Successful vector control for grid connection of renewable power generation relies on accurate and fast tracking of the voltage phase at the point of common coupling using a phase-locked loop (PLL). In this study, we propose a method to evaluate the effect of power system dynamics on the PLL performance. Simulation results demonstrate that the PLL performance is considerably affected by the power system dynamics, which is not observable under conventional test conditions considering a PLL connected to a three-phase voltage source. Therefore, we proposed an improved evaluation method considering the same source but integrating the system dynamics during evaluation. We expect that the proposed method will assist in the design of PLLs to improve the phase tracking of the voltage at the point of common coupling.

中文翻译：

---

考虑可再生发电并网的电力系统动态的 PLL 性能评估

可再生能源发电并网的成功矢量控制依赖于使用锁相环 (PLL) 在公共耦合点准确快速地跟踪电压相位。在本研究中，我们提出了一种评估电力系统动态对 PLL 性能影响的方法。仿真结果表明，PLL 性能受电力系统动态影响很大，考虑到 PLL 连接到三相电压源，在常规测试条件下无法观察到这一点。因此，我们提出了一种改进的评估方法，考虑到相同的来源，但在评估过程中整合了系统动力学。我们期望所提出的方法将有助于 PLL 的设计，以改善公共耦合点电压的相位跟踪。