Area of Research: Power system studies

Book

S. Krishna, An Introduction to Modelling of Power System Components, Springer, 2014

Publications in Journals

1.       T. Kalyan Ram and S. Krishna, “Polynomial approximation of the vector field in normal form analysis of power system”, accepted for publication in Sadhana

2.       T.S. Sreeram and S. Krishna, “Graph-Based Assessment of Vulnerability to False Data Injection Attacks in Distribution Networks”, IEEE Transactions on Power Systems, Vol. 39, No. 2, pp. 4510-4520, March 2024

3.       T. Kalyan Ram and S. Krishna, “Normal form analysis in the presence of SVC and STATCOM and the effect of their siting on damping of rotor swings”, Electric Power Systems Research , Vol. 221, Article 109418, August 2023

4.       T.S. Sreeram and S. Krishna, “A novel vulnerability index to select measurements for defense against false data injection attacks”, International Journal of Electrical Power and Energy Systems , Vol. 145, Article 108626, February 2023

5.       T.S. Sreeram and S. Krishna, “Protection Against False Data Injection Attacks Considering Degrees of Freedom in Attack Vectors”, IEEE Transactions on Smart Grid, Vol. 12, No. 6, pp. 5258-5267, November 2021

6.       T. Kalyan Ram and S. Krishna, “Accuracy of Normal Form Approximation for Power System Nonlinear Analysis”, IEEE Transactions on Power Systems, Vol. 36, No. 5, pp. 4828-4831, September 2021

7.       T.S. Sreeram and S. Krishna, “Managing False Data Injection Attacks during Contingency of Secured Meters”, IEEE Transactions on Smart Grid, Vol. 10, No. 6, pp. 6945-6953, November 2019

8.       Sunil S. Damodhar and Krishna Suryanarayan, “Determination of Maximum Loadability by a Mixed Complementarity Formulation of the Adjusted Power Flow Problem”, Electric Power Components and Systems, Vol. 46, No. 4, pp. 418-428, 2018

9.       Sunil S. Damodhar and S. Krishna, “A Novel Load Shedding Scheme for Voltage Stability”, International Journal of Emerging Electric Power Systems, Vol. 17, No. 6, pp. 649-661, December 2016

10.       K. Sarojkumar and S. Krishna, “Application of Energy Function as a Measure of Error in the Numerical Solution for Online Transient Stability Assessment”, International Journal of Emerging Electric Power Systems, Vol. 17, No. 4, pp. 471-484, August 2016

11.       Athbel Joe and S. Krishna, “An Underfrequency Load Shedding Scheme with Minimal Knowledge of System Parameters”, International Journal of Emerging Electric Power Systems, Vol. 16, No. 1, pp. 33-46, February 2015

12.       S. Krishna, “Teaching Calculation of Inductance of Power Transmission Lines”, International Journal of Electrical Engineering Education, Vol. 48, No. 4, pp. 434-443, October 2011

13.       S. Krishna and K.R. Padiyar, “On-Line Dynamic Security Assessment: Determination of Critical Transmission Lines,” Electric Power Components and Systems, Vol. 38, No. 2, pp. 152-165, 2009

14.       S. Krishna, “Stability Analysis of Static Synchronous Compensator with Reactive Current Controller,” Electric Power Systems Research, vol. 78, No. 6, pp. 1053-1068, June 2008

15.       K.R. Padiyar and S. Krishna, “On-Line Detection of Loss of Synchronism using Energy Function Criterion,” IEEE Transactions on Power Delivery, vol. 21, No. 1, pp. 46-55, January 2006

16.   S. Krishna and K.R. Padiyar, “Discrete Control of Unified Power Flow Controller for Stability Improvement,” Electric Power Systems Research, vol. 75, No. 2-3, pp. 178-189, August 2005

Publications in Conferences

1.       T Kalyan Ram and S. Krishna, “Studies on Accuracy of Higher Order Normal Forms Applied to Power System Analysis Using Neumann Series Convergence Criterion”, 11th IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), Macao, December 2019

