Research on inertial synchronization control strategy considering wind power fluctuation

The inertial synchronization control strategy based on DC voltage enables the converter to sense the grid frequency through the charging and discharging of the DC-bus capacitor, thereby achieving the phase-locking at the grid-connected point. However, this method is easily interfered by factors such as wind-power fluctuations when sensing the grid frequency and phase, causing large-scale fluctuations of the DC voltage, thus affecting the inertial synchronization control. In response to this, this paper proposes an inertial synchronization control strategy considering wind-power fluctuations, and uses PSCAD/EMTDC to conduct simulation verification of the effectiveness of the proposed control strategy.