Real Time Active Harmonic Filter

Harmonic Distortion,caused by non-linear loads on the supply network results in currents in the system that are of a higher magnitude than expected and contain harmonic frequency components. The economic effects of these harmonics are shorter equipment life, reduced energy efficiency, and susceptibility to nuisance tripping. The Solution: Adaptive Injection Mode(AIM)Harmonic Filter.The Active Harmonic Filter(AHF)s IGBT Converter Bridge reacts at micro-second speed to changes in the non-linear load current, allowing cancellation even as the high frequency harmonic components change.The AHF is not affected by changes in the impedance in the system,nor will it react with other devices. The AHF will also not adversely affect the resonant points in the system.Unlike a tuned filter,the Active Harmonic Filter continuously measures the load's changing non-linear current and injects the required waveform to supply the load's harmonic current demand from the 2nd to the 51st harmonic.