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• Collaborative Research: A Scalable Sustainability-Based Approach to a Novel Demand Response Paradigm in the Emerging Smart Grid | Grant number:
• Collaborative Research: CyberTraining: Implementation: Small: Multidisciplinary Training of Learning, Optimization and Communications for Next-Generation Power Engineers | Grant number:
• MRI: Acquisition of a Microgrid Cyber-Physical Testbed for Advanced Energy Management Systems | Grant number:

• Development and validation of models to assess dynamic response of converter-dominated power systems across multiple spatiotemporal scales | Grant number:

Tim Hansen

• 2020 Graduate of the Last Decade, Milwaukee School of Engineering, Milwaukee, WI, received for accomplishments achieved of significant importance at an early stage of his career.
• 2019. IEEE-HKN, C. Holmes MacDonald Outstanding Teaching Award, received “for exceptional engagement of undergraduate students in electrical and computer engineering through pedagogical innovations, classroom technologies and curriculum development.”
• Jan. 2019. IEEE 9th Annual Computing and Communication Workshop and Conference, Best paper award, “Parallel implementation of AC optimal power flow and time-constrained optimal power flow using high-performance computing."
• Fall 2018. EPSCoR South Dakota Discovery Center Science Communication Fellow.
• Dec. 2017. 15th IEEE International Conference on Smart City, Best paper award, “Metrics-based assessment of sustainability in demand response."
• Summer 2017. Invited Visiting Faculty, Franche-Comte Electronics, Mechanics, Thermal Science, and Optics (FEMTO-ST), Energy Department, Universite de Technologie de Belfort-Montbeliard (UTBM), part of Universite Bourgogne Franche-Comte (UBFC), 90010 Belfort cedex, France.
• May 2016. IEEE International Conference on Electro/Information Technology (EIT’16), Best paper award, “Spatial-temporal stochasticity of electric vehicles in an integrated traffic and power system," (out of approximately 125 papers).

