<p>Grid-connected inverters are crucial interfaces in renewable energy power systems. However, with the continuous increase in the penetration of renewable energy generation, the dynamic interaction between these inverters and the grid becomes increasingly complex, leading to prominent high-frequency oscillation issues. This paper addresses the high-frequency oscillations in grid-connected systems caused by filter and delay characteristics, by proposing an enhanced grid-connected current feedback active damping control strategy with phase compensation to effectively mitigate these oscillations. The proposed method introduces an improved phase compensation element into the grid current feedback loop, expanding the virtual positive resistance range provided by traditional grid current feedback. The system stability is analyzed using impedance analysis. Comparisons with traditional methods demonstrate that the proposed approach improves damping performance over a wider frequency range, enhances system stability, and improves power quality. Finally, the feasibility of the strategy is validated through the hardware-in-the-loop experiments, proving its effectiveness in suppressing high-frequency oscillations.</p>