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Application

Active power filter (ZM-APF) adopted modern power electronic technology, is a new power harmonic treatment equipment on basis of hi-speed DSP, digital signal processing technology. It consists of instructive current calculation circuit and compensated current production circuit. The instructive current calculation circuit monitor the current of the line at real time, and convert analog current signal to digital signal, transmitted into DSP, and processed, separate the harmonic waves from basic content, send driving pulse to compensated current production circuit via PWM signal, drive IGBT or IPM power module, produce a compensated current with same amplitude of the harmonic wave, but reverse polarity, to eliminate the harmonic waves in the system.
ZM-APF active power filter is an ideal product for the enterprise that need high electric quality or its power system is heavily distorted and need improved, it can be used widely in steel metallurgy, communication field, rail transportation, tobacco, medical field, water treatment system, cement filed, automobile field, program control field, papermaking field, solar energy field, printing field, building field and etc. The product has steady quality, good performance, meanwhile it can save energy, save material, which is a new way to solve the harmonic waves of the current.

Model and implication