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Simulation of Islanding Detection for Photovoltaic Grid-Connected Inverters Based on Positive Feedback Intermittent Frequency Drift

机译:基于正反馈间歇频率漂移的光伏电网连接逆变器岛屿检测模拟

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Islanding detection is a absolutely necessary function for Photovoltaic Grid-Connected Inverters and it is very important to detect the islanding accurately and quickly with less adverse impact on power quality. This paper proposes a positive feedback intermittent active frequency drift method which can decrease the adverse impact of frequency disturbance effectively within the time restrict of islanding detection according to that of traditional islanding detection methods. The theoretical analysis and simulation results show that this algorithm which is simple, effective, fast and have less adverse impact on power quality and has certain application value.
机译:岛屿检测是光伏电网连接逆变器的绝对必要的功能,非常重要,可以准确地检测岛屿,并对电力质量的不利影响较小。 本文提出了正反馈间歇主动频率漂移方法,其在根据传统岛地检测方法的时间限制时有效地降低了频率干扰的不利影响。 理论分析和仿真结果表明,该算法简单,有效,快速,对电能质量的不利影响较小,具有一定的应用价值。

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