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Abusalah, A., Saad, O., Mahseredjian, J., Karaagac, U., & Kocar, I. (2020, August). Accelerated Sparse Matrix Based Computation of Electromagnetic Transients [Paper]. IEEE-Power-and-Energy-Society General Meeting (PESGM 2020). External link
Abusalah, A., Saad, O., Mahseredjian, J., Karaagac, U., & Kocar, I. (2020). Accelerated Sparse Matrix-Based Computation of Electromagnetic Transients. IEEE Open Access Journal of Power and Energy, 7, 13-21. External link
Belqorchi, A., Karaagac, U., Mahseredjian, J., & Kamwa, I. (2019). Standstill Frequency Response Test and Validation of a Large Hydrogenerator. IEEE Transactions on Power Systems, 34(3), 2261-2269. External link
Chang, Y., Mahseredjian, J., Kocar, I., & Karaagac, U. (2022, June). Analytical characterization of DFIG response to asymmetrical voltage dips for efficient design [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Published in Electric Power Systems Research, 211. External link
Chang, Y., Zhao, M., Kocar, I., & Karaagac, U. (2022, September). Transient Analysis and Control Solutions for DFIG-based Wind Turbine Generators to Improve FRT Performance under Asymmetrical Faults [Paper]. 9th International Conference on Power Electronics Systems and Applications (PESA 2022), Hong Kong, Hong Kong (6 pages). External link
Chang, Y., Kocar, I., Hu, J., Karaagac, U., Chan, K. W., & Mahseredjian, J. (2021). Coordinated Control of DFIG Converters to Comply with Reactive Current Requirements in Emerging Grid Codes. Journal of Modern Power Systems and Clean Energy, 12 pages. External link
Cai, L., Yin, H., Lan, Y., Lan, T., Wu, X., Karaagac, U., Mahseredjian, J., Eckel, H.-G., & Weber, H. (2020, July). Analysis of impact of harmonic disturbances on the mechanical system of wind turbine [Paper]. 21st IFAC World Congress 2020, Berlin, Germany. Published in IFAC-PapersOnLine, 53(2). External link
Cetindag, B., Kocar, I., Gueye, A., & Karaagac, U. (2017). Modeling of Step Voltage Regulators in Multiphase Load Flow Solution of Distribution Systems Using Newton's Method and Augmented Nodal Analysis. Electric Power Components and Systems, 45(15), 1667-1677. External link
Cai, L. J., Erlich, I., Karaagac, U., & Mahseredjian, J. (2015, July). Stable operation of doubly-fed induction generator in weak grids [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). External link
Furlaneto, R. M., Kocar, I., Grilo-Pavani, A., Karaagac, U., Haddadi, A., & Farantatos, E. (2021). Short circuit network equivalents of systems with inverter-based resources. Electric Power Systems Research, 199, 7 pages. External link
Farantatos, E., Karaagac, U., Saad, H., & Mahseredjian, J. (2013, August). Short-circuit current contribution of converter interfaced wind turbines and the impact on system protection [Paper]. IREP Symposium on Bulk Power System Dynamics and Control (IREP 2013), Rethymno, Greece. External link
Ghafouri, M., Karaagac, U., Mahseredjian, J., Kocar, I., & Lei, M. (2023). Design of a robust and practicable SSI damping controller using H∞ technique for series compensated DFIG-based wind farms. Energy Reports, 9, 647-655. External link
Ghafouri, M., Karaagac, U., Kocar, I., Xu, Z., & Farantatos, E. (2021). Analysis and mitigation of the communication delay impacts on wind farm central SSI damping controller. IEEE Access, 9, 105641-105650. Available
Ghafouri, M., Karaagac, U., Karimi, H., & Mahseredjian, J. (2019). Robust subsynchronous interaction damping controller for DFIG-based wind farms. Journal of Modern Power Systems and Clean Energy, 7(6), 1663-1674. Available
Ghafouri, M., Karaagac, U., Mahseredjian, J., & Karimi, H. (2019). SSCI damping controller design for series compensated DFIG based wind parks considering implementation challenges. IEEE Transactions on Power Systems, 34(4), 2644-2653. External link
Ghafouri, M., Karaagac, U., Karimi, H., Jensen, S., Mahseredjian, J., & Faried, S. O. (2017). An LQR Controller for Damping of Subsynchronous Interaction in DFIG-Based Wind Farms. IEEE Transactions on Power Systems, 32(6), 4934-4942. External link
