neural Network Approaches in Odor Detection”, IEEE proceedings of ICIA 2006, Colombo, Sri Lanka, pp 92-97
  23. Amarasinghe N. D., Peiris R. L., Silva E. L. De, Kumara G. K. A , Kumarawadu S., Karunadasa J.P., “Practical Design Considerations of a Low Cost Variable Speed Drive”, IEEE proceedings of ICIA 2006, Colombo, Sri Lanka, pp 355-360
  24. Gamage K., Ranaweera A., Karunadasa J.P., Dias D., "Remote Meter Reading over Power Distribution Lines", Proceedings, 8th annual ERU Symposium on Research for Industry 2002, Moratuwa, pp D12-D13
  25. Karunadasa J.P., Renfrew A.C., "Robust microprocessor control of a brushless DC motor driving variable inertia load”, Mechatronics Vol. 2, No. 4, pp 347-361, 1992, printed in Great Britain
  26. Karunadasa J.P., Renfrew A.C., "Design and implementation of microprocessor based sliding mode controller for brushless servomotor", IEE Proceedings-B, Vol. 138, No. 6, pp 345-363, 1991
  27. Karunadasa J.P., Renfrew A.C., "Simulation of a brushless dc motor control scheme with sliding mode control", Proceedings of 5th International conference on Electrical Machines and Drives, London, 11-13 September, 1991, pp 213-217
  28. Karunadasa J.P., Renfrew A.C., "Brushless dc motor drive system simulation", Proceedings of 25th Universities Power Engineering Conference, Aberdeen, UK, 1990, pp 97-100
  29. Karunadasa J.P., Renfrew A.C., "Analysis of torque production in brushless DC and AC motor drives", Proceedings of 4th International conference on Power Electronics and Variable speed drives, London, 1990, pp 451-456
  30. Karunadasa J.P., Renfrew A.C., "A flexible fast digital controller for brushless dc motors", Proceedings of 4th International conference on Power Electronics and Variable Speed Drives, London, 1990, pp 429-434
  31. Karunadasa J.P., Renfrew A.C., "Torque control in brushless servomotors", Proceedings of Mechatronics 89 conference, Lancaster, UK, 1989

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© Department of Electrical Engineering, University of Moratuwa, Katubedda, Moratuwa, Sri Lanka. 2012
Tel: +94 11 2650301 Ext:3200, Fax: +94 11 2650622