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Ujjwol Tamrakar
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Microgrid stability definitions, analysis, and examples
M Farrokhabadi, CA Canizares, JW Simpson-Porco, E Nasr, L Fan, ...
IEEE Transactions on Power Systems 35 (1), 13-29, 2019
9282019
Virtual inertia: Current trends and future directions
U Tamrakar, D Shrestha, M Maharjan, BP Bhattarai, TM Hansen, ...
Applied sciences 7 (7), 654, 2017
8792017
Review of challenges and research opportunities for voltage control in smart grids
H Sun, Q Guo, J Qi, V Ajjarapu, R Bravo, J Chow, Z Li, R Moghe, ...
IEEE Transactions on Power Systems 34 (4), 2790-2801, 2019
5462019
Improving transient stability of photovoltaic-hydro microgrids using virtual synchronous machines
U Tamrakar, D Galipeau, R Tonkoski, I Tamrakar
2015 IEEE Eindhoven PowerTech, 1-6, 2015
1062015
Efficiency and reliability analyses of AC and 380 V DC distribution in data centers
BR Shrestha, U Tamrakar, TM Hansen, BP Bhattarai, S James, ...
IEEE access 6, 63305-63315, 2018
792018
Multiarea inertia estimation using convolutional neural networks and federated learning
A Poudyal, U Tamrakar, RD Trevizan, R Fourney, R Tonkoski, TM Hansen
IEEE Systems Journal 16 (4), 6401-6412, 2021
652021
Optimization-based fast-frequency estimation and control of low-inertia microgrids
U Tamrakar, DA Copp, T Nguyen, TM Hansen, R Tonkoski
IEEE Transactions on Energy Conversion 36 (2), 1459-1468, 2020
522020
Model predictive frequency control of low inertia microgrids
U Tamrakar, TM Hansen, R Tonkoski, DA Copp
2019 IEEE 28th International Symposium on Industrial Electronics (ISIE …, 2019
502019
Real-time estimation of microgrid inertia and damping constant
U Tamrakar, DA Copp, TA Nguyen, TM Hansen, R Tonkoski
IEEE Access 9, 114523-114534, 2021
382021
Data-driven power electronic converter modeling for low inertia power system dynamic studies
N Guruwacharya, N Bhujel, U Tamrakar, M Rauniyar, S Subedi, SE Berg, ...
2020 IEEE Power & Energy Society General Meeting (PESGM), 1-5, 2020
362020
Evaluation of probing signals for implementing moving horizon inertia estimation in microgrids
M Rauniyar, S Berg, S Subedi, TM Hansen, R Fourney, R Tonkoski, ...
2020 52nd North American Power Symposium (NAPS), 1-6, 2021
312021
Convolutional neural network-based inertia estimation using local frequency measurements
A Poudyal, R Fourney, R Tonkoski, TM Hansen, U Tamrakar, RD Trevizan
2020 52nd North American Power Symposium (NAPS), 1-6, 2021
302021
Comparative analysis of current control techniques to support virtual inertia applications
U Tamrakar, D Shrestha, N Malla, Z Ni, TM Hansen, I Tamrakar, ...
applied sciences 8 (12), 2695, 2018
302018
Online learning control for harmonics reduction based on current controlled voltage source power inverters
N Malla, U Tamrakar, D Shrestha, Z Ni, R Tonkoski
IEEE/CAA Journal of Automatica Sinica 4 (3), 447-457, 2017
292017
Experimental verification of virtual inertia in diesel generator based microgrids
D Shrestha, U Tamrakar, Z Ni, R Tonkoski
2017 IEEE International Conference on Industrial Technology (ICIT), 95-100, 2017
292017
Reduction of energy consumption of virtual synchronous machine using supplementary adaptive dynamic programming
D Shrestha, U Tamrakar, N Malla, Z Ni, R Tonkoski
2016 IEEE International Conference on Electro Information Technology (EIT …, 2016
292016
Efficiency analysis of AC coupled and DC coupled microgrids considering load profile variations
HR Atia, A Shakya, P Tandukar, U Tamrakar, TM Hansen, R Tonkoski
2016 IEEE international conference on electro information technology (EIT …, 2016
292016
Frequency response in grids with high penetration of renewable energy sources
A Luna, U Tamrakar, TM Hansen, R Tonkoski
2018 North American Power Symposium (NAPS), 1-5, 2018
252018
Current control techniques for applications in virtual synchronous machines
U Tamrakar, R Tonkoski, Z Ni, TM Hansen, I Tamrakar
2016 IEEE 6th International Conference on Power Systems (ICPS), 1-6, 2016
242016
Comparative analysis of state and parameter estimation techniques for power system frequency dynamics
B Poudel, P Aslami, T Aryal, N Bhujel, A Rai, M Rauniyar, ...
2022 International Symposium on Power Electronics, Electrical Drives …, 2022
232022
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