The space vector control of the SAPF in the condition of non-ideal source

As a result of three-phase voltage of non-ideal power distortion and asymmetric, containing a large number of negative sequence components, traditional i_p-i_q method which detect harmonic currents will have error, so the positive sequence voltage component of A phase need be extracted. Improved instantaneous symmetrical components structures the rotary phases without delay by using of instantaneous value of three-phase voltage, it can accurately receive the instruction of the current. The reference voltage obtained by Adaptive neural linear network prediction combines with the classic space vector control achieves the compensation current tracking.