1. K. K. Prabhakaran ; A. Karthikeyan. “Electromagnetic Torque-Based Model Reference Adaptive System Speed Estimator for Sensorless Surface Mount Permanent Magnet Synchronous Motor Drive”, IEEE Transactions on Industrial Electronics,67(7). pp 5936 – 5947, 2020 https://doi.org/10.1109/TIE.2018.2829678
2. A. Karthikeyan& K. K. Prabhakaran, F. Blaabjerg.“Laboratory implementation of electromagnetic torque based MRAS speed estimator for sensorless SMPMSM drive”Electronics Letters 55(21) 17 th Oct, 2019 pp.  1145 - 1147https://doi.org/10.1049/el.2019.2229.
3. K. K. Prabhakaran, A. Karthikeyan, S. Varsha, B. V. Perumal and S. Mishra, “Standalone Single Stage PV- Fed Reduced Switch Inverter Based PMSM for Water Pumping Application”, IEEE Transactions on Industry Applications PISSN: 00939994, Vol 56, 2019, 6526-6535, 10.1109/TIA.2020.3023870. 
4. Karthikeyan, Abhilash Krishna D.G, Sushant Kumar, Venkatesa Perumal B, S. Mishra  “Dual Role CDSC - Based Dual Vector Control for Effective Operation of DVR With Harmonic Mitigation” IEEE Transactions on  Industrial Electronics., vol: 66, no. 01, pp. 4-13 
5. Karthikeyan, Prabhakaran K K, C. Nagamani “FPGA based direct torque control with speed loop Pseudo derivative controller for PMSM drive” Cluster Computing, Springer (doi.org/10.1007/s10586-018-1988-3) 
6. A. Karthikeyan, C. Nagamani and G. SaravanaIlango (2012) A versatile rotor position computation algorithm for the power control of a grid connected Doubly-Fed Induction Generator. IEEE Trans. on Energy Convers.,vol: PP , no. 99, pp. 1-10
7. A. Karthikeyan, C. Nagamani, AritraBasu Ray Chaudhury and G. SaravanaIlango (2012) An implicit position and speed estimation algorithm without the flux computation for the rotor side control of Doubly-Fed Induction Motor Drive. IET Electric Power Applications, vol. 6, no. 4, pp. 243–252
8. A. Karthikeyan, C. Nagamani, G. SaravanaIlango, A. Sreenivasulu (2011) Hybrid open-loop excitation system for a  wind turbine-driven stand-alone induction generator. IET Renewable Power Generation, vol. 5, no. 2, pp. 184–19. 

Conferences:

1.  Karthikeyan, Abhilash Krishna D.G., Suresh Kurra, Prabhakaran K.K. “International Conference on INTELEC, Torino, Itally during October 7-11^th 2018.”“Uncertainty and disturbance estimator based control of Transformerless DVR  ”
2. Karthikeyan, Varsha S., Prabhakaran K.K. “Hybrid Control of single phase to three phase reduced switch converter for PMSM Drive ” 15^th INDICON Coimbatore, during 16^th to 18^th December, 2018.
3. Karthikeyan, Prabhakaran K K,Varsha S, Venkatesa Perumal B, S Mishra “Single stage PV fed reduced inverter based PMSM for standalone water pumping application” 8^th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2018), IIT Madras, Chennai.
4. Karthikeyan, Abhilash Krishna D.G, Nagamani C “Virtual Impedance based DFCL for DVR During Downstream Faults” 8^th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2018), IIT Madras, Chennai
5. Karthikeyan, K. K. Prabhakaran, D. G. Abhilash Krishna and C. Nagamani “Standalone single stage PV fed reduced switch inverter based independent control of two PMSM drive” IEEE International Telecommunications Energy Conference (INTELEC), Turin, 2018, pp. 1-6.
6. Karthikeyan, D. G. Abhilash Krishna, S. Kurra and K. K. Prabhakaran “Uncertainity and Disturbance Estimator based Control of Transformerless DVR” IEEE International Telecommunications Energy Conference (INTELEC), Turin, 2018, pp. 1-6.
7. Karthikeyan, D. G. Abhilash Krishna, Tejaswini, Aeshwarya Sweta, and Laxmi Prasanna “A Comparative Study of PI and PDF Controllers for DVR Under Distorted Grid Conditions” Presented in National Power System Conference (NPSC), NIT Tiruchirappalli, 2018.