Three-Phase Active Power Filter with Instantaneous Reactive Power Theory and Hysteresis Current Control - MATLAB Simulation Model

This MATLAB simulation model of a three-phase active power filter employs instantaneous reactive power theory combined with hysteresis current control to eliminate harmonics and enhance power quality in electrical power systems. The model continuously monitors grid currents and responds dynamically to system variations, utilizing instantaneous reactive power calculations to generate precise compensation currents. The hysteresis current control algorithm maintains stable filter performance by constraining the output current within predefined bounds, ensuring robust operation under varying load conditions. The implementation typically involves dq0 transformation for instantaneous power calculation, harmonic detection algorithms, and real-time current tracking through hysteresis comparators. This simulation model demonstrates significant practical value for harmonic mitigation and power quality enhancement applications in modern power systems, providing researchers and engineers with an effective tool for analyzing filter performance and control strategies.