Publications
Featured Articles
Featured Posters
Complete List
Journal Articles
Vishnu Narayan Vipin, D. Venkatramanan and Ned Mohan, "An Online-Optimization-based High-frequency link Control of an MMC-driven Power Electronic Transformer for Wind-energy Systems," IEEE Transactions on Energy Conversion, 2023 (accepted).
D. Venkatramanan and Sairaj Dhople, "Per-unit Modeling via Similarity Transformation," IEEE Transactions on Energy Conversion, 2022 (accepted).
Nathan Baeckeland, D. Venkatramanan, Michael Kleemann, and Sairaj Dhople, "Stationary-frame Grid-forming Inverter Control Architectures for Unbalanced Fault-current Limiting," IEEE Transactions on Energy Conversion, vol. 37, no. 4, pp. 2813-2825, Dec 2022.
P. Roja, D. Venkatramanan (co-first author), and Vinod John, "A Nonlinear Model-based Analysis and Accurate Design of Ultracapacitor Stack for Energy Storage Systems," in IEEE Transactions on Energy Conversion, vol. 37, no. 1, pp. 403 - 412, Mar. 2021.
P. Roja, D. Venkatramanan, and Vinod John, "Design Considerations of Ultracapacitor Stack for Optimal Sizing of Energy Storage Systems in Contingency Applications," IEEE Transactions on Industry Applications, vol. 56, no. 6, pp. 6803-6814, Nov.-Dec. 2020.
D. Venkatramanan and Vinod John, "A Reconfigurable Solar Photovoltaic Grid-Tied Inverter Architecture for Enhanced Energy Access in Backup Power Applications," IEEE Transactions on Industrial Electronics, vol. 67, no. 12, pp. 10531-10541, Dec. 2020.
D. Venkatramanan and Vinod John, "Dynamic Phasor Modeling and Stability Analysis of SRF-PLL-Based Grid-Tie Inverter Under Islanded Conditions," IEEE Transactions on Industry Applications, vol. 56, no. 2, pp. 1953-1965, Mar.-Apr. 2020.
D. Venkatramanan and Vinod John, "Dynamic Modeling and Analysis of Buck Converter Based Solar PV Charge Controller for Improved MPPT Performance," IEEE Transactions on Industry Applications, vol. 55, no. 6, pp. 6234-6246, Nov.-Dec. 2019.
D. Venkatramanan, Anil K Adapa, Pallavi B, and Vinod John, "Power Conversion Technologies for High-Performance AC Micro-grid," INAE Letters, vol. 4, no. 1, pp. 27-35, 2019.
D. Venkatramanan and Vinod John, "Design and comparative study of discrete and module-based IGBT power converters," Sadhana, vol. 42, no. 8, pp. 14091-1409, Aug 2017.
Anil K Adapa, D. Venkatramanan, and Vinod John, "Auxiliary subsystems of a General-Purpose IGBT Stack for high-performance laboratory power converters," Sadhana, vol. 42, No. 8, pp. 1355-1362, Aug 2017.
D. Venkatramanan and Vinod John, "Integrated higher-order pulse-width modulation filter-transformer structure for single-phase static compensator," IET Power Electronics, vol. 6, no. 1, pp. 67-77, Jan 2013.
Conference Papers
Manish K Singh, D. Venkatramanan, and Sairaj Dhople, "Towards Optimal Primary- and Secondary-control Design for Networks with Generators and Inverters", Proc. 58th Annual Allerton Conference on Communication, Control, and Computing (Allerton'2022), IL, USA, Sept 2022.
Nathan Baeckeland, D. Venkatramanan, Michael Kleemann, and Sairaj Dhople, "Fault Behavior of Inverter-based Resources: A Comparative Study for Grid-forming and Grid-following Control Paradigms," Proc. IEEE Annual Conference of the IEEE Industrial Electronics Society (IECON), Brussels, Belgium, Oct 2022.
Little Pradhan, Renuka Varma, D. Venkatramanan, Prince Kumar, Ned Mohan, Abhijit Kshirsagar, "Novel Carrier-reassignment PWM Techniques for Sub-Module Power Balancing in CHB Converters," Proc. IEEE Annual Conference of the IEEE Industrial Electronics Society (IECON), Brussels, Belgium, Oct 2022.
Nathan Baeckeland, D. Venkatramanan, Sairaj Dhople, and Michael Kleemann, "On the Distance Protection of Power Grids dominated by Grid-forming Inverters," Proc. IEEE PES Innovative Smart Grid Technologies, Novi Sad, Serbia, Oct 2022.
D. Venkatramanan, Manish K Singh, Olaoluwapo Ajala, Alejandro Domínguez-García, and Sairaj Dhople, "Integrated System Models for Networks with Generators & Inverters," Proc. 11th Bulk Power Systems Dynamics and Control Symposium (IREP-2022), Banff, Canada, July 2022.
