
Dr. A. (Aleksandra) Lekić
Dr. A. (Aleksandra) Lekić
Profiel
Projecten
Aleksandra is involved in the following projects:
- InterOPERA, as a co-lead from TU Delft
- Harmony, as a principal investigator
- PROSECCO, as a principal investigator from TU Delft, and WP4 lead
- SAFE-GRID, NWO Veni individual project
- Inter-oPEn, as a principal investigator from TU Delft, and WP4 lead
- SUNRISE, as a principal investigator from TU Delft and WP3 lead
Finished projects:
- EASY-RES, as task 6.4 lead
- BiGER Explore, TU Delft lead
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
- RSCAD/RTDS models for advanced control of HVDC-based electrical grids using real-time training neural networks: https://github.com/control-protection-grids-tudelft/RTDS_NN_models
- MOOC "Control and protection of HVDC/AC electrical grids" offered by IEEE IES and the GitHub library of models following the course.
- 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 specializing in the Control of HVDC/AC power systems. She is an Associate Editor in the International Journal of Electrical Power & Energy Systems, Elsevier. Aleksandra represents TU Delft in the General Assembly in the CRESYM organization, committed to open-source software development for the electrical grids.
Research team
- Rohan Kamat Tarcar, project: InterOPERA
- Dr. Reza Bakhshi Jafarabadi, project: InterOPERA
- Dr. Farzad Dehghan Marvasti, project: InterOPERA
- Saif Alsarayreh, project: Harmony
- Dr. Haixiao Li, Harmony
- Dr. Zeinab Kermansaravi, project: Harmony
- Dr. Sunny Singh, project: SAFE-GRID
- Tuanaku Badzlin Hashfi, project: Inter-oPEn
- Rahul Rane, project: PROSECCO
- Hongjin Du, CSC project
Expertise
Publicaties
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2025
Developing grid-forming converter controller DLL for real-time HIL simulations
Utkarsh Singh / Ravi Singh / Marjan Popov / Aleksandra Lekić
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2025
Enhanced AC/DC optimal power flow via nested distributed optimization for AC/VSC-MTDC hybrid power systems
Haixiao Li / Pedro P. Vergara / Robert Dimitrovski / Hongjin Du / Aleksandra Lekić
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2025
Influence of Control and Limiter Schemes on Sequence-Domain Fault Models of Grid-Forming Inverter-Interfaced Distributed Generators
Soham Chakraborty / Sarasij Das / Utkarsh Singh / Aleksandra Lekić / Ravi Singh / Jose De Jesus Chavez / Marjan Popov
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2025
Neural Networks in RSCAD: Enhancing MMC-based HVDC Simulation with Advanced Machine Learning
Bara Masalmeh / Rashmi Prasad / Vaibhav Nougain / Aleksandra Lekić
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2025
Non-unit protection method for boundary-component-free MTDC systems using normalized backward traveling waves
Fan Xie / Le Liu / Zhiguo Hao / Ting Wang / Songhao Yang / Aleksandra Lekić / Marjan Popov
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Onderwijs 2024
Onderwijs 2023
Media
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2024-11-15
Stabiele stroomvoorziening
Verscheen in: TU Delft stories
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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2025-01-01 - 2026-12-31