An optimized shunt active power filter using the golden Jackal optimizer for power quality improvement

Area of Science:

• Electrical Engineering
• Power Systems Engineering
• Control Systems

Background:

• Nonlinear loads in power systems generate harmonic currents and reactive power, degrading power quality and grid stability.
• Harmonic currents lead to increased losses, equipment overheating, and voltage distortions.
• Reactive power imbalances cause power delivery inefficiencies and reduced system performance.

Purpose of the Study:

• To propose a Shunt Active Power Filter (SAPF) design for harmonic mitigation and reactive power compensation.
• To develop an optimal control strategy for enhanced power quality and grid stability.
• To validate the proposed method's effectiveness under dynamic load and unbalanced grid conditions.

Main Methods:

• Design of a Shunt Active Power Filter with an optimized anti-windup PI controller for DC-link voltage regulation.
• Optimization of the output filter to improve injected current quality.
• Formulation of the design as an optimization problem solved using the Golden Jackal Optimizer (GJO).
• Validation through MATLAB/Simulink simulations.

Main Results:

• Significant reduction in Total Harmonic Distortion (THD) of the grid current.
• Effective reactive power compensation achieved.
• Demonstrated stability of the power grid under dynamic load changes and unbalanced conditions.
• Validation of the GJO's efficacy in optimizing the SAPF design.

Conclusions:

• The proposed Shunt Active Power Filter design and GJO-based control strategy effectively mitigate harmonics and compensate reactive power.
• The method enhances power quality and ensures grid stability, even with nonlinear loads and disturbances.
• This approach offers a robust solution for improving modern power system performance.