A mixed type active power filter compensating system for three -phase grid

The utility model relates to a new forms of energy and internet technology field disclose a mixed type active power filter compensating system for three -phase grid. Mixed type active power filter compensating system can rationally share the harmonic management task among the three -phase grid, utilizes the low order resonance circuit who has the passive filter characteristics to subdue the low order harmonic of high range, utilizes the high -order harmonic of the super wide band of active power filter ware compensation to the various harmonics to among the three -phase grid that can be complete are administered, make the actual wave form symmetry sineization in each ferroelectric phase branch road, ensure the electric energy quality. Simultaneously, because low order resonance circuit, can reduce the capacity demand of active power filter device to the consumption of low order harmonic by a wide margin, reduce mixed type active power filter compensating system builds the cost.