I'm Lazar Šćekić, welcome to my portfolio
I'm a power systems engineer currently working as a teaching assistant at the University of Montenegro's Faculty of Electrical Engineering, where I teach the next generation of engineers and conduct research in the field of power systems.
Power System Stability
AI in Power Systems
Power System Cybersecurity
RES Integration
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JOURNAL
Extended Residue Method with Adaptive Delay Compensation for Robust Multi-Mode Damping
The residue method represents one of the oldest methods for designing Wide-Area Damping Control (WADC) systems. Compared to modern approaches, such as H-infinity control, metaheuristic optimization, and machine learning, the residue method has the advantage of being intuitive and straightforward to implement while having a strong analytical foundation. This paper addresses several unanswered questions regarding the application of the residue method for WADC design. First, it demonstrates that the variability of the residue phase angle, as a strong predictor of controller robustness, must be considered during the control loop selection stage. Second, it extends the control loop selection process to enable the damping of multiple inter-area modes with a single residue-based damping controller. Third, it proposes the use of an adaptive delay compensator with a residue-based damping controller to achieve consistent performance under different time delays. Fourth, it presents a detailed robustness assessment of the residue-based WADC systems under various operating conditions. Numerical experiments performed on the Kundur’s two-area and the 16-machine, 68-bus test systems demonstrate that the designed WADC systems provide sufficient damping to the critical inter-area modes in more than 90% of the considered operating scenarios, regardless of time delay levels.🔬 Latest Project
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ONGOING
HYNET - Pan-European Interoperable AC-DC Hybrid Electricity Networks
The renewed interest in direct current (DC) power transmission and distribution (T&D) systems is driven by the increasing use of power electronic-based loads and distributed energy resources (DERs) operating in DC. In response to events in Ukraine, the European Commission introduced the REPowerEU Plan, aiming to reduce Europe’s dependence on Russian energy imports. The EU-funded HYNET project aims to develop innovative technologies for the transnational design and planning of AC/DC hybrid power systems. It aims to establish standardised methodologies for multi-terminal, multi-vendor MVDC and LVDC systems and to design, implement, and demonstrate innovative solutions for adopting and deploying DC power systems across all voltage levels. The project will showcase HYNET innovations in four European countries.✍️ Latest Blog Post
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