Dr. Naruttam Kumar Roy received his PhD degree in Electrical Engineering from the University of New South Wales (UNSW), Australia. As part of his PhD research, he worked with the Commonwealth Scientific and Industrial Research Organisation (CSIRO) Energy Technology, Newcastle, Australia. He also worked as a research fellow at UNSW. He is a Professor in the Department of Electrical and Electronic Engineering at Khulna University of Engineering & Technology (KUET), Bangladesh. Dr. Roy has published more than 60 peer-reviewed papers in reputed international journals and conferences as well as several book chapters through well-regarded publishers. He received the Best Paper Award from the IEEE Conference on Industrial Electronics and Applications (ICIEA 2013) and High Impact Journal Publications Award from UNSW. He also received a University Gold Medal recognizing his outstanding performance throughout his undergraduate studies (First Class First Position). He is an Associate Editor of "Technology and Economics of Smart Grids and Sustainable Energy" which is a Springer Journal. He is a member of the Institution of Engineers, Bangladesh (IEB) and the Institute of Electrical and Electronics Engineers (IEEE), USA. He visited USA, Australia, Germany, France, Spain, Switzerland, Netherlands, Belgium, China, Ethiopia, Malaysia and India.

Educational Records

Scholarship/Award Received

Administrative Experience Record

Professional Body Membership

Research

Books

M. R. Islam, N. K. Roy, and S. Rahman (Eds.), Renewable Energy and the Environment, ISBN:978-981-10-7287-1, Springer, 2018. http://www.springer.com/us/book/9789811072864

Book Chapter

N. K. Roy, “Stability Assessment of Power Systems Integrated with Large-Scale Solar PV Units,” Advances in Solar Photovoltaic Power Plants, M. R. Islam, F. Rahman, W. Xu (Eds.), Chapter 8, Springer, ISBN: 978-3-662-50521-2, 2016.

National/International Journal

(Selected Papers)

