基于奇次谐波估计的分布式电源并网孤岛检测方法

发布时间：2018-11-15 20:29

【摘要】：针对分布式发电系统中的孤岛现象,提出一种基于奇次谐波估计的分布式电源并网孤岛检测方法。首先介绍准比例谐振控制,并将模糊控制与其相结合,用于减少逆变器侧产生的谐波,然后详细阐述利用卡尔曼滤波的谐波估计方法以及孤岛判断的方法,最后通过Matlab/Simulink平台进行仿真实验。仿真结果表明,该方法检测速度较快、盲区较小,验证了实验的有效性和可行性。
[Abstract]:In order to solve the islanding phenomenon in distributed generation systems, a novel detection method based on odd-order harmonic estimation is proposed for islanding detection in grid-connected distributed generation systems. First, the quasi-proportional resonance control is introduced, and the fuzzy control is combined with it to reduce the harmonics generated by the inverter side. Then the harmonic estimation method using Kalman filter and the method of islanding judgment are described in detail. Finally, the simulation experiment is carried out on Matlab/Simulink platform. The simulation results show that the method is fast and the blind area is small. The validity and feasibility of the experiment are verified.
【作者单位】：山东科技大学电气与自动化工程学院;
【基金】：山东省中青年科学家奖励基金项目(BS2013DX012) 中国博士后科学基金(2014M551934) 山东省博士后基金(201303068)
【分类号】：TN86

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