Documents dont l'auteur est "Karaagac, Ulas"

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Nombre de documents: 67

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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. Lien externe

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Chang, Y., Mahseredjian, J., Kocar, I., & Karaagac, U. (juin 2022). Analytical characterization of DFIG response to asymmetrical voltage dips for efficient design [Communication écrite]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Publié dans Electric Power Systems Research, 211. Lien externe

Chang, Y., Zhao, M., Kocar, I., & Karaagac, U. (septembre 2022). Transient Analysis and Control Solutions for DFIG-based Wind Turbine Generators to Improve FRT Performance under Asymmetrical Faults [Communication écrite]. 9th International Conference on Power Electronics Systems and Applications (PESA 2022), Hong Kong, Hong Kong (6 pages). Lien externe

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. Lien externe

Cai, L., Yin, H., Lan, Y., Lan, T., Wu, X., Karaagac, U., Mahseredjian, J., Eckel, H.-G., & Weber, H. (juillet 2020). Analysis of impact of harmonic disturbances on the mechanical system of wind turbine [Communication écrite]. 21st IFAC World Congress 2020, Berlin, Germany. Publié dans IFAC-PapersOnLine, 53(2). Lien externe

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. Lien externe

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Farantatos, E., Karaagac, U., Saad, H., & Mahseredjian, J. (août 2013). Short-circuit current contribution of converter interfaced wind turbines and the impact on system protection [Communication écrite]. IREP Symposium on Bulk Power System Dynamics and Control (IREP 2013), Rethymno, Greece. Lien externe

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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. Lien externe

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. Disponible

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. Disponible

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. Lien externe

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. Lien externe

Gras, H., Mahseredjian, J., Rutovic, E., Karaagac, U., Haddadi, A., Saad, O., Kocar, I., & El-Akoum, A. (juin 2017). A new hierarchical approach for modeling protection systems in EMT-type software [Communication écrite]. International Conference on Power Systems Transients (IPST 2017), Seoul, Republic of Korea (6 pages). Lien externe

Ghafouri, M., Karaagac, U., Karimi, H., & Mahseredjian, J. (juillet 2016). Sub synchronous resonance dapming in DFIG-based wind farms using optimal control [Communication écrite]. IEEE Power and Energy Society General Meeting (PESGM 2016), Boston, MA (5 pages). Lien externe

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Hassani, R., Mahseredjian, J., Tshibungu, T., & Karaagac, U. (juin 2022). Evaluation of time-domain and phasor-domain methods for power system transients [Communication écrite]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (8 pages). Publié dans Electric Power Systems Research, 212. Lien externe

Haddadi, A., Farantatos, E., Kocar, I., & Karaagac, U. (2021). Impact of Inverter Based Resources on System Protection. Energies, 14(4), 1050 (21 pages). Lien externe

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. Lien externe

Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (juin 2020). Negative sequence quantities-based protection under inverter-based resources – Challenges and impact of the German grid code [Communication écrite]. 21st Power Systems Computation Conference (PSCC 2020) (6 pages). Publié dans Electric Power Systems Research, 188. Lien externe

Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (août 2020). Performance of phase comparison line protection under inverter-based resources and impact of the german grid code [Communication écrite]. 2020 IEEE Power and Energy Society General Meeting (PESGM 2020), Montréal, Qc, Canada (5 pages). Lien externe

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. Disponible

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. Lien externe

Haddadi, A., Cai, M., Karaagac, U., & Mahseredjian, J. (juin 2019). Power system test cases for EMT-type simulation studies [Communication écrite]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). Lien externe

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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. Lien externe

Javid, Z., Karaagac, U., & Kocar, I. (2022). Improved Laplacian Matrix based power flow solver for DC distribution networks. Energy Reports, 8(S8), 528-537. Lien externe

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. Disponible

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Karaagac, U., Kocar, I., Mahseredjian, J., Cai, L., & Javid, Z. (juin 2021). STATCOM integration into a DFIG-based wind park for reactive power compensation and its impact on wind park high voltage ride-through capability [Communication écrite]. International Conference on Power Systems Transients (IPST 2021), Belo Horizonte, Brazil (8 pages). Publié dans Electric Power Systems Research, 199. Lien externe

Karaagac, U., Mahseredjian, J., Gagnon, R., Gras, H., Saad, H., Cai, L., Kocar, I., Haddadi, A., Farantatos, E., Bu, S., Chan, K., & Wang, L. (août 2020). A Generic EMT-Type Model for Wind Parks with Permanent Magnet Synchronous Generator Full Size Converter Wind Turbines [Communication écrite]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). Lien externe

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. Lien externe

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. Lien externe

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. Lien externe

Kocar, I., Karaagac, U., Mahseredjian, J., & Cetindag, B. B. (août 2018). Multiphase Load-flow Solution and Initialization of Induction Machines [Résumé]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, OR, USA (1 page). Lien externe

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. Lien externe

Karaagac, U., Mahseredjian, J., Jensen, S., Gagnon, R., Fecteau, M., & Kocar, I. (août 2018). Safe operation of DFIG based wind parks in series compensated systems [Communication écrite]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, Oregon, USA. Lien externe