19	T. K. Roy, M. A. Mahmud, and N. K. Roy, “An Integral Backstepping Controller Design for Compensated Distribution Networks with Rapid Earth Fault Current Limiters in Bushfire Prone Areas,” IET Generation, Transmission & Distribution, pp. 1–13, 2022.
18	A. K. Podder, A. K. Das, E. Hossain, N. M. Kumar, N. K. Roy, H. H. Alhelo, A. Karthik, and A. Al-Hinai, “Integrated Modeling and Feasibility Analysis of a Rooftop Photovoltaic Systems for an Academic Building in Bangladesh,” International Journal of Low-Carbon Technologies, Oxford University Press, vol. 16, no. 4, pp. 1317-1327, 2021.
17	A. K. Podder, M. Habibullah, N. K. Roy, and H. R. Pota, "A Chronological Review of Prospects of Solar Photovoltaic Systems in Bangladesh: Feasibility Study Analysis, Policies, Barriers, and Recommendations," IET Renewable Power Generation, vol. 15, no. 10, pp. 2109-2132, 2021.
16	N. K. Roy and H. R. Pota, "Selection of Appropriate Load Compositions for Predicting the Dynamic Performance of Distribution Grids," IET Energy Systems Integration, vol. 1, no. 2, pp. 276-287, 2019.
15	M. Nurunnabi, N. K. Roy, and H. R. Pota, "Optimal Sizing of Grid-Tied Hybrid Renewable Energy Systems Considering Inverter to PV Ratio — A case study," Journal of Renewable and Sustainable Energy, American Institute of Physics (AIP), vol. 11, no. 1, 013505, 2019.
14	M. Nurunnabi, N. K. Roy, E. Hossain, and H. R. Pota, "Size Optimization and Sensitivity Analysis of Hybrid Wind/PV Micro-grids- A Case Study for Bangladesh," IEEE Access, vol. 7, pp. 150120-150140, 2019.
13	A. K. Podder, N. K. Roy, and H. R. Pota, "MPPT Methods for Solar PV Systems: A Critical Review Based on Tracking Nature," IET Renewable Power Generation 13 (10), 1615-1632, 2019.
12	M. Nurunanbi, N. K. Roy, and M. A. Mahmud, "Investigating the Environmental and Socio-economic Impacts of Grid-tied Photovoltaic and On-shore Wind Systems in Bangladesh," IET Renewable Power Generation 12 (9), 1082-1090, 2018.
11	N. K. Roy and H. R. Pota, “Current Status and Issues of Concern for the Integration of Distributed Generation into Electricity Networks,” IEEE Systems Journal, vol. 9, no. 3, pp. 933 - 944, 2015.
10	N. K. Roy, H. R. Pota, M. A. Mahmud, and M. J. Hossain, “Voltage Control of Emerging Distribution Systems with Induction Motor Loads using Robust LQG Approach,” International Transactions on Electrical Energy Systems, John Wiley & Sons, vol. 24, no. 7, pp. 927-943, 2014.
9	M. A. Mahmud, H. R. Pota, M. J. Hossain, and N. K. Roy, “Robust Nonlinear Controller Design for Three-Phase Grid-Connected Photovoltaic Systems Under Structured Uncertainties," IEEE Transactions on Power Delivery, vol. 29, no. 3, pp. 1221-1230, 2014.
8	M. A. Mahmud, M. J. Hossain, H. R. Pota, and N. K. Roy, “Robust Partial Feedback Linearizing Stabilization Scheme for Three-Phase Grid-Connected Photovoltaic Systems,” IEEE Journal of Photovoltaics, vol. 4, no. 1, pp. 423-431, 2014.
7	N. K. Roy, H. R. Pota, M. A. Mahmud, and M. J. Hossain, “Key Factors Affecting Voltage Oscillations of Distribution Networks with Distributed Generation and Induction Motor Loads,” International Journal of Electrical Power and Energy Systems, Elsevier, vol. 53, pp. 515-528, 2013.
6	N. K. Roy, H. R. Pota, and M. J. Hossain, “Reactive Power Management of Distribution Networks with Wind Generation for Improving Voltage Stability,” Renewable Energy, Elsevier, vol. 58, pp. 84-95, 2013.
5	M. J. Hossain, M. A. Mahmud, N. K. Roy, and H. R. Pota, “Enhancement of Transient Stability Limit and Voltage Regulation with Dynamic Loads Using Robust Excitation Control,” International Journal of Emerging Electric Power Systems, vol. 14, no. 6, pp. 561-570, 2013.
4	K. K. Halder, N. K. Roy, and B. C. Ghosh, “Vector Control of an Interior Permanent Magnet Synchronous Motor Drive with RTRNN Based Back EMF Estimator,” AIUB Journal of Science and Engineering (AJSE), vol 9, no. 1, pp. 17-25, 2010.
3	N. K. Roy, M. A. Rafiq, and B. C. Ghosh, “A High Performance Induction Motor Rotor Flux Estimator Based on Modified Real Time Recurrent Learning Algorithm,” Journal of Engineering Science (JES), vol. 1, no. 1, pp. 105-112, June 2010, ISSN: 2075-4914.
2	K. K. Halder, N. K. Roy, and B. C. Ghosh, “Position Sensorless Control for an Interior Permanent Magnet Synchronous Motor SVM Drive with ANN Based Stator Flux Estimator,” International Journal of Computer and Electrical Engineering (IJCEE), vol. 2, no. 3, pp. 475-480, June 2010, ISSN: 1793-8163.
1	N. K. Roy, M. A. Rafiq, R. Kundu, and B. C. Ghosh, “Intelligent Control of Interior Permanent Magnet Synchronous Motor Drive,” Istanbul University –Journal of Electrical & Electronics Engineering (IU-JEEE), vol. 9, no. 1, issue 17, pp. 781-789, 2009, ISSN: 1303-0914.

National/International Conference

(Selected Papers)

