A New Control Method for Operation of D-STATCOM Under the Unbalanced Conditions

This paper presents a new control method for D-STAT COM operation under unbalanced condition. The aim of th is method is to balance the load currents. The proposed method e xtracts the negative and positive sequence components for gener ati g reference values of current that should be injected in order to compensat the load. The proposed method offers stru ctural simplicity and less calculation complexity. Simulat ion results indicate that this method is effective and D-STATCO M has good performance under unbalanced conditions.