
Dr. A. (Aleksandra) Lekic
Dr. A. (Aleksandra) Lekic
Profiel
Projecten
Aleksandra is involved in the following projects:- InterOPERA, as a co-principal investigator
- Harmony, as a principal investigator
- SAFE-GRID, NWO Veni individual project
- SUNRISE, as a principal investigator from TU Delft and WP3 lead
- EASY-RES, as task 6.4 lead - finished project
Prijzen
Expertise
Aleksandra's research topics are related to the circuit theory, control, and stability analysis of nonlinear switching power converters and hybrid power systems employing power electronics. She has worked on circuit theory concepts applied to multiport power system analysis, with a special focus on HVDC systems; and harmonic stability assessment of the hybrid power systems consisting of the passive and active components: impedance-based MMC and other VSC modeling. Also, she has developed multiple nonlinear controlling algorithms relying on the Lyapunov theory, and model predictive control methods used for stable and efficient control of switching converters and systems consisting of renewable sources and power converters.Her research team has contributed with open source solutions for:
- RSCAD/RTDS based entirely scripted futuristic North-Sea energy hub models: https://github.com/control-protection-grids-tudelft/HVDC-RTDS-models
- Automatic nonlinear MPC solution for the DC-DC converters: https://github.com/kul-optec/dc_dc_simulator
Biografie
Aleksandra received B.S., M.S., and Ph.D. degrees in electrical engineering from the School of Electrical Engineering, University of Belgrade, Belgrade, Serbia, in 2012, 2013, and 2017, respectively. Between 2012 and 2018 she has been a Teaching Assistant with the School of Electrical Engineering, University of Belgrade, and an Assistant Professor from 2018 to 2019. In 2019 she worked as a Postdoctoral Researcher at the Department of Electrical Engineering ESAT – ELECTA, KU Leuven, and in the Institute EnergyVille, Genk, Belgium. Since January 2020, Aleksandra works as an Assistant Professor at TU Delft, Faculty of Electrical Engineering, Mathematics and Computer Science.Aleksandra leads a team of researchers (four Ph.D. and five postdoctoral researchers) specializing in the Control of HVDC/AC power systems. She is an Associate Editor in the International Journal of Electrical Power & Energy Systems, Elsevier, and in the Electrical Engineering, Springer. Aleksandra represents TU Delft in the General Assembly in the CRESYM organization, committed to open-source software development for the electrical grids.
Research team
- Ajay Shetgaonkar, project: InterOPERA and SectorPlan
- Le Liu, CSC project
- Rohan Kamat Tarcar, project: InterOPERA
- Dr. Vaibhav Nougain, project: SUNRISE
- Dr. Rashmi Prasad, project: BiGER Explore
- Hongjin Du, CSC project and Harmony
- Dr. Haixiao Li, CSC project and Harmony
- Dr. Dongyu Li, project: Harmony
- Dr. Sounak Nandi, project: Harmony
Expertise
Publicaties
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2023
Development of Reliable Power Electronic Systems using Real Time Digital Twin Based Power Hardware-in-the-Loop Testbed
Aditya Shekhar / Gautam Rituraj / Robin van der Sande / Miad Ahmadi / Rohan Deshmukh / Pavol Bauer / Vaibhav Nougain / Aleksandra Lekic / Peter Palensky
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2023
Distribution Network Reconfiguration Considering the Impacts of Local Renewable Generation and External Power Grid
Haixiao Li / Aleksandra Lekic / Shan Li / Dongrong Jiang / Qiang Guo / Lin Zhou
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2023
Fault Location Algorithm for Multi-Terminal Radial Medium Voltage DC Microgrid
Vaibhav Nougain / Sukumar Mishra / Soumya Shubhra Nag / Aleksandra Lekic
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2023
High-frequency transformer winding model with adequate protection
Farzad Nasirpour / Amir Heidary / Mohamad Ghaffarian Niasar / Aleksandra Lekić / Marjan Popov
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2023
Impact of Virtual Synchronous Generators on Power System Frequency Dynamics
Aihui Fu / Aleksandra Lekić / Eleftherios O. Kontis / Kyriaki-Nefeli D. Malamaki / Georgios C. Kryonidis / Juan Manuel Mauricio / Charis S. Demoulias / Milos Cvetkovic
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Prijzen
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2023-8-3
Veni grant AES 2022
EEMCS researcher Aleksandra Lekić has received a Veni grant within the Applied and Technical Sciences (TTW) domain. She received it for her research SAFE-GRID: Smart and Flexible Control for a Power Electronics-based Electrical Grid.
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2020
Best paper award in 2020
Journal of Circuit Theory and Applications
Nevenwerkzaamheden
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2022-01-03 - 2024-12-31