A Robust and Fast Synchronization Technique for Adverse Grid Conditions
A Robust and Fast Synchronization Technique for Adverse Grid Conditions
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DOI：
10.1109/tie.2016.2636206
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发表时间：
2017-04
影响因子：
7.7
通讯作者：
S. Golestan;J. Guerrero;J. Vasquez
中科院分区：
文献类型：
--
作者：
S. Golestan;J. Guerrero;J. Vasquez
所有并网电源转换器都需要一种设备/算法来与公用电网同步。在近年来提出的不同同步技术中，锁相环（PLL）可能是最流行的一种。然而，PLL 在其标准结构中的滤波能力有限。解决这个问题的一个简单而有效的想法是在 PLL 结构中包含额外的滤波器。本文提出了一种纳入 PLL 结构的自适应滤波技术。然后提出了一种用于调整 PLL 控制参数的系统设计方法。通过与最先进的 PLL 的性能比较分析，最终验证了所提出的 PLL 的有效性。
All grid-connected power converters require a device/algorithm for the synchronization with the utility grid. Among different synchronization techniques that have been proposed in recent years, the phase-locked loop (PLL) is probably the most popular one. The PLL, however, in its standard structure, has a limited filtering capability. A simple yet effective idea to deal with this problem is including additional filters in the PLL structure. In this paper, an adaptive filtering technique for including into the PLL structure is suggested. A systematic design approach for tuning the PLL control parameters is then presented. The effectiveness of the proposed PLL is finally verified through a comparative performance analysis with the state-of-the-art PLLs.