Gras, H., Mahseredjian, J., Rutovic, E., Karaagac, U., Haddadi, A., Saad, O., Kocar, I., & El-Akoum, A. (2017, June). A new hierarchical approach for modeling protection systems in EMT-type software [Paper]. International Conference on Power Systems Transients (IPST 2017), Seoul, Republic of Korea (6 pages). External link
Ghafouri, M., Karaagac, U., Karimi, H., & Mahseredjian, J. (2016, July). Sub synchronous resonance dapming in DFIG-based wind farms using optimal control [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2016), Boston, MA (5 pages). External link
Gao, X., Karaagac, U., Faried, S. O., & Mahseredjian, J. (2014, October). On the use of wind energy conversion systems for mitigating subsynchronous resonance and subsynchronous interaction [Paper]. IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), Istanbul, Turkey (6 pages). External link
Hassani, R., Mahseredjian, J., Tshibungu, T., & Karaagac, U. (2022, June). Evaluation of time-domain and phasor-domain methods for power system transients [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (8 pages). Published in Electric Power Systems Research, 212. External link
Haddadi, A., Farantatos, E., Kocar, I., & Karaagac, U. (2021). Impact of Inverter Based Resources on System Protection. Energies, 14(4), 1050 (21 pages). External link
Haddadi, A., Zhao, M., Kocar, I., Karaagac, U., Chan, K. W., & Farantatos, E. (2021). Impact of Inverter-Based Resources on Negative Sequence Quantities-Based Protection Elements. IEEE Transactions on Power Delivery, 36(1), 289-298. External link
Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (2020, June). Negative sequence quantities-based protection under inverter-based resources – Challenges and impact of the German grid code [Paper]. 21st Power Systems Computation Conference (PSCC 2020) (6 pages). Published in Electric Power Systems Research, 188. External link
Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (2020, August). Performance of phase comparison line protection under inverter-based resources and impact of the german grid code [Paper]. 2020 IEEE Power and Energy Society General Meeting (PESGM 2020), Montréal, Qc, Canada (5 pages). External link
Haddadi, A., Kocar, I., Kauffmann, T., Karaagac, U., Farantatos, E., & Mahseredjian, J. (2019). Field validation of generic wind park models using fault records. Journal of Modern Power Systems and Clean Energy, 7(4), 826-836. Available
Haddadi, A., Kocar, I., Karaagac, U., Gras, H., & Farantatos, E. (2019). Impact of Wind Generation on Power Swing Protection. IEEE Transactions on Power Delivery, 34(3), 1118-1128. External link
Haddadi, A., Cai, M., Karaagac, U., & Mahseredjian, J. (2019, June). Power system test cases for EMT-type simulation studies [Paper]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). External link
Jacobs, K., Seyedi, Y., Meng, L., Karaagac, U., & Mahseredjian, J. (2023). A comparative study on frequency scanning techniques for stability assessment in power systems incorporating wind parks. Electric Power Systems Research, 220, 8 pages. External link
Javid, Z., Karaagac, U., & Kocar, I. (2022). Improved Laplacian Matrix based power flow solver for DC distribution networks. Energy Reports, 8(S8), 528-537. External link
Javid, Z., Karaagac, U., Kocar, I., & Chan, K. W. (2021). Laplacian matrix-based power flow formulation for LVDC grids with radial and meshed configurations. Energies, 14(7), 21 pages. Available
Kim, J., Mahseredjian, J., Karaagac, U., Lesage-Landry, A., Grilo, A. P., & Kim, C.-H. (2024, November). State-Space Models for Control Interaction Analysis of DFIG and FSC Wind Parks [Paper]. 50th Annual Conference of the IEEE Industrial Electronics Society (IECON 2024), Chicago, IL, USA. Published in IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society. External link
Karaagac, U., Kocar, I., Mahseredjian, J., Cai, L., & Javid, Z. (2021, June). STATCOM integration into a DFIG-based wind park for reactive power compensation and its impact on wind park high voltage ride-through capability [Paper]. International Conference on Power Systems Transients (IPST 2021), Belo Horizonte, Brazil (8 pages). Published in Electric Power Systems Research, 199. External link
