XiChi XPQ Active Filters are used for Harmonic Reduction in Haier IOT Center. The active power harmonic filter (APF/AHF) suppresses the harmonic current on the load side to a great extent, and the overall harmonic filtering effect is obvious.

APF is a new type of power electronic device for dynamically suppressing harmonics and compensating reactive power. It can quickly track and compensate harmonics of different sizes and frequencies. Compared with the passive filter device, the active filter device has better treatment effect, and it can mainly filter out multiple and high-order harmonics at the same time without causing resonance.