• M. Rauniyar, N. Bhujel, T.M. Hansen, R. Fourney, H.M. Rekabdarkolaee, R. Tonkoski, P. Cicilio, M. Shirazi and U. Tamrakar, "Diesel Generator Model Development and Validation using Moving Horizon Estimation," IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, pp. 1-6, DOI: 10.1109/IECON48115.2021.9589981, 2021
• S. Subedi, N. Guruwacharya, R. Fourney, H.M. Rekabdarkolaee, R. Tonkoski, T.M. Hansen,U. Tamrakar and P. Cicilio, “Computationally Efficient Partitioned Modeling of Inverter Dynamics with Grid Support Functions,” in IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, pp. 1–6, 2021
• C. Shah, P. Cicilio, M. Shirazi, D. Light, D. Broderson, R. Wies, M. Rauniyar, R. Tonkoski and T.M. Hansen, "Model Development of Diesel Generator using Volts/Hertz Limiter and Comparing Governor Models for Remote Islanded Microgrids," IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, pp. 1-6, DOI: 10.1109/IECON48115.2021.9589688, 2021
• T. Hussain, S. Suryanarayanan, T.M. Hansen and SM. Shafiul Alam, “A Computationally Improved Heuristic Algorithm for Transmission Switching Using Line Flow Thresholds for Load Shed Reduction,” accepted In: Proc. IEEE PES PowerTech, Madrid, 2021
• N. Bhujel, A. Rai, U. Tamrakar, T.M. Hansen and R. Tonkoski, “A Model Predictive Approach for Voltage Support in Microgrids using Energy Storage Systems,” IEEE Power and Energy Society General Meeting, 2021
• N. Bhujel, U. Tamrakar, T.M. Hansen, R.H. Byrne and R. Tonkoski, “Optimization-Based Estimation of Microgrid Equivalent Parameters for Voltage and Frequency Dynamics,” in IEEE Powertech, 2021
• N. Guruwacharya, N. Bhujel, T.M. Hansen, S. Suryanarayanan, R. Tonkoski, U. Tamrakar and F. Wilches-Bernal, “Modeling Inverters with Grid Support Functions for Power System Dynamics Studies,” in 2021 IEEE Power Energy Society Innovative Smart Grid Technologies Conference, pp. 1–5, 2021
• S. Subedi, M. Rauniyar, S. Ishaq, T.M. Hansen, R. Tonkoski, M. Shirazi, R. Wies and P. Cicilio, “Review of Methods to Accelerate Electromagnetic Transient Simulation of Power Systems,” IEEE Access, vol. 9, pp. 89 714–89 731, 2021
• C. Shah, J.D. Vasquez-Plaza, D.D. Campo-Ossa, J.F. Patarroyo-Montenegro, N. Guruwacharya, N. Bhujel, R.D. Trevizan, F.A. Rengifo, M. Shirazi, R. Tonkoski, R. Wies, T. M. Hansen and P. Cicilio, “Review of Dynamic and Transient Modeling of Power Electronic Converters for Converter Dominated Power Systems,” IEEE Access, vol. 9, pp. 82 094–82 117, 2021
• N. Guruwacharya, N. Bhujel, U. Tamrakar, M. Rauniyar, S. Subedi, S.E. Berg, T.M. Hansen and R. Tonkoski, “Data-Driven Power Electronic Converter Modeling for Low Inertia Power System Dynamic Studies,” in 2020 IEEE Power Energy Society General Meeting (PESGM), pp. 1–5, 2020
• U. Tamrakar, N. Guruwacharya, N. Bhujel, F. Wilches-Bernal, T.M. Hansen and R. Tonkoski, “Inertia Estimation in Power Systems Using Energy Storage and System Identification Techniques,” in 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), pp. 577–582, 2020
• R. Mahat, K. Duwadi, F.B.D. Reis, R. Fourney, R. Tonkoski and T.M. Hansen, “Techno-Economic Analysis of PV Inverter Controllers for Preventing Overvoltage in LV Grids,” in IEEE Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) 2020, Sorrento, Italy, 6 pages, accepted 2020
• N. Bhujel, U. Tamrakar, T.M. Hansen, R.H. Byrne, and R. Tonkoski, “Model Predictive Integrated Voltage and Frequency Support in Microgrids,” in North American Power Symposium (NAPS) 2020, Arizona, USA, 6 pages, 2020
• M. Rauniyar, S. Berg, S. Subedi, T.M. Hansen, R. Fourney, R. Tonkoski and U. Tamrakar, “Evaluation of Probing Signals for Implementing Moving Horizon Inertia Estimation in Microgrids,” in 52nd North American Power Symposium (NAPS), 2021, pp. 1–6, 2020
• A. Poudyal, U. Tamrakar, R.D. Trevizan, R. Fourney, R. Tonkoski and T.M. Hansen, “Convolutional Neural Network-based Inertia Estimation using Local Frequency Measurements,” in North American Power Symposium 2020, Arizona, USA, 2020
• P. Adhikari, S. Prajapati, I. Tamrakar, U. Tamrakar and R. Tonkoski, “Parallel Operation of Virtual Synchronous Machines with Frequency Droop Control,” in 2017 IEEE International Conference on Power Systems, pp. 116–120, December 2018
• A. Luna, , U. Tamrakar, T.M. Hansen and R. Tonkoski, “Frequency Response in Grids with High Penetration of Renewable Energy Source,” in 2018 North American Power Symposium, pp. 1–5, September 2018
• A. Bajracharya, M.R.A. Khan, S. Michael and R. Tonkoski, “Forecasting Data Center Load Using Hidden Markov Model,” in 2018 North American Power Symposium, pp. 1–5, September 2018
• M.H. Ullah, S. Chalise, U. Tamrakar and R. Tonkoski, “Impact of Battery Operating Conditions on Remote Microgrid’s Energy Management System,” in 2018 IEEE Power Energy Society General Meeting, pp. 1–5, 2018
• B. Bhattarai, S. Paudyal, K. Myers, R. Turk and R. Tonkoski, “Model Predictive Optimal Dispatch of Behind-the-Meter Energy Storage Considering On-Site Generation Uncertainties,” in 2018 IEEE Power Energy Society General Meeting, pp. 1–5, 2018
• S. Paudyal, B. Bhattarai, R. Tonkoski, S. Dahal and O. Ceylan, “Comparative Study of Active Power Curtailment Methods on PVs for Preventing Overvoltage on Distribution Feeders,” in 2018 IEEE Power Energy Society General Meeting, pp. 1–5, 2018
• P. Tandukar, L. Bajracharya, T.M. Hansen, R. Fourney, U. Tamrakar and R. Tonkoski, “Real-Time Operation of a Data Center as Virtual Power Plant Considering Battery Lifetime,” in SPEEDAM 2018, pp. 1–5, 2018
• U. Tamrakar, A. Luna, F.B. dos Reis, D. Shrestha, R. Fourney and R. Tonkoski, “Virtual Inertia Emulation Using Commercial Off-the-Shelf Inverters,” in 2018 IEEE Energy Conversion Congress and Exposition (ECCE), pp. 1–5, 2018
• M. Maharjan, P. Tandukar, A. Bajracharya, F.B. dos Reis, U. Tamrakar, D. Shrestha, F.S. dos Reis and R. Tonkoski, “SEPIC Converter with Wide Bandgap Semiconductor for PV Battery Charger,” in 2017 Brazilian Power Electronics Conference, pp. 1–5, November 2017
• U. Tamrakar, N. Malla, D. Shrestha, Z. Ni and R. Tonkoski, “Design of Online Supplementary Adaptive Dynamic Programming for Current Control in Power Electronic Systems,” in 2017 IEEE Energy Conversion Congress and Exposition, pp. 3038–3043, October 2017
• M. Maharjan, U. Tamrakar, S. Bajagain, T.M. Hansen and R. Tonkoski, “A Steady-State Equivalent Model of Solid State Transformers for Voltage Regulation Studies,” in 2017 IEEE Power Energy Society General Meeting, pp. 1–5, July 2017
• P. Tandukar, A. Shakya, T.M. Hansen, R. Fourney, U. Tamrakar and R. Tonkoski, “Genitor-Based Energy Management System for Remote Microgrids Considering Battery Lifetime,” in Electrical Energy Storage Applications and Technologies (EESAT) Conference, pp. 1–5, 2017