48	S. R. Hussain and N. K. Roy, “Modified Design of an Active Neutral Point Clamped Multilevel Inverter,” 2021 5th International Conference on Electrical Information and Communication Technology (EICT), 17-19 Dec. 2021, pp. 1-6, Khulna, Bangladesh.
47	M. R. H. Mojumder and N. K. Roy, “PID, LQR, and LQG Controllers to Maintain the Stability of an AVR System at Varied Model Parameters,” 2021 5th International Conference on Electrical Engineering and Information Communication Technology (ICEEICT), 18-20 Nov. 2021, pp. 1-6, Dhaka, Bangladesh.
46	Aktabujjaman, N. K. Roy, and M. M. H. Khan, “Impact of Large 132/33 kV Power Transformer on Distance Protection in Bangladesh,” 2021 Fourth IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT), 15-17 September 2021, IEEE, Tamil Nadu, India.
45	A. K. Podder, K. Ahmed, N. K. Roy, and M. Habibullah, “Design and Simulation of a Photovoltaic and Fuel Cell Based Micro-grid System,” 2019 International Conference on Energy and Power Engineering (ICEPE), 14-16 March 2019, IEEE, Dhaka, Bangladesh.
44	A. K. Podder, M. Habibullah, and N. K. Roy, “Current THD Analysis of Model Predictive Control based Grid-Connected PV Inverter,” 2019 International Conference on Electrical, Computer and Communication Engineering (ECCE), 7-9 February 2019, IEEE, Cox's Bazar, Bangladesh.
43	M.I.U.I. Chowdhury, N. K. Roy, and M. A. Ahamed, “A Reliable Electrical Power System Scheme for Rooppur Nuclear Power Plant Considering Diversity and Redundancy,” 2nd International Conference on Innovations in Science, Engineering and Technology (ICISET), 27-28 Oct. 2018, IEEE, Chittagong, Bangladesh.
42	A. Das and N. K. Roy, “Reduction of Harmonics Distortion and Voltage Sag of PMSG Based Wind Energy Systems Connected to Distribution Networks,” IEEE R10 HTC, 21-23 December 2017, Dhaka, Bangladesh.
41	U. Paul, M. M. Hasan, L. Labib and N. K. Roy, "Optimal Design of Hybrid Microgrids for Readymade Garments Industry of Bangladesh: A Case Study," 3rd International Conference on Electrical Information and Communication Technology (EICT), 7-9 December 2017, Khulna, Bangladesh.
40	A. Das, N. K. Roy, and H. R. Pota, “Power Quality Analysis of Distributed Wind Generation Systems,” 3rd International Conference on Electrical Information and Communication Technology (EICT), 7-9 December 2017, Khulna, Bangladesh.
39	A. K. Podder, K. Ahmed, N. K. Roy, and P. C. Biswas, “Design and Simulation of an Independent Solar Home System with Battery Backup,” Proceedings of the 2017 4th International Conference on Advances in Electrical Engineering (ICAEE), IEEE, Dhaka, Bangladesh, 28-30 September, 2017.
38	M. Hassan, N. K. Roy and M. Sahabuddin, “Mitigation of Frequency Disturbance in Power Systems during Cyber-Attack,” International Conference on Electrical, Computer and Telecommunication Engineering (ICECTE), pp. 1-4, 8-10 Dec. 2016, Rajshahi, Bangladesh.
37	M. S. Hossain, N. K. Roy, and M. O. Ali, “Modeling of Solar Photovoltaic System Using MATLAB/Simulink,” International Conference on Computer and Information Technology (ICCIT), 18-20 December 2016, Dhaka, Bangladesh.
36	N. K. Roy, H. R. Pota, and M. A. Mahmud, “DG Integration Issues in Unbalanced Multi-phase Distribution Networks,” Australasian Universities Power Engineering Conference (AUPEC), 25-28 Sept., 2016, Brisbane, Australia.
35	M. Ahmed and N. K. Roy, “Design of a Power System Stabilizer Using Adaptive Neuro-Fuzzy Logic for a Multi-Machine System having Dynamic Loads," In the 5th International Conference on Informatics, Electronics & Vision (ICIEV), 13-14 May, 2016, Dhaka, Bangladesh.
34	S. K. Roy and N. K. Roy, “Loss Minimization in Rural Distribution Systems from Double Digit to Single Digit,” 3rd International Conference on Advances in Electrical Engineering (ICAEE), 17-19 December, 2015, Dhaka, Bangladesh.
33	M. Ahmed and N. K. Roy, “A Comparative Analysis on Different Types of Power System Stabilizers," In the 5th International Conference on Informatics, Electronics & Vision (ICIEV), 13-14 May, 2016, Dhaka, Bangladesh.
32	M. Hassan and N. K. Roy, “Damping of Power System Oscillations using STATCOM,” Proceedings of International Conference on Electrical Information and Communication Technology (EICT), pp. 545-548, 10-12 December 2015, Khulna, Bangladesh.
