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This paper proposes a power feedforward technique for the performance improvement of DC-link voltage control in the dynamic

voltage restorer (DVR). The DC-link Voltage is able to be unstable for an instant owing to any change in the load and voltage sag.

The distortion of the DC-link voltage leads to the negative influence on the performance of DVR. To mitigate the distortion of the

DC-link voltage, the power feedforward component is calculated by the load power and the grid voltage, and then it is added to the

reference current of the conventional DC-link voltage controller. By including output power feedforward component on the DC-link

controller, the DC-link voltage can settle down more quickly than when the conventional DC-link voltage controller applied. The

proposed technique was validated through the simulation and experimental results.