Manish K Singh, D. Venkatramanan, Sairaj Dhople, Ben Kroposki, and G. Giannakis, "Unifying energy-management Problems for Inverter-based Power Networks", Proc. IFAC Conference on Networked Systems (NECSYS’2022), Zurich, Switzerland, July 2022.
D. Venkatramanan, Brian Johnson, and Sairaj Dhople, "Averaged Dynamic Model of Three-level NPC Grid-following Inverter for Examining Neutral-point Instability," Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Cartagena, Colombia, pp. 1-7, Nov 2021.
D. Venkatramanan, N. Vamanan, Brian Johnson, and Sairaj Dhople, "Quantitative Analysis of Third-harmonic Neutral-point Current, its Impacts, and Mitigation in Three-level NPC Inverters," Proc. IEEE Energy Conversion Congress and Exposition (ECCE), pp. 3563–3570, Vancouver, Canada, Oct 2021.
P. Kumar, D. Venkatramanan, A. Kshirsagar, and N. Mohan, "A Hybrid GaN + Si based Cascaded H-bridge Multi-level Inverter and PWM scheme for Improved Efficiency," Proc. IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada, pp. 296-301, Oct 2021.
V. N. Vipin, D. Venkatramanan, and N. Mohan, "Grid Integration of Heterogeneous Energy Sources/Loads using a Multi-port MMC with Independent Power Flow," Proc. Annual Conference of the IEEE Industrial Electronics Society (IECON), Toronto, Canada, pp. 1-6, July 2021.
D. Venkatramanan and Vinod John, "A Modified Common-Mode Filter with Enhanced Attenuation Performance in Single-Phase Grid-Tied Solar PV Inverters," Proc. IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE), Kochi, India, pp. 1-6, 2020.
P. Roja, D. Venkatramanan and Vinod John, "Optimal design of energy storage system using ultracapacitors for contingency power applications," Proc. IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE), Kochi, India, pp. 1-6, 2020.
D. Venkatramanan and Vinod John, "Dynamic Modeling and Analysis of Buck Converter based Solar PV Charge Controller for Improved MPPT Performance," Proc. IEEE Power Electronics, Drives. and Energy Systems Conference (PEDES), Chennai, India, pp. 1-6, Dec. 2018.
P. Roja, Venkatramanan D, Sridevi K, and Vinod John, "Design and Performance Evaluation of General Purpose Device Characterization Setup," Proc. IEEE Power Electronics, Drives. and Energy Systems Conference (PEDES), Chennai, India, pp. 1-6, Dec. 2018.
Aditya Zade, Venkatramanan D, and Vinod John, "Power Converter Based Impedance Emulation of Passive Loads for Anti-Islanding Tests," Proc. IEEE Power Electronics, Drives. and Energy Systems Conference (PEDES), Chennai, India, pp. 1-6, Dec. 2018.
D. Venkatramanan and Vinod John, "Supervisory Control Architecture for Standalone Solar Photo-Voltaic Power Generation System," Proc. IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, USA, pp. 6688-6695, Sept. 2018.
D. Venkatramanan and Vinod John, "Dynamic Phasor Modeling of SRF-PLL Based Grid-Tie Inverter Under Islanded Conditions," Proc. IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, USA, pp. 5670-5676, Sept. 2018.
D. Venkatramanan and Vinod John, "Modeling and analysis of passive networks using dynamic phasors for study of Islanded Inverters," Proc. IEEE International Transportation Electrification Conference (ITEC), Pune, India, pp. 1-6, Dec. 2017.
Rahul Mallik, D. Venkatramanan, and Vinod John, "Resistance emulation based fault ride-through in standalone voltage source inverters," Proc. IEEE International Transportation Electrification Conference (ITEC), Pune, India, pp. 1-6, Dec. 2017.
D. Venkatramanan, Anil Kumar Adapa, Kapil Upamanyu and Vinod John, "Low current switching behavior of IGBT and associated spurious tripping in inverters employing Vce de-saturation protection," Proc. IEEE Power Electronics, Drives. and Energy Systems Conference (PEDES), Trivandrum, India, pp. 1-6, Dec. 2016.
Kapil Upamanyu, D. Venkatramanan, Anil Kumar Adapa, and Vinod John, "Experimental study on the influence of dead-time on IGBT turn-on characteristics in an inverter leg at high and low currents," Proc. IEEE International Conference on Power Electronics (IICPE), Patiala, India, pp. 1-6, Dec. 2016.
D. Venkatramanan, Anil Kumar Adapa, and Vinod John, "Design and comparative study of discrete and module-based IGBT power converters," Proc. National Power Electronics Conference (NPEC), IIT Bombay, India, pp. 1-6, Dec. 2015.