31	S. K. Roy and N. K. Roy, “Cost Analysis of Rural Distribution Systems with Three Phase and Single Phase Tap Lines,” Proceedings of International Conference on Electrical Information and Communication Technology (EICT), pp. 504-509, 10-12 December, 2015, Khulna, Bangladesh.
30	M. Nurunnabi and N. K. Roy, “Grid Connected Hybrid Power System Design Using HOMER,” 3rd International Conference on Advances in Electrical Engineering (ICAEE), 17-19 December, 2015, Dhaka, Bangladesh.
29	M. Nurunnabi and N. K. Roy, “Renewable Energy Based Hybrid Power System: the Best Way to Keep the World Pollution Free from GHG,” Proceedings of International Conference on Electrical Information and Communication Technology (EICT), pp. 539-544, 10-12 December, 2015, Khulna, Bangladesh.
28	N. K. Roy and H. R. Pota, “Investigating the Controller Interactions of Distribution Systems with Distributed Generation,” 9th IFAC Symposium on Control of Power and Energy Systems-IFAC papers online, pp. 19-24, 9-11 December 2015, New Delhi, India.
27	M. A. Mahmud, M. J. Hossain, H. R. Pota, and N. K. Roy, “Robust Nonlinear Excitation Controller Design for Multimachine Power Systems,” IEEE Power & Energy Society General Meeting, pp. 1-5, 27-31 July 2014, Washington DC, USA.
26	M. A. Mahmud, M. J. Hossain, H. R. Pota, and N. K. Roy, “Nonlinear Distributed Controller Design for Maintaining Power Balance in Islanded Microgrids,” IEEE Power & Energy Society General Meeting, pp. 1-5, 27-31 July 2014, Washington DC, USA.
25	N. K. Roy and H. R. Pota, “Effects of Operational Modes of Distributed Wind Generators on Distribution Networks,” IEEE Power & Energy Society General Meeting, 27-31 July 2014, Washington DC, USA.
24	A. F. Abdou, A. Abu-Siada, H. R. Pota, and N. K. Roy, “Improving Fault Ride Through Capability of DFIG during RSC Flashover Fault,” IEEE International Conference on Smart Energy Grid Engineering (SEGE 2013), pp. 1-5, 28-30 August 2013, Oshawa, Canada.
23	N. K. Roy and H. R. Pota, “Stable Operation of Distribution Networks using D-STATCOM considering Uncertainties in Load Compositions,” IEEE International Conference on Smart Energy Grid Engineering (SEGE 2013), 28-30 August 2013, Oshawa, Canada.
22	N. K. Roy and H. R. Pota, “Impact of High PV Penetration into Distribution Networks under Contingencies,” IEEE International Conference on Smart Energy Grid Engineering (SEGE 2013), 28-30 August 2013, Oshawa, Canada.
21	N. K. Roy, H. R. Pota, M. A. Mahmud, and M. J. Hossain, “A Control Methodology for DFIG Type Wind Turbines Connected to Distribution Networks,” IEEE Power and Energy Society General Meeting (PESGM), 21-25 July 2013, Vancouver, Canada.
20	N. K. Roy, H. R. Pota, M. A. Mahmud, and M. J. Hossain, “D-STATCOM Control in Distribution Networks with Composite Loads to Ensure Grid Code Compatible Performance of Photovoltaic Generators,” IEEE Conference on Industrial Electronics and Applications (ICIEA), 19-21 June 2013, Melbourne, Australia (Received best paper award).
19	M. S. Ali, M. A. Mahmud, H. R. Pota, M. J. Hossain, and N. K. Roy, “Stability Analysis of Grid-Connected Photovoltaic Systems using a Linear Zero Dynamic Controller,” IEEE Conference on Industrial Electronics and Applications (ICIEA 2013), 19-21 June 2013, Melbourne, Australia.
18	N. K. Roy and H. R. Pota, “Distribution Grid Codes: Opportunities and Challenges,” IEEE PowerTech, 16-20 June 2013, Grenoble, France.
17	N. K. Roy, H. R. Pota, and S. Sayeef, “Voltage Oscillations of Power Distribution Networks in the Presence of DFIGs and Induction Motor Loads,” IEEE PowerTech, 16-20 June 2013, Grenoble, France.
16	N. K. Roy, H. R. Pota, and M. A. Mahmud, “Design of a Norm-Bounded LQG Controller for Power Distribution Networks with Distributed Generation,” Australian Control Conference (AUCC), 15-16 November 2012, Sydney, Australia.
15	N. K. Roy, H. R. Pota, and T. F. Orchi, “Small-Signal Stability Assessment of Active Distribution Networks with Dynamic Loads,” Australasian Universities Power Engineering Conference (AUPEC), 26-29 Sep. 2012, Bali, Indonesia.
