Active power filter APF (Active Power Filter Harmonic Treatment plant production, referred APF) is a dynamic harmonic suppression, reactive power compensation of new power electronic devices, it is capable of varying size and frequency harmonics and reactive power compensation changes. It is called active, as the name suggests the device is required to provide power supply (main circuit to compensate harmonics) Harmonic control method, the application can overcome the traditional LC filters harmonic suppression and reactive power compensation method disadvantages (tradition The only fixed compensation), to achieve dynamic tracking compensation professional harmonic control, and can both complement and supplement harmonic reactive; three-phase circuit instantaneous reactive power theory is the main basis for the development of the theory of APF; APF has shunt and series two, the former is used more; shunt active filter main governance control current harmonic harmonic series active filter control voltage main problem is caused by harmonics. Active Filter comparison with passive filters, the treatment effect is good, the main can filter out many times and higher harmonics, does not cause resonance, but the price is relatively high! Active power filter technology green efficiency 97.2%, compared with 95% efficiency of active filters to save energy for about 6 years, higher efficiency topology 500kwh enhanced control algorithms based on the thermal design and optimization of small-scale structure of the exact model of the volume of comparable mainstream brands 1/6, occupy less space, living to adapt to different conditions installation innovation, wall-mounted or rack-mounted using fewer raw materials, environmental protection, intelligent compensation specified number of adjustable harmonic sensibility capacitive reactive power compensation unbalanced load compensation system automatically detects resonance suppression system fully functional surveillance systems Modular N + 1 redundancy, significantly improve system reliability assembly line production, better quality assurance system to reduce single points of failure in parallel flexible, adapt Harmonic different conditions _ quote _ Guancheng harmonic control is provided by conventional Connaught Electrical and Mechanical and Electrical Equipment Co. Henan Xi promise. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught Electrical and Mechanical study into the brilliant and you work for a better future!