Karaagac, U., Mahseredjian, J., Gagnon, R., Gras, H., Saad, H., Cai, L., Kocar, I., Haddadi, A., Farantatos, E., Bu, S., Chan, K., & Wang, L. (2020, August). A Generic EMT-Type Model for Wind Parks with Permanent Magnet Synchronous Generator Full Size Converter Wind Turbines [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). External link
Karaagac, U., Mahseredjian, J., Gagnon, R., Gras, H., Saad, H., Cai, L., Kocar, I., Haddadi, A., Farantatos, E., Bu, S., Chan, K. W., & Wang, L. (2019). A generic EMT-type model for wind parks with permanent magnet synchronous generator full size converter wind turbines. IEEE Power and Energy Technology Systems Journal, 6(3), 131-141. External link
Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Farantatos, E., Haddadi, A., & Mahseredjian, J. (2019). Short-Circuit Model for Type-IV Wind Turbine Generators with Decoupled Sequence Control. IEEE Transactions on Power Delivery, 34(5), 1998-2007. External link
Kocar, I., Karaagac, U., Mahseredjian, J., & Cetindag, B. (2018). Multiphase load-flow solution and initialization of induction machines. IEEE Transactions on Power Systems, 33(2), 1650-1658. External link
Kocar, I., Karaagac, U., Mahseredjian, J., & Cetindag, B. B. (2018, August). Multiphase Load-flow Solution and Initialization of Induction Machines [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, OR, USA (1 page). External link
Karaagac, U., Mahseredjian, J., Jensen, S., Gagnon, R., Fecteau, M., & Kocar, I. (2018). Safe operation of DFIG based wind parks in series compensated systems. IEEE Transactions on Power Delivery, 33(2), 709-718. External link
Karaagac, U., Mahseredjian, J., Jensen, S., Gagnon, R., Fecteau, M., & Kocar, I. (2018, August). Safe operation of DFIG based wind parks in series compensated systems [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, Oregon, USA. External link
Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Mahseredjian, J., & Farantatos, E. (2017). An Accurate Type III Wind Turbine Generator Short Circuit Model for Protection Applications. IEEE Transactions on Power Delivery, 32(6), 2370-2379. External link
Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Mahseredjian, J., & Farantatos, E. (2017, July). An accurate type III wind turbine generator short circuit model for protection applications [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). External link
Karaagac, U., Mahseredjian, J., Cai, L., & Saad, H. (2017, July). Offshore wind farm modeling accuracy and efficiency in MMC-based multi-terminal HVDC connection [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). External link
Karaagac, U., Mahseredjian, J., & Cai, L. (2015, June). Ferroresonance conditions in wind parks [Paper]. 11th International Conference on Power Systems Transients (IPST), Cavtat, Croatia. Published in Electric Power Systems Research, 138. External link
Karaagac, U., Mahseredjian, J., Cai, L., & Saad, H. (2016). Offshore Wind Farm Modeling Accuracy and Efficiency in MMC-Based Multi-Terminal HVDC Connection. IEEE Transactions on Power Delivery, 32(2), 617-627. External link
Karaagac, U., Mahseredjian, J., Kocar, I., Soykan, G., & Saad, O. (2016). Partial refactorization based machine modeling techniques for electromagnetic transients. IEEE Transactions on Power Delivery, 31(5), 2370-2378. External link
Kauffmann, T., Karaagac, U., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (2015, July). Phasor domain modeling of Type III wind turbine generator for protection studies [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). External link
Karaagac, U., Kauffmann, T., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (2015, July). Phasor domain modeling of type-IV wind turbine generator for protection studies [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). External link
