Study on a series hybrid active power filter based on novel fuzzy immune PID controller

As the PID parameters have great influence on the performance of a series hybrid active power filter(SHAPF).A novel fuzzy-immune-PID controller was designed based on the principle of fuzzy immune feedback and PID control, which was used to control a series hybrid active power filter. The controller can effectively trace and compensate harmonic. A three-phase series hybrid active power filter was simulated in Matlab/Simulink7.0 by using SimPowerSystems Blockset. By analyzing the simulation results, we can see that the series hybrid active power filter based on novel fuzzy immune-PID Control has a high capability of exact and a good real time performance. A comparative study on the between different control approaches´ compensation performances shows that the series hybrid active power filter based on new methods can eliminate harmonic current effectively.