14	N. K. Roy, H. R. Pota, M. J. Hossain, and D. Cornforth, “An Effective VAR Planning to Improve Dynamic Voltage Profile of Distribution Networks with Distributed Wind Generation,” IEEE Power and Energy Society General Meeting (PESGM 2012), 22-26 July 2012, San Diego, USA.
13	N. K. Roy, H. R. Pota, and Adnan Anwar, “A New Approach for Wind and Solar Type DG Placement in Power Distribution Networks to Enhance Systems Stability,” IEEE International Power Engineering and Optimization Conference (PEOCO), 6-7 June 2012, pp. 296-301, Melaka, Malaysia.
12	N. K. Roy, H. R. Pota, M. J. Hossain, and D. Cornforth, “Impact of SCIG and DFIG Based Wind Turbine on the Stability of Distribution Networks: static and dynamic aspects,” 11th International Conference on Environment and Electrical Engineering (EEEIC), 18-25 May 2012, pp. 543-548, Venice, Italy.
11	M. S. Ali, H. R. Pota, F. M. Islam, and N. K. Roy, “Dynamic Load Variation and Stability Analysis in Distribution Networks with Distributed Generators,” 11th International Conference on Environment and Electrical Engineering (EEEIC), 18-25 May 2012 , pp. 531-536, Venice, Italy.
10	F. M. Islam, H. R. Pota, and N. K. Roy, “Impact of Dynamic PHEVs Load on Renewable Sources based Distribution System,” IECON 2011, 7-10 November 2011, Melbourne, Australia.
9	A. Anwar, N. K. Roy, and H. R. Pota, “Voltage Stability Analysis with Optimum Size and Location Based Synchronous Machine DG,” Australasian Universities Power Engineering, AUPEC 2011, 25-28 September 2011, Brisbane, Australia.
8	N. K. Roy, M. J. Hossain, and H. R. Pota, “Effects of Load Modeling in Power Distribution System with Distributed Wind Generation,” Australasian Universities Power Engineering Conference, AUPEC 2011, 25-28 September 2011, Brisbane, Australia.
7	N. K. Roy, M. A. Mahmud, and H. R. Pota, “Impact of High Wind Penetration on the Voltage Profile of Distribution Systems,” North American Power Symposium, 4-6 August 2011, Boston, MA, USA.
6	N. K. Roy, M. J. Hossain, and H. R. Pota, “Voltage Profile Improvement for Distributed Wind Generation using D-STATCOM,” IEEE Power and Energy Society General Meeting, 24-28 July 2011, Detroit, USA.
5	N. K. Roy, M. A. Rafiq, and B. C. Ghosh, “Space Vector Modulation Based Fast Speed Response Field-Orientation Control of Induction Motor Drive with Adaptive Neural Flux Estimator,” in Proc. the International Conference on Electrical and Computer Engineering (ICECE), 18-20 December 2010, Dhaka, Bangladesh.
4	K. K. Halder, N. K. Roy, and B. C. Ghosh, “A High Performance Position Sensorless Surface Permanent Magnet Synchronous Motor Drive Based on Flux Angle,” in Proc. the International Conference on Electrical and Computer Engineering (ICECE), 18-20 December 2010, Dhaka, Bangladesh.
3	M. A. Rafiq, N. K. Roy, and B. C. Ghosh, “Genetic Algorithm Based PI Controller Tuning for Induction Motor Drive with ANN Flux Estimator,” in Proc. the International Conference on Electrical and Computer Engineering (ICECE), 18-20 December 2010, Dhaka, Bangladesh.
2	M. A. Rafiq, N. K. Roy, and B. C. Ghosh, “Three Algorithm for Learning Artificial Neural Network: A Comparison for Induction Motor Flux Estimation,” In Proceedings of the 12th International Conference on Computer and Information Technology (ICCIT), pp. 355-360, 21-23 December 2009, Dhaka, Bangladesh, IEEE Catalogue Number 978-1-4244-6283-4.
1	M. A. Rafiq, N. K. Roy, and B. C. Ghosh, “An Improved Induction Motor Rotor Flux Estimator Based on Correlated Real Time Recurrent Learning Algorithm,” in Proc. of International Conference on Power System Analysis, Control and Optimization (PSACO-2008), pp. 866-873, 13-15 March 2008, Visakhapatnam, Andhra Pradesh, India.

National Conference

2	K. K. Halder, M. M. Haque, N. K. Roy, and B. C. Ghosh, "A Recurrent Neural Network Based Back EMF Estimator for Position Sensorless Control of IPM Synchronous Motor Drive," Conference on Engineering Research, Innovation and Education (CERIE), pp. 471-476, 11-13 January 2011, Sylhet, Bangladesh.
1	N. K. Roy, H. R. Pota, M. A. Mahmud, and M. J. Hossain, "Impacts of Distributed Wind Generation on Distribution Networks," Solar2010, the 48th AuSES Annual Conference, pp. 1-10, 1-3 December, 2010, Australian National University, Canberra, Australia.

Course Conduction

Power System Analysis II
Electrical Machines II

Supervision