1 citations · 2 across the 22 of their papers we have counts for
24 papers
DCCB-Capability-Aware Optimal Info-Power Flow for Transmission Switching in AC/MTDC Grids
Haixiao Li, Aleksandra Lekić
Transmission switching is an effective approach for restoring operational flexibility and improving the economic performance of AC/multi-terminal DC (MTDC) grids following DC-side…
Envelope Characterizations for Trajectories of the Ćuk Converter
Aleksandra Lekić, Dušan Stipanović
In this paper, a complete characterization of the stability and the boundaries of the envelopes for trajectories of the Ćuk converter is provided in the cases of time and state-dep…
Exponential Weighting Model Predictive Control with Observer for Modular Multilevel Converters
Sunny Singh, Saurabh Mishra, Dušan M Stipanović +1
In this article, we propose a model predictive control (MPC) scheme with an exponential cost function, along with an observer for the Modular Multilevel Converter (MMC), to enhance…
Robust Tuning of Model Predictive Control for MMC-Based High-Voltage Power Systems
Victor Daniel Reyes Dreke, Rahul Rane, Aleksandra Lekić
High-voltage direct current (HDVC) transmission systems based on modular multilevel converters (MMCs) have become a key topology in modern power systems. The dynamics of MMCs exhib…
Robust Current Regulation of MMC-based MTDC Power Systems based on Lyapunov Inequality
Victor Daniel Reyes Dreke, Rahul Rane, Aleksandra Lekić
Multi-terminal DC (MTDC) transmission systems based on modular multilevel converters (MMCs) are a key component of the envisioned future energy sector, where sustainability and eff…
Leveraging Optimal Information-Power Flow for Transmission Switching in AC/MTDC Grids
Haixiao Li, Aleksandra Lekić
The emerging AC/multi-terminal DC grids are regarded as a promising solution for accommodating the increasing integration of renewable energy sources. This work proposes an optimiz…
Advanced simulation framework for AC/MTDC power systems
Aleksandra Lekić, Azadeh Kermansaravi, Haixiao Li +3
Alternating current (AC)/multi-terminal direct current (MTDC) hybrid power systems (HPSs) play a crucial role in enabling long-distance power transmission and flexible interconnect…
SOPF-Based Adaptive Droop Control for Hybrid AC--HVDC Grids Under Offshore Wind Uncertainty
Hongjin Du, Aleksandra Lekić
The integration of massive offshore wind into hybrid AC-HVDC grids demands robust DC voltage regulation, yet conventional fixed-gain droop controllers struggle under severe stochas…
Investigation of Chaotic Behavior in Clapp Oscillator
Ivana Vasiljević, Nikola Petrović, Aleksandra Lekić
In this paper we investigate the chaotic behavior of the class of oscillators denoted as Clapp oscillators. Clapp oscillator is a simple oscillator containing one transistor and a…
Using Assembly Language for Creating Games
Haris Turkmanović, David Vukoje, Aleksandra Lekić +1
The aim of this paper is to demonstrate some interesting and useful approaches for writing a program in the assembly language. In order to demonstrate the possibilities of the asse…
Controlling the Ćuk Converter using Piecewise Linear Lyapunov Functions
Aleksandra Lekić, Nikola Petrović, Dušan Stipanović
In this paper we design a switching control law for the Ćuk converter in the continuous conduction mode using piecewise linear Lyapunov functions. These Lyapunov functions can be c…
LMI Approach for Sliding Mode Control and Analysis of DC-DC Converters
Aleksandra Lekić, Dušan Stipanović
Circuits' and in particular DC/DC converters' switching behavior is analyzed in this paper using the equivalent control modeling of the dynamic systems' sliding mode regime. As a r…
Simulation of Switching Converters Using Linear Capacitor Voltage and Inductor Current Prediction and Correction
Aleksandra Lekić, Vujo Drndarević
In this paper an algorithm for transient simulation of switching converters using prediction and correction to calculate duty ratio is proposed. It provides large signal simulation…
Simulation of Switching Converters on the Level of Averaged Voltages and Currents
Aleksandra Lekić, Predrag Pejović
An algorithm for simulation of switching converters is proposed in the paper. The algorithm is based on simulation of averaged circuit model applying "switching cell" concept, and…
Simulation of Switching Converters on the Level of Averaged Voltages and Currents
Aleksandra Lekić, Predrag Pejović
An algorithm for simulation of switching converters is proposed in the paper. The algorithm is based on simulation of averaged circuit model applying "switching cell" concept, and…
An OPF-based Control Framework for Hybrid AC-MTDC Power Systems under Uncertainty
Hongjin Du, Rahul Rane, Weijie Xia +2
The increasing integration of renewable energy, particularly offshore wind, introduces significant uncertainty into hybrid AC-HVDC systems due to forecast errors and power fluctuat…
Optimal Droop Control Strategy for Coordinated Voltage Regulation and Power Sharing in Hybrid AC-MTDC Systems
Hongjin Du, Tuanku Badzlin Hashfi, Rashmi Prasad +3
With the growing integration of modular multilevel converters (MMCs) in Multi-Terminal Direct Current (MTDC) transmission systems, there is an increasing need for control strategie…
Quantum Hardware-in-the-Loop for Optimal Power Flow in Renewable-Integrated Power Systems
Zeynab Kaseb, Rahul Rane, Aleksandra Lekic +4
Quantum computing has emerged as a promising computational paradigm to address unresolved challenges in the modeling and control of modern power systems. However, most existing stu…
Analysis and Modeling of the Hybrid Vessel's Electrical Power System
Matthijs Mosselaar, Zoran Malbašić, Aihui Fu +1
With the maritime industry poised on the cusp of a hybrid revolution, the design and analysis of advanced vessel systems have become paramount for engineers. This paper presents AC…
A Screening Method for Power System Inertia Zones Identification
{Rashmi Prasad, Pedro P. Vergara, Narayana Prasad Padhy +2
The heterogeneous distribution of frequency support from dispersed renewable generation sources results in varying inertia within the system. The effects of disturbances exhibit no…
Distributed Robust Optimization Method for AC/MTDC Hybrid Power Systems with DC Network Cognizance
Haixiao Li, Aleksandra Lekić
AC/multi-terminal DC (MTDC) hybrid power systems have emerged as a solution for the large-scale and longdistance accommodation of power produced by renewable energy systems (RESs).…
Adaptive Single-Terminal Fault Location for DC Microgrids
Vaibhav Nougain, Sukumar Mishra, Joan-Marc Rodriguez-Bernuz +3
Identifying faulty lines and their accurate location is key for rapidly restoring distribution systems. This will become a greater challenge as the penetration of power electronics…
Event-Triggered Non-Linear Control of Offshore MMC Grids for Asymmetrical AC Faults
Naajein Cherat, Vaibhav Nougain, Milovan Majstorović +2
Fault ride-through capability studies of MMC-HVDC connected wind power plants have focused primarily on the DC link and onshore AC grid faults. Offshore AC faults, mainly asymmetri…
Enhanced Optimal Power Flow Based Droop Control in MMC-MTDC Systems
Hongjin Du, Rashmi Prasad, Aleksandra Lekic +2
Optimizing operational set points for modular multilevel converters (MMCs) in Multi-Terminal Direct Current (MTDC) transmission systems is crucial for ensuring efficient power dist…