论文标题
基于被动性的设计和循环循环的分析
Passivity-based design and analysis of phase-locked loops
论文作者
论文摘要
我们考虑一个网格连接的电压源转换器（VSC），并解决了估计网格角度和频率的问题，这对于转换器的适当操作至关重要。我们设计具有相对较高的短路比率（SCR）和惯性的假设，我们设计具有保证稳定性特性的相锁环（PLL）算法。特别是，我们使用被动参数，传统同步参考框架（SRF）和Arctangent（Atan）PLL得出，这是功率应用中的标准解决方案。该分析进一步扩展到将VSC连接到低渗透网格的情况下，从而确保在频率变化的情况下确保算法的稳健性。结果在包括网格，VSC和相关控制器的基准上进行了验证。
We consider a grid-connected voltage source converter (VSC) and address the problem of estimating the grid angle and frequency, information that is essential for an appropriate operation of the converter. We design phase-locked loop (PLL) algorithms with guaranteed stability properties, under the assumption that the grid is characterized by relatively high short-circuit-ratio (SCR) and inertia. In particular we derive, using passivity arguments, generalization of the conventional synchronous reference frame (SRF) and arctangent (ATAN) PLL, which are the standard solutions in power applications. The analysis is further extended to the case of connection of the VSC to a low-inertia grid, ensuring robustness of the algorithms in case of frequency variations. The results are validated on a benchmark including the grid, the VSC and related controllers.