Karaagac, U., Faried, S. O., Mahseredjian, J., & Edris, A.-A. (2014). Coordinated control of wind energy conversion systems for mitigating subsynchronous interaction in DFIG-based wind farms. IEEE Transactions on Smart Grid, 5(5), 2440-2449. External link
Kocar, I., Mahseredjian, J., Karaagac, U., Soykan, G., & Saad, O. (2014, July). Multiphase load-flow solution for large-scale distribution systems using MANA [Abstract]. IEEE PES General Meeting: Conference & Exposition, National Harbor, MD (1 page). External link
Kocar, I., Mahseredjian, J., Karaagac, U., Soykan, G., & Saad, O. (2014). Multiphase load-flow solution for large-scale distribution systems using MANA. IEEE Transactions on Power Delivery, 29(2), 908-915. External link
Karaagac, U., Mahseredjian, J., Saad, H., Jensen, S., & Cai, L. (2013, July). Examination of Fault-Ride-Through methods for off-shore wind farms with VSC-based multi-therminal HVDC [Paper]. International Conference on Power Systems Transients (IPST 2013), Vancouver, BC, Canada (6 pages). External link
Karaagac, U., Gras, H., Mahseredjian, J., El-Akoum, A., & Legrand, X. (2013, July). Synchronous machine exciter circuit model in a simultaneous field winding interface [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2013), Vancouver, BC, Canada (5 pages). External link
Karaagac, U. (2011). Synchronous Machine Modeling Precision and Efficiency in Electromagnetic Transients [Ph.D. thesis, École Polytechnique de Montréal]. Available
Karaagac, U., Mahseredjian, J., & Saad, O. (2011). An efficient synchronous machine model for electromagnetic transients. IEEE Transactions on Power Delivery, 26(4), 2456-2465. External link
Karaagac, U., Mahseredjian, J., & Dennetière, S. (2009, July). Emtp simulation of synchronous machine from standstill to synchronization [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2009), Calgary, Alberta, Canada. External link
Meng, L., Karaagac, U., Grilo, A. P., Mahseredjian, J., & Jacobs, K. (2025). Examination of EMT-Type Impedance Scanning Techniques for Small Signal Stability Assessment of Inverter Based Resources. IEEE Transactions on Power Delivery, 13 pages. External link
Meng, L., Karaagac, U., Jacobs, K., Xue, T., Mahseredjian, J., & Morais Furlaneto, R. (2024, November). Comparative Analysis of Impedance-Based Stability Assessment Methods for Inverter-Based Resources [Paper]. 50th Annual Conference of the IEEE Industrial Electronics Society (IECON 2024), Chicago, IL, USA. External link
Meng, L., Karaagac, U., Ghafouri, M., Stepanov, A. B., Mahseredjian, J., Chan, K., & Kocar, I. (2023). A New Control Interaction Phenomenon in Large-Scale Type-4 Wind Park. IEEE Access, 11, 11 pages. Available
Meng, L., Karaagac, U., & Jacobs, K. (2023). A new sequence domain EMT-level multi-input multi-output frequency scanning method for inverter based resources. Electric Power Systems Research, 220, 7 pages. External link
Meng, L., Karaagac, U., Ghafouri, M., Stepanov, A., & Mahseredjian, J. (2023). A new stationary frame multi-input multi-output EMT-level frequency scanning method for inverter based resources. Energy Reports, 9, 748-756. External link
Ming, C., Mahseredjian, J., Karaagac, U., El-Akoum, A., & Xiaopeng, F. (2019). Functional mock-up interface based parallel multistep approach with signal correction for electromagnetic transients simulations. IEEE Transactions on Power Systems, 34(3), 2482-2484. External link
Mahseredjian, J., Karaagac, U., Dennetière, S., & Saad, H. (2015). Simulation of electromagnetic transients with EMTP-RV. In Numerical Analysis of Power System Transients and Dynamics (pp. 103-34). External link
Mahseredjian, J., Kocar, I., & Karaagac, U. (2014). Solution Techniques for Electromagnetic Transients in Power Systems. In Transient Analysis of Power Systems: Solution Techniques, Tools and Applications (pp. 9-38). External link
Mahseredjian, J., Dufour, C., Karaagac, U., & Bélanger, J. (2011, June). Simulation of power system transients using state-space grouping through nodal analysis [Paper]. International Conference on Power Systems Transients (IPST 2011), Delft, Netherlands (7 pages). External link
