Advantages of Active Harmonic Filters An Active Harmonic Filter is a group of electronics filters that will utilize active components like an amplifier for its functioning.Active Harmonic filters have some definite advantages over Passive Filter, including the ability to provide signal gain, higher input and lower output impedances, no need for buffer amplifiers, and less dependency on inductors, which add expense. Advantages of Active Harmonic Filters: No resonance issue It can eliminate any harmonics Used for voltage regulation Used for reactive power compensation It provides reliable operation No loading or overload problem when the load is full It does not exhibit any insertion loss It also allows for isolation control of input and output impedance The component used in the active filter is the smaller size as compared to passive· Active Harmonic Filters providefar more dynamic and superior flexibility in performance as compared to Passive Harmonic Filters. AHF won't cause a leading Power Factor at no-load conditions. This is important as it helps improve the quality ofthe current. PHFs, on the other hand, do.