Anil Kumar Adapa, D. Venkatramanan, and Vinod John, "Auxiliary subsystems of a General-Purpose IGBT Stack for high-performance laboratory power converters," Proc. National Power Electronics Conference (NPEC), IIT Bombay, India, pp. 1-6, Dec. 2015.
D. Venkatramanan and Vinod John, "A Resonant integrator based PLL and AC current controller for single phase grid connected PWM-VSI," Proc. National Power Systems Conference (NPSC), Hyderabad, India, Dec 2010.
Posters
P. Roja, D. Venkatramanan, and Vinod John, "Nonlinear Model-based Analysis of Ultracapacitor Stack for Accurate Sizing of Energy Storage Banks," EE Summer School, Department of Electrical Engineering, Institute of Science (IISc), Bangalore, 2022.
Manish K. Singh, D. Venkatramanan, Sairaj Dhople, Ben Kroposki, G. B. Giannakis, "Unifying Energy-management Problems for Inverter-based Power Networks," IFAC Conference on Networked Systems (NECSYS), Zurich, Switzerland, 2022.
D. Venkatramanan, Pallavi Bharadwaj, Anil K. Adapa, and Vinod John, "Power Conversion Technologies for High-performance AC Microgrids," National Power Engineering Research Scholars' Conference (NPERSC), Indian Institute of Technology, Madras (IITM), Chennai, 2018.
Aditya Zade, D. Venkatramanan, and Vinod John, "Power-converter-based Impedance Emulation of Passive Loads for Anti-islanding Tests," EE Research Symposium, Department of Electrical Engineering, Institute of Science (IISc), Bangalore, 2018.
D. Venkatramanan, and Vinod John, "Experimental Study on Islanding Behavior of Grid-tie Inverters," EE Research Symposium, Department of Electrical Engineering, Institute of Science (IISc), Bangalore, 2017.
D. Venkatramanan, Anil K. Adapa, and Vinod John, "High-performance General-purpose Power Converters for Renewable Energy Applications," Smart Village Initiative's Workshop on Mini-grid Technologies for India, Institute of Science (IISc), Bangalore, 2016.
Invited Seminars & Talks
"Supercapacitor Energy Storage: Past, Present & Future", at the Department of Electrical Engineering, IIT, Indore, Dec 2023. [pic]
"Inverter-based Resources for Green Power Grids: Operation and Control ", Guest Lecture (for course EE5741-Advanced Power Electronics), Department of Electrical & Computer Engineering, University of Minnesota (UMN), Apr 2023.
"Introduction & Circuit Modeling of Solar PV Resources", Guest Lecture (for course EE5741-Advanced Power Electronics), Department of Electrical & Computer Engineering, University of Minnesota (UMN), Mar 2023. [pic]
"Towards Next-generation Inverter-based Resources (IBRs) for Future Power Grids", Research Seminar (Virtual), Department of Electrical Engineering, Indian Institute of Technology, Madras (IITM), Chennai, Dec 2022.
"Common-mode Filter Design Considerations for Rooftop PV Systems serving EV loads", Technical Seminar, Workshop on Electrical Vehicle Technology: Opportunities and Challenges, Ramaiah Institute of Technology (RIT), Bangalore, Feb 2020. [pic]
"Reconfigurable Solar PV Grid-tied Inverter: An Enabling Technology for the Indian Grid Scenario", Research Seminar, IIST-IEEE Industry Student Branch Chapter Expert Lecture Series, Indian Institute of Science and Technology (IIST), Trivandrum, Jan 2020. [pic]
"Modeling, Analysis, and Control of Dual-mode Solar Inverter System", Research Seminar, Colorado Power Electronics Center (CoPEC), University of Colorado-Boulder, CO, USA, Sept 2018.
"Hybrid Grid-tie Inverters for Backup Power Applications", Technical Seminar Series, Department of Electrical Engineering, Indian Institute of Science (IISc), Bangalore, 2017.
"Integrated Magnetic Filter-Transformer Design for a Grid Connected Single-phase PWM-VSI", Technical Seminar, GE Global Research Center, John F Welch Technology Center, Bangalore, Feb 2013.
Patents
D. Venkatramanan and Vinod John, IISc, Central Power Research Institute (CPRI) and C-DAC, "A Recongurable Power Conversion System and Method for Enhanced Utilization of Renewable Energy", Indian Patent Appl. No. R20184034410, Full Patent Filed on: Nov. 2018.
🚩 karmanye vādhikāraste mā phaleṣhu kadāchana | mā karmaphalaheturbhūrma te sangostvakarmani || 🚩
Source: Holy Bhagavad Gītā
Transl: You only have the right to action (work or duty) but never to its fruits. Let not the fruits of action be your sole motive, nor let your attachment be to inaction.