Ouyang, C., Morais Furlaneto, R., Meng, L., Jacobs, K., Xue, T., Karaagac, U., & Mahseredjian, J. (2024, November). Computationally Efficient Impedance Scanning Approach for Inverter-based Resources [Paper]. 50th Annual Conference of the IEEE Industrial Electronics Society (IECON 2024), Chicago, IL, USA (7 pages). Published in IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society. External link
Rashidirad, N., Mahseredjian, J., Kocar, I., Karaagac, U., & Saad, O. (2023). Mana-based load-flow solution for islanded AC microgrids. IEEE Transactions on Smart Grid, 14(2), 889-898. External link
Rashidirad, N., Mahseredjian, J., Kocar, I., Karaagac, U., & Saad, O. (2023, July). MANA-based load-flow solution for islanded AC microgrids [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2023), Orlando, FL, USA (1 page). External link
Rashidirad, N., Mahseredjian, J., Kocar, I., & Karaagac, U. (2023). Unified MANA-based load-flow for multi-frequency hybrid AC/DC multi-microgrids. Electric Power Systems Research, 220, 7 pages. External link
Seyedi, Y., Karaagac, U., Mahseredjian, J., Haddadi, A., Jacobs, K., & Karimi, H. (2022). Detailed modeling of inverter-based resources. In Advances in Power System Modelling, Control and Stability Analysis (pp. 175-203). External link
Seyedi, Y., Mahseredjian, J., Karimi, H., Karaagac, U., & Schwanka Trevisan, A. (2022, June). Fast detection of SSR conditions for wind parks in series-compensated transmission systems [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Published in Electric Power Systems Research, 211. External link
Seyedi, Y., Karaagac, U., Mahseredjian, J., & Karimi, H. (2022). Scanning methods for stability analysis of inverter-based resources. In Advances in Power System Modelling, Control and Stability Analysis (2nd ed., pp. 663-94). External link
Stepanov, A., Mahseredjian, J., Karaagac, U., & Saad, H. (2021). Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations. IEEE Transactions on Power Delivery, 36(2), 803-813. External link
Stepanov, A., Mahseredjian, J., Karaagac, U., & Saad, H. (2021, July). Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations [Paper]. 2021 IEEE Power and Energy Society General Meeting (PESGM 2021), Washington, D.C., USA (1 page). External link
Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2021). Spurious power and its elimination in modular multilevel converter models. Electric Power Systems Research, 190, 9 pages. External link
Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2020). Spurious Power Losses in Modular Multilevel Converter Arm Equivalent Model. IEEE Transactions on Power Delivery, 35(1), 205-213. External link
Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2020, August). Spurious Power Losses in Modular Multilevel Converter Arm Equivalent Model [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). External link
Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2019). Initialization of Modular Multilevel Converter Models for the Simulation of Electromagnetic Transients. IEEE Transactions on Power Delivery, 34(1), 290-300. External link
Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2019, June). Spurious power generation in arm equivalent model variants of modular multilevel converter [Paper]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). External link
Xue, T., Karaagac, U., Ghafouri, M., & Kocar, I. (2025). Review on DFIG Supplementary SSI Damping Controllers: Design, Development, and Directions. IEEE Transactions on Power Delivery, 1-13. External link
Xue, T., Karaagac, U., Kocar, I., Vavdareh, M. B., & Ghafouri, M. (2023, December). Machine Learning Basics and Potential Applications in Power Systems [Paper]. 4th International Conference on Electrical, Communication and Computer Engineering (ICECCE 2023), Dubai, United arab emirates (7 pages). External link
Xue, T., Karaagac, U., Xue, H., & Mahseredjian, J. (2023). Re-examination of small-signal instability in weak grid-connected voltage source converters. Electric Power Systems Research, 223, 7 pages. External link
