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All Journal Indonesian Journal of Electrical Engineering and Informatics (IJEEI)
Mellah, Hacene
Bouira university
Computer Science & IT Electrical & Electronics Engineering

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Intelligent Interconnection of Parallel LCC-HVDC Links and AC Grids for Transient Stability Enhancement under Faults Conditions Bakdi, Moussa; Taleb, Rachid; Toualbia, Asma; Mellah, Hacene; Mehedi, Fayçal; Bouyakoub, Ismail; Benziane, Madjid Meriem
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 14, No 1: March 2026
Publisher : IAES Indonesian Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52549/ijeei.v14i1.7150

Abstract

The intelligent interconnection of AC grids across diverse regions, incorporating renewable energy sources and complex, a nonlinear grid configurations, presents significant challenges to power system stability. To mitigate instability and suppress power oscillations during short-circuit faults in AC grids, this work focuses on leveraging high-performance power electronic converters, specifically Line Commutated Converters (LCCs) based on High-Voltage Direct Current (HVDC) in parallel links, to facilitate efficient power exchange and enhance grid integration and stability. This work proposes an advanced control framework for intelligent interconnection systems; a dual-layer control strategy is introduced, combining a Conventional Power System Stabilizer (CPSS) for local damping of synchronous generator oscillations and a Power Oscillation Damping (POD) controller for global mitigation of inter-area and Wide-Area Oscillations (WAO). This integrated approach is established as a leading control methodology for LCC-HVDC systems, enabling robust synchronous interconnections between hybrid AC/DC grids. The paper further examines key challenges in designing and implementing the LCC-HVDC-based POD controller, addressing dynamic performance and system-wide coordination. Dynamic simulations are conducted using the Power System Toolbox (PST) in MATLAB, leveraging its user-friendly interface and computational efficiency. The results demonstrate superior dynamic response, with rapid oscillation damping and enhanced steady-state performance, validating the proposed controller's efficacy in improving transient stability.
Design and Control of A Standalone Photovoltaic Power System For Telecommunications In Isolated Regions of Algeria Hamza, Sahraoui; Moussa Mohamed, Ali; Mellah, Hacene; Maafa, Amar; Yahiou, Abdelghani; Taieb, Bessad; Mechnane, Farouk; Kamal, Baazouzi; Said, Drid; Chrifi-Alaou, Larbi
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 14, No 1: March 2026
Publisher : IAES Indonesian Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52549/ijeei.v14i1.7679

Abstract

In this paper, we describe the design, control, and management of a photovoltaic (PV) power supply system for a remote telecommunications facility situated in Bab Ezzouar, Algiers, Algeria, that maintains Base Transceiver Stations (BTS) in remote areas where the intermittent grid is either unavailable or non-existent. The proposal is developed and modeled in MATLAB/Simulink for a freestanding PV-battery hybrid system that utilizes a DC-DC boost converter regulated by a Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm. The proposed system endeavour’s to maximize solar energy harvesting while maintaining a constant energy supply for remotely situated telecommunication BTS without grid connection in a variety of environmental conditions. The simulation results indicate effective MPPT and battery charge-discharge management performance, ensuring BTS autonomy and serviceability 24/7, while demonstrating both technical feasibility and operational efficiency associated with the use of PV-based systems to meet the energy needs of isolated telecommunication infrastructure in North African regions, which have considerable solar potential.
Co-Authors Bakdi, Moussa Benziane, Madjid Meriem BOUYAKOUB, Ismail Chrifi-Alaou, Larbi Hamza, Sahraoui Kamal, Baazouzi Maafa, Amar Mechnane, Farouk MEHEDI, Fayçal Moussa Mohamed, Ali Said, Drid Taieb, Bessad Taleb, Rachid Toualbia, Asma Yahiou, Abdelghani