Building APF Using Simulink Modules in MATLAB

This text describes the construction of an Active Power Filter (APF) using Simulink modules in MATLAB, which has been successfully tested. To elaborate on this process, we can provide further technical details. In power systems, APF serves as a critical solution for harmonic reduction and power quality improvement. Through MATLAB's Simulink environment, engineers can design and simulate APF performance using block-based graphical programming. The implementation typically involves configuring power electronics components (like IGBTs), designing control algorithms (such as instantaneous power theory or pq theory), and setting up measurement blocks for harmonic analysis. Key parameters to consider include control strategies (hysteresis control or PWM techniques), filter types (shunt or series configurations), and performance metrics like Total Harmonic Distortion (THD). The simulation allows for testing under various load conditions using Simulink's Power System toolbox, where developers can monitor waveforms through scope blocks and analyze results with FFT tools. Final validation involves comparing simulated performance with IEEE standards, followed by necessary optimizations through parameter tuning and controller adjustments. Thus, building APF using MATLAB Simulink represents a crucial engineering task that enhances power system stability and reliability through systematic simulation and verification workflows.