To address this issue,this paper presents an advanced control approach designed for grid-connected PV inverters. The proposed approach is effectiveat reducing oscillations in the DC-link voltage at double the grid frequency,thereby enhancing system stability and component. . vector control technology based on the D-Q spindle reference frame for photovoltaic systems. This method begins with converting the grid current of the reference sinusoidal signal to a 90-degree phase angle and converting it to a DC signal using the clack conversion principle. The. . Does dq frame vector control work in grid-connected PV inverters? The well-known dq frame vector control technique, which is effective under normal conditions, struggles with oscillatory component management in unbalanced grid conditions.