Athula Rajapakse

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Ph.D. in Quantum Engineering and Systems Science, University of Tokyo, Japan (1998)
M.Eng. in Energy Technology, Asian Institute of Technology (AIT), Thailand, (1993)
B.Sc.(Eng.) in Electrical Engineering (First Class Honors), University of Moratuwa, Sri Lanka (1990)
Professor at the Dept. of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada since 2004.
Registered Professional Engineer in Province of Manitoba, Canada
Senior Member - IEEE

Electrical and Computer Engineering
Power Systems
Power system protection, wide area monitoring and control of power systems, renewable energy integration, active distribution systems and microgrids, and power system simulation
There are currently no positions open.

Recent/current research themes include
1. Application of wide area synchrophasor measurements to predict power system stability
2. Protection and control aspects of integrating distributed generation in microgrids
3. Protection and fault location in complex HVDC transmission systems
4. Modeling and simulation of semiconductor switching devices for loss estimation
5. Power system protection using transient signals
6. Substation automation and communication assisted protection

1 J. Sneath, and A.D. Rajapakse, Fault Detection and Interruption in an Earthed HVDC Grid using ROCOV and Hybrid DC Breakers, (2015) IEEE Transactions on Power Delivery, Vol xx (x), pp xxx-xxx. (early access)

2 D.R. Gurusinghe, A.D. Rajapakse, and K. Narendra, (2014), Testing and Enhancement of the Dynamic Performance of a Phasor Measurement Unit, IEEE Transactions on Power Delivery, Vol 29 (4), pp 1551-1560.

3 C.F. Jensen, O.M.K.K. Nanayakkara, A.D. Rajapakse, U.S. Gudmundsdottir, and C.L. Bak, (2014), Online Fault Location on AC Cables in Underground Transmission Systems Using Sheath Currents, Electric Power Systems Research, Vol. 115(October), pp 74-79.

4 N. W. A. Lidula and A. D. Rajapakse, (2014), Voltage Balancing and Synchronization of Microgrids with Highly Unbalanced Loads, Renewable and Sustainable Energy Reviews, Vol. 31, pp. 907–920.

5 N.W.A. Lidula, A.D. Rajapakse, J. P. Pham and N. Denboer, (2014), Prototype Implementation of an Islanding Detection Relay Based on Pattern Classification of Current and Voltage Transients, Journal of National Science Foundation Sri Lanka, Vol. 42(1), pp 3-15.

6 N. Perera, and A. D. Rajapakse, (2013), Series Compensated Double Circuit Transmission Line Protection Using Directions of Current Transients”, IEEE Transactions on Power Delivery Vol. 28(3), pp 1566-1575.

7 K. Nanayakkara, A.D. Rajapakse, and R. Wachal, (2012), Traveling Wave Based Line Fault Location in Star Connected Multi-terminal HVDC Systems, IEEE Transactions on Power Delivery, Vol. 27(4), pp 2286-2294.

8 N. Perera, and A.D. Rajapakse, (2012), Design and Hardware Implementation of a Modular Transient Directional Protection Scheme Using Current Signals, IET Transactions on Generation, Transmission & Distribution, Vol. 6(6), pp. 554-562.

9 N. W. A. Lidula and A. D. Rajapakse, (2012), A Pattern Recognition Approach for Detecting Power Islands Using Transient Signals - Part II: Performance Evaluation, IEEE Transactions on Power Delivery, Vol. 27(3) pp. 1071-1080.

10 N. Perera, and A.D. Rajapakse, (2012), Development and Hardware Implementation of a Fault Transients Recognition System, IEEE Transactions on Power Delivery, Vol. 27(1), pp. 40-52.

11 K. Nanayakkara, A.D. Rajapakse, and R. Wachal, (2012), Location of DC Line Faults in Conventional HVDC Systems with Segments of Cables and Overhead Lines Using Terminal Measurements, IEEE Transactions on Power Delivery, Vol. 27(1), pp. 279-288.

12 F. R. Gomez, A. D. Rajapakse, U. D. Annakkage and I. T. Fernando, (2011), Support Vector Machine Based Algorithm for Post-Fault Transient Stability Status Prediction Using Synchronized Measurements, IEEE Transactions on Power Systems, Vol. 26(2), pp. 1474 – 1483

13 N. Perera, and A.D. Rajapakse, (2011), Recognition of Fault Transients Using a Probabilistic Neural-Network Classifier, IEEE Transactions on Power Delivery, Vol. 26(1), pp. 410 – 419.

