Harmonic detection for shunt hybrid active filter using adaptive filter

This paper presents harmonic detecting method for a shunt hybrid active filter using adaptive filter. An adaptive noise canceling theory has been applied as a harmonic detection system to determine a harmonic reference signal for controlling an active filter inverter. This paper presents a new configuration of adaptive method to detect the harmonic components from the distorted source current consisting of fundamental, harmonic and interharmonic components. The proposed configuration is tested with the shunt hybrid active filter to compensate the harmonic source current caused by an induction furnace load. To verify the detecting method, the simulation results are revealed via Simulink/Matlab.