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. Lien externe

Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Mahseredjian, J., & Farantatos, E. (juillet 2017). An accurate type III wind turbine generator short circuit model for protection applications [Résumé]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). Lien externe

Karaagac, U., Mahseredjian, J., Cai, L., & Saad, H. (juillet 2017). Offshore wind farm modeling accuracy and efficiency in MMC-based multi-terminal HVDC connection [Résumé]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). Lien externe

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. Lien externe

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. Lien externe

Kauffmann, T., Karaagac, U., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (juillet 2015). Phasor domain modeling of Type III wind turbine generator for protection studies [Communication écrite]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). Lien externe

Karaagac, U., Kauffmann, T., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (juillet 2015). Phasor domain modeling of type-IV wind turbine generator for protection studies [Communication écrite]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). Lien externe

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. Lien externe

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. Lien externe

Karaagac, U., Mahseredjian, J., Saad, H., Jensen, S., & Cai, L. (juillet 2013). Examination of Fault-Ride-Through methods for off-shore wind farms with VSC-based multi-therminal HVDC [Communication écrite]. International Conference on Power Systems Transients (IPST 2013), Vancouver, BC, Canada (6 pages). Lien externe

Karaagac, U., Gras, H., Mahseredjian, J., El-Akoum, A., & Legrand, X. (juillet 2013). Synchronous machine exciter circuit model in a simultaneous field winding interface [Communication écrite]. IEEE Power and Energy Society General Meeting (PESGM 2013), Vancouver, BC, Canada (5 pages). Lien externe

Karaagac, U. (2011). Synchronous Machine Modeling Precision and Efficiency in Electromagnetic Transients [Thèse de doctorat, École Polytechnique de Montréal]. Disponible

Karaagac, U., Mahseredjian, J., & Saad, O. (2011). An efficient synchronous machine model for electromagnetic transients. IEEE Transactions on Power Delivery, 26(4), 2456-2465. Lien externe

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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. Disponible

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. Lien externe

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. Lien externe

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. Lien externe

Mahseredjian, J., Karaagac, U., Dennetière, S., & Saad, H. (2015). Simulation of electromagnetic transients with EMTP-RV. Dans Numerical Analysis of Power System Transients and Dynamics (p. 103-34). Lien externe

Mahseredjian, J., Kocar, I., & Karaagac, U. (2014). Solution Techniques for Electromagnetic Transients in Power Systems. Dans Transient Analysis of Power Systems: Solution Techniques, Tools and Applications (p. 9-38). Lien externe

Mahseredjian, J., Dufour, C., Karaagac, U., & Bélanger, J. (juin 2011). Simulation of power system transients using state-space grouping through nodal analysis [Communication écrite]. International Conference on Power Systems Transients (IPST 2011), Delft, Netherlands (7 pages). Lien externe

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Rashidirad, N., Mahseredjian, J., Kocar, I., Karaagac, U., & Saad, O. (juillet 2023). MANA-based load-flow solution for islanded AC microgrids [Communication écrite]. IEEE Power & Energy Society General Meeting (PESGM 2023), Orlando, FL, USA (1 page). Lien externe

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Seyedi, Y., Karaagac, U., Mahseredjian, J., Haddadi, A., Jacobs, K., & Karimi, H. (2022). Detailed modeling of inverter-based resources. Dans Advances in Power System Modelling, Control and Stability Analysis (p. 175-203). Lien externe

Seyedi, Y., Mahseredjian, J., Karimi, H., Karaagac, U., & Schwanka Trevisan, A. (juin 2022). Fast detection of SSR conditions for wind parks in series-compensated transmission systems [Communication écrite]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Publié dans Electric Power Systems Research, 211. Lien externe

Seyedi, Y., Mahseredjian, J., Karimi, H., Karaagac, U., & Trevisan, A. S. (2022). Fast detection of SSR for wind parks connected to series-compensated transmission systems. Electric Power Systems Research, 211, 6 pages. Lien externe

Seyedi, Y., Karaagac, U., Mahseredjian, J., & Karimi, H. (2022). Scanning methods for stability analysis of inverter-based resources. Dans Advances in Power System Modelling, Control and Stability Analysis (2e éd., p. 663-94). Lien externe

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. Lien externe

Stepanov, A., Mahseredjian, J., Karaagac, U., & Saad, H. (juillet 2021). Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations [Communication écrite]. 2021 IEEE Power and Energy Society General Meeting (PESGM 2021), Washington, D.C., USA (1 page). Lien externe

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. Lien externe

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. Lien externe

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (août 2020). Spurious Power Losses in Modular Multilevel Converter Arm Equivalent Model [Communication écrite]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). Lien externe

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. Lien externe

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (juin 2019). Spurious power generation in arm equivalent model variants of modular multilevel converter [Communication écrite]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). Lien externe

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Xue, T., Karaagac, U., Kocar, I., Vavdareh, M. B., & Ghafouri, M. (décembre 2023). Machine Learning Basics and Potential Applications in Power Systems [Communication écrite]. 4th International Conference on Electrical, Communication and Computer Engineering (ICECCE 2023), Dubai, United arab emirates (7 pages). Lien externe

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. Lien externe

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