14 N.W.A. Lidula, and A.D. Rajapakse, (2011), Microgrids Research: A Review of Experimental Microgrids and Test Systems”, Renewable and Sustainable Energy Reviews, Vol. 15(1), pp. 186–202.

15 N. W. A. Lidula and A. D. Rajapakse, (2010), A Pattern Recognition Approach for Detecting Power Islands Using Transient Signals—Part I: Design and Implementation, IEEE Transactions on Power Delivery, Vol. 25(4), pp 3070 - 3077.

16 D. Q. Zhou, U. D. Annakkage and A. D. Rajapakse, (2010), Online Monitoring of Voltage Stability Margin Using an Artificial Neural Network, IEEE Transactions on Power Systems, Vol. 25(3), pp. 1566 – 1574.

17 A.D. Rajapakse, F. Gomez, O.M.K.K. Nanayakkara, P.A. Crossley, and V.V. Terzija, (2010), Rotor Angle Instability Prediction Using Post-Disturbance Voltage Trajectories, IEEE Transactions on Power Systems, Vol. 25(2), Pp. 947 – 956.

18 G. Wijeweera, B. Bahreyni, C. Shafai, and A. Rajapakse, D.R. Swatek, (2009), Micromachined Electric-Field Sensor to Measure AC and DC Fields in Power Systems, IEEE Transactions on Power Delivery. Vol. 24(3), pp 988-995.

19 A.D. Rajapakse, A.M. Gole and R.P. Jayasinghe, (2009), An Improved Representation of FACTS Controller Semiconductor Losses in Emtp-type Programs Using Accurate Loss-Power Injection into Network Solution, IEEE Transactions on Power Delivery, Vol. 24(1), pp 381-389.

20 N. Perera, A.D. Rajapakse, and T. Buchholzer, (2008), A Novel Protection Scheme for Distribution Networks with DG using Fault Directions Determined from the Transient Currents, IEEE Transactions on Power Delivery, Vol. 23(4), pp 2347-2355.

21 N. Perera, and A. Rajapakse, (2008), Fast Isolation of Faults in Transmission Systems Using Current Transients, International Journal of Electric Power Systems Research, Vol 78(9), pp 1568-1578.

22 B. Bahreyni, G. Wijeweera, C. Shafai, and A. Rajapakse, (2008), Analysis and Design of a Micromachined Electric Field Sensor, IEEE/ASME Journal of Microelectromechanical Systems, Vol. 17(1), pp. 31-36.

23 A. Rajapakse and A. Puangpairoj, (2006), Harmonic Reducing ANN Controller for a SVC Compensating Unbalanced Fluctuating Loads, International Journal of Emerging Electric Power System, Vol. 7(1), pp. Available at: http://www.bepress.com/ijeeps/vol7/iss1/art5

24 A.D. Rajapakse, A.M. Gole, and P.L. Wilson, (2005), Electromagnetic Transients Simulation Models for Accurate Representation of Switching Losses and Thermal Performance in Power Electronic Systems, IEEE Transactions on Power Delivery, Vol. 20(1), pp. 319-327.

25 A. Rajapakse, K. Furuta and S. Kondo, (2002), Evolutionary Learning of Fuzzy Logic Controllers and Their Adaptation Through Perpetual Evolution, IEEE Transactions on Fuzzy Systems, Vol. 10 (3), pp 309-321.

26 S. Chirarattananon and A. Rajapakse, (2001), Determination of the Divergence of Calculation Methods for Heat Gain through Walls, ASHRAE International Journal of HVAC&R Research, Vol.7 (1), pp. 15-30.

27 A. Rajapakse, K. Furuta and S. Kondo, (1999), Identification of Nonlinear Dynamic Models Using Partially Connected Neural Networks Trained by Orthogonal Least Square Estimation, IEEJ Transactions on Electronics, Information and Systems, Vol. 119-C(3), pp. 335-343.

28 A. Rajapakse, K. Furuta and S. Kondo, (1997), Photovoltaic Cell Temperature Estimation Using Neural Networks, IEEJ Transactions on Electronics, Information and Systems, Vol. 117-C(12), pp. 1827-1832 .

29 S. Chungpaibulpatana and A. Rajapakse, (1996), Reliability Study on a Small-Scale Photovoltaic Refrigeration System, RERIC International Energy Journal, Vol.18(1), pp. 43-59

30 A. Rajapakse and S. Chungpaibulpatana, (1994), Dynamic Simulation of a Photovoltaic Refrigeration System, RERIC International Energy Journal, Vol.16 (2), pp. 67-100.

31 A. Rajapakse, (1994), Refrigeration: The Photovoltaic Option, Energy for Sustainable Development, Vol.1(2), pp. 48-49

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