• Y. Zheng, B. Celik, S. Suryanarayanan, A.A. Maciejewski, H.J. Siegel and T.M. Hansen, IET Smart Grid, May 2021
• F.B.D. Reis, T.M. Hansen and R. Tonkoski, “Synthetic Residential Load Models for Smart City Energy Management Simulations,” The Institute of Engineering and Technology (IET) Smart Grid, vol. 3, pp. 342–354, May 2020
• B.R. Shrestha, U. Tamrakar, T.M. Hansen, B.P. Bhattarai, S. James and R. Tonkoski, “Efficiency and Reliability Analyses of AC and 380v DC Distribution in Data Centers,” IEEE Access, accepted for publication, 2018
• N. Malla, U. Tamrakar, D. Shrestha, Z. Ni, and R. Tonkoski, “Online Learning Control for Harmonics Reduction Based on Current Controlled Voltage Source Power Inverters,” IEEE/CAA Journal of Automatica Sinica, vol. 4, pp. 447–457, July 2017
• U. Tamrakar, D. Shrestha, M. Maharjan, B.P. Bhattarai, T.M. Hansen and R. Tonkoski, “Virtual Inertia: Current Trends and Future Directions,” Applied Sciences, vol. 7, p. 654, June 2017
• M.A. Torres, R. Tonkoski and C.R. Baier, “Operating Region of a Genset-Based Virtual Synchronous Generator,” IEEE Access 2017, vol. 4, pp. 1–11, accepted 2016

• T. Hussain, S. Suryanarayanan, and SM.S. Alam, “Hybridized Transmission Switching for Contingency Management in Electric Power Systems,” International patent application: PCT/US21/26540, patent pending, filed April 9, 2021