2.       Sarojkumar K and S. Krishna, “Comparison of Numerical Methods for Online Dynamic Security Assessment Using Energy Function”, IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems 2015 (IEEE SPICES 2015), Calicut, February 2015

3.       Sarojkumar K and S. Krishna, “A New Measure of Local Error in the Numerical Solution for Online Dynamic Security Assessment,” 45^th North American Power Symposium, Manhattan, September 2013

4.       Sunil S. Damodhar and S. Krishna, “Generation Rescheduling and Shunt Compensation Planning for Voltage Stability Improvement,” 2012 IEEE Fifth Power India Conference, PICONF 2012, Delhi-NCR, December 2012

5.       Mohammed Iqbal R and S. Krishna, “Online Dynamic Security Assessment of Power Systems Using Critical Group Energy Function,” 2012 IEEE Fifth Power India Conference, PICONF 2012, Delhi-NCR, December 2012

6.       Sunil S. Damodhar and S. Krishna, “Comparison of Participation Factor Method and Selective Eigenvalue Computation for Voltage Stability Analysis,'' The 8th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, MEDPOWER 2012, Cagliari, October 2012

7.       T.G. Giri Kumar and S. Krishna, “Determination of Individual Generator Participation in the Swing Modes”, Centenary Conference, 2011-Electrical Engineering, Indian Institute of Science, Bangalore, December 2011

8.       S. Krishna, “Harmonic Elimination by Selection of Switching Angles and DC Voltages in Cascaded Multilevel Inverters,” Fifteenth National Power Systems Conference, Mumbai, December 2008

9.       S. Krishna, “Bifurcation Analysis of Static Synchronous Compensator with Reactive Current Controller,” IEEE India International Conference on Power Electronics, Chennai, December 2006

10.   S. Krishna and K.R. Padiyar, “Optimal Parameters of UPFC for Power Flow,” IEEE India International Conference on Power Electronics, Chennai, December 2006

11.   S. Krishna and K.R. Padiyar, “Prediction of Critical Cutsets Associated with Transient Instability,” National Power Systems Conference 2004, IIT Madras, December 2004

12.   K.R. Padiyar, S. Krishna and Nagesh Prabhu, “On-Line Detection of Loss of Synchronism in Large Power Systems,” International Conference on Power Systems – Challenges to Electric Utilities in the New Millennium, Katmandu, November 2004

13.   K.R. Padiyar and S. Krishna, “Transient Stability Improvement by Discrete Control of FACTS Controllers,” All India Seminars on Electric Power System Operation: New Challenges, Hyderabad, and July 2003

14.   K.R. Padiyar and S. Krishna, “Application of Structure Preserving Energy Function for Planning of TCSC for Enhancement of Transient Stability,” International Conference on Present and Future Trends in Transmission and Convergence, New Delhi, December 2002

15.   K.R. Padiyar and S. Krishna, “Transient Stability Augmentation by Programmed Power Angle Relationship using Unified Power Flow Controller,” IEE Seventh International Conference on AC-DC Power Transmission, London, November 2001

16.   K.R. Padiyar and S. Krishna, “Application of FACTS Controllers for Emergency Control of Power Systems,” CIGRE Regional Meeting - International Conference on Bulk Power Transmission Integration in Developing Countries, New Delhi, November 2001

17.   K.R. Padiyar and S. Krishna, “On-Line Detection of Loss of Synchronism using Locally Measurable Quantities,” IEEE Transmission and Distribution Conference and Exposition, Atlanta, October 2001

18.   S. Krishna and K.R. Padiyar, “Dynamic Security Analysis using Structure Preserving Energy Function,” Eleventh National Power Systems Conference, Bangalore, December 2000

19.   S. Krishna and K.R. Padiyar, “Transient Stability Assessment using Artificial Neural Networks,” IEEE International Conference on Industrial Technology 2000, Goa, January 2000

20.   G. Umesh and S. Krishna, “Studies on Impulse Testing of Interturn Insulation in High Voltage Rotating Machine Coils,” INSULEC-97, Fifth International Seminar on Electrical and Electronic Insulating Materials, Bangalore, November 1997