Htaf Active Harmonic Filter

HTAF Active Harmonic Filter is mainly consisted of instruction current arithmetic circuit and compensation current generating circuit. Instruction current arithmetic circuit monitors current in line on real time, changes analog current signal into digital signal, deals signal in DSP, divides harmonic and fundamental wave, sends drive pulse to impregnated current generating circuit in PWM form, drives IGBT or IPM power module, produces current with opposite polarity and same amplitude of compensating current and sends current into electrified wire netting, compensates or counteracts harmonic current and cancels electric harmonic actively. In this way, harmonic current is dealt actively, quickly and completely.
HTAF active power filter can supply required fundamental reactive compensating current, achieves dynamic reactive compensation and improves power factor of electrified wire netting.
Main technology parameter
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Rating compensating current of single machine 400V/50A-200A, 690V/30A-120A
Rating compensating capacity of single machine 33kVar a 133 kVar
mains voltage three phase 380V/690VA 15%
mains frequency 50/60 HzA 2%
Filter harmonic frequency 2i 50th
Filter frequency a Y95%
Response time a 20 ms
Power loss a 3% rating compensation capacity
Noise a 65 dB
Protection function Abnormal voltage protection; over load limitation; system error protection; system overheat protection