Algerian Journal of electrical systems and sustainability

Hybrid AC/DC Power System Stability: An Attempt of Global Approach

2026-06-30T18:40:27+08:00

In this paper, a new control coordination strategy is proposed to address multiple stability problems that may arise
in HVAC/HVDC power systems. The stability issues studied in this paper include small-signal, rotor angle,
frequency, and DC voltage. A benchmark composed of two 2-area AC systems inspired by Kundur system
connected through a Modular Multilevel Converter-based (MMC) multi-terminal DC (MTDC) system is proposed
to study multiple stability issues. To enhance the global security of the considered benchmark power system,
supplementary power converter controllers are designed and implemented as ancillary HVDC services. The
combination of these services may not always result in satisfactory dynamic performance due to system constraints
and control interactions. Therefore, a coordinated strategy is proposed and evaluated through a comparative study.
The advantages of this method are mainly: 1) AC & DC stability phenomena – usually studied separately – are
considered and enhanced in a global approach, simultaneously, and 2) the coordination strategy guarantees
minimal control interactions during operation without the need of modifying the tuning of the controller
parameters.

Green Hydrogen for Irrigation: A Pilot Model for Food Security and Energy Transition in Algeria

2026-06-30T19:19:43+08:00

This paper presents a pilot model for the integration of solar photovoltaic (PV) energy and green hydrogen
production to support irrigation over 100 hectares in Adrar, Algeria. The study focuses on the synergistic
relationship between solar radiation, PV generation, and agricultural water demand under desert climatic
conditions. Simulation data for the year 2025 demonstrate that hydrogen storage can effectively bridge the
temporal mismatch between energy availability and irrigation needs. The results highlight Adrar’s potential as a
strategic hub for coupling renewable energy and sustainable agriculture in North Africa.

Performance Analysis of an Induction Motor Drive Based on Split-Source Inverter and Field-Oriented Control for Electric Traction Applications

2026-06-30T19:43:33+08:00

The rise of electric vehicles has renewed interest in induction machines due to their robustness, low cost, and performance well
suited to traction applications. This work presents a study on the modelling and control of an induction machine powered by a Split
Source Inverter (SSI). The objective is to analyze the machine’s performance under Field-Oriented Control (FOC), which allows
decoupling between flux and electromagnetic torque. The developed models were simulated using MATLAB/Simulink. The results
demonstrate a significant improvement in the machine’s stability, accuracy, and dynamic response when FOC is combined with
SSI compared to conventional power supply configurations.

Hydrogen Integration in a Renewable Hybrid Energy System

2026-06-30T19:51:13+08:00

This paper presents a technical analysis of a hybrid renewable energy system combining photovoltaic and wind
energy sources with a hydrogen fuel cell for water pumping applications. The proposed system supplies
electrical power to both an electrolyzer for hydrogen production and a double-star asynchronous motor driving a
centrifugal pump. A detailed sizing of the different subsystems has been carried out to ensure reliable and
efficient operation under varying environmental conditions. The obtained results demonstrate the effectiveness
of integrating fuel cell technology into a renewable hybrid architecture, enabling clean, sustainable, and reliable
energy generation for water pumping systems, particularly in remote and off-grid areas.

Design and Implementation of a Single Grid- Current Feedback Active Damping Strategy for LCL-Filtered Grid-Connected Inverters

2026-06-30T19:58:51+08:00

This paper investigates a design method for regulating the injected current of renewable energy systems
connected to the power grid through single- or three-phase voltage source inverters equipped with LCL filters.
Inspired by the structure of passive damping schemes, a virtual resistance concept based on single grid-current
feedback is adopted to achieve active damping without requiring additional sensors, thereby reducing system
cost. Closed-loop analysis reveals that the proposed control strategy is equivalent to a conventional dual-loop
control with capacitor-current feedback. However, such equivalence can only be achieved through an accurate
second derivative approximation. To address the noise sensitivity associated of the derivative operation
connection of a pure second derivative and a second-order low-pass filter is proposed. A proportional-resonant
controller is employed to track the AC reference current, and a straightforward design procedure for determining
the active damping controller parameters is introduced. To evaluate the performance of the proposed control
method, the system is experimentally tested on a laboratory setup under distorted grid voltage. The obtained
results confirm the effectiveness of the selected active damping approach.