Power Quality improvement of distribution networks with harmonic compensation and reactive power control of linear and non-linear loads by D-STATCOM

Harmonic voltage and current, power factor or reactive power, equilibrium state of three-phase system and voltage drop or voltage regulation are important factors of power quality issue in distribution network. Also, these factors cause serious damage to the indicators of the network and its equipment. To solve this issue, these cases should be corrected by different compensators at the level of the distribution network. Therefore, this paper presents the compensation of destructive indicators of linear and non-linear loads using D-STATCOM based on conventional power theory (CPT) in the distribution network. It is worth mentioning that in this paper, two methods of CPT and momentary active and reactive power theory (PQ) are used for    D-STATCOM control strategy. Finally, the proposed design is applied on a three-phase system consisting of linear and non-linear loads using PSIM software, and then the capabilities of the proposed design are evaluated.