Active Power filter

Active Power filter

Active power filter (APF) is designed to filter the harmonics injected by non-linear loads in power networks. It can analyze the line current harmonics drawn by the loads and generate a compensation current dynamically at the opposite phase angle, thereby “neutralizing” the harmonic currents.

Features 

◎ Based on 3-Level topology circuit 

◎ Modular design for a shorter delivery cycle and easy maintenance. 

◎ Rack-mounted or wall-mounted design which can be easily combined and installed as needed. 

◎ It is possible to compensate the 2nd~51st harmonics, or select a specific order of harmonics to compensate separately. 

◎ Flexible compensation modes: 

◎ Harmonic compensation 

◎ Reactive power compensation 

◎ Three phase imbalance compensation 

◎ Harmonic +Reactive power +Imbalance 

◎ Remote communication interfaces, with real-time monitoring being achieved via PC machines.

◎ A full automatic detection runs during the whole compensation process, and should it be restarted, self-diagnosis will function; then after the fault is removed, it will be automatically put into use. 

◎ Free of harmonic resonance. 

◎ A user-friendly human-machine interface is configured to operate, and display system’s real-time parameters like voltage/current waveforms, active power, reactive power, apparent power, power factor, harmonics, etc. ◎ Intelligent control circuit with perfect protection functions (against overvoltage, under voltage, over-heating, over current, etc.).