- Viju Nair. R, Arun Rahul. S, S. Kaarthik, and K. Gopakumar, "Generation of Higher Number of Voltage Levels by Stacking Inverters of Lower Multilevel Structures With Low Voltage Devices for Drives," in IEEE Transactions on Power Electronics, vol. 32, no. 1, pp. 52-59, Jan. 2017.
- Viju Nair. R, K. Gopakumar and L.G. Franquelo, "A Very High Resolution Stacked Multilevel Inverter Topology for Adjustable Speed Drives," in IEEE Transactions on Industrial Electronics, vol. 65, no. 3, pp. 2049-2056, March 2018.
Viju Nair. R, Arun Rahul. S, K. Gopakumar and L. G. Franquelo, "Novel Symmetric Six-Phase Induction Motor Drive Using Stacked Multilevel Inverters with a Single DC Link and Neutral Point Voltage Balancing," in IEEE Transactions on Industrial Electronics, vol. 64, no. 4, pp. 2663-2670, April 2017.
- R. Chattopadhyay, Viju Nair. R and S. Bhattacharya, "An Isolated DC-AC Converter Module Integrating Renewable Energy Source and Energy Storage for Cascaded Inverter," 2018 IEEE Energy Conversion Congress and Exposition(ECCE), Portland, OR, 2018, pp. 3647-3652.
R. Chattopadhyay, U. Raheja, G. Gohil, Viju Nair. R and S. Bhattacharya, "Sensorless phase shift control for phase shifted DC-DC converters for eliminating DC transients from transformer winding currents," 2018 IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, 2018, pp. 1882-1889.