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Stability Analysis of Grid-Connected Photovoltaic Systems with Dynamic Phasor Model

机译:动态相量模型的网格连接光伏系统稳定性分析

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摘要

The typical layout of power systems is experiencing significant change, due to the high penetration of renewable energy sources (RESs). The ongoing evaluation of power systems is expecting more detailed and accurate mathematical modeling approaches for RESs which are dominated by power electronics. Although modeling techniques based on state−space averaging (SSA) have traditionally been used to mathematically represent the dynamics of power systems, the performance of such a model-based system degrades under high switching frequency. The multi-frequency averaging (MFA)-based higher-index dynamic phasor modeling tool is proposed in this paper, which is entirely new and can provide better estimations of dynamics. Dynamic stability analysis is presented in this paper for the MFA-based higher-index dynamical model of single-stage single-phase (SSSP) grid-connected photovoltaic (PV) systems under different switching frequencies.
机译:由于可再生能源(RESS)的渗透率高,电力系统的典型布局正在经历显着的变化。电力系统的持续评估预计由电力电子设备主导的ROSS更详细和准确的数学建模方法。尽管传统上基于状态空间平均(SSA)的建模技术传统上用于数学地代表电力系统的动态,但是在高开关频率下这种基于模型的系统的性能降低了这种基于模型的系统。本文提出了基于多频平均(MFA)的更高索引动态相位模型工具,这完全是新的,可以提供更好的动态估计。本文提出了动态稳定性分析,用于在不同开关频率下的单级单相(SSP)网格连接光伏(PV)系统的基于MFA的高索引动态模型。

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