Simulation Model of Active Power Filter

In this documentation, I have developed a simulation model for an active power filter using MATLAB. Although the model design is somewhat disorganized, I will thoroughly explain the core concepts and implementation steps.

Primarily, I utilized MATLAB's Signal Processing Toolbox to construct this active power filter simulation. By selecting appropriate signal sources and configuring filter parameters using functions like designfilt() or filter(), I simulated realistic filter performance within electrical power systems. The implementation involves defining transfer functions and setting up frequency response specifications.

Subsequently, I performed signal preprocessing, including filter parameter adjustments and signal source configuration through MATLAB scripting. This involved using functions such as fdesign for filter specification and implementing windowing techniques to ensure model accuracy and reliability in harmonic elimination.

Following this, I conducted simulation experiments by inputting various signal types (sinusoidal, square waves, and harmonic-rich signals) to test filter performance. Using MATLAB's Simulink environment and scripting capabilities, I observed the filter's response to signals with different frequencies and amplitudes, recording output results through scope blocks and data logging functions.

Finally, I analyzed and evaluated the simulation results. Using MATLAB's analytical tools like FFT analysis and performance metrics calculation, I compared performance differences under various filter parameter settings (such as cutoff frequencies and filter orders), and proposed improvement suggestions regarding algorithm optimization and real-time implementation considerations.

Overall, while this active power filter simulation model has some organizational issues, through my detailed explanations of the control algorithms (like pq theory or dq transformation) and implementation methodology, you should comprehend the essential concepts and procedural flow. Please feel free to ask if you have any questions or require further technical clarification.