Analysis on non-detection zone of the islanding detection in photovoltaic grid-connected power system
Analysis on non-detection zone of the islanding detection in photovoltaic grid-connected power system
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光伏并网电力系统孤岛检测非检测区分析
DOI：
10.1109/apap.2011.6180527
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
P. Järventausta
中科院分区：
文献类型：
--
作者：
O. Raipala;A. Makinen;S. Repo;P. Järventausta
到目前为止，光伏并网发电有了很大的发展。此外，还在对该制度存在的问题进行研究。光伏并网发电系统的孤岛运行对电能质量和公用事业设备都有不利影响，甚至影响公用事业的性能，还可能损害人们的生活。孤岛检测是并网DG的一个关键考虑因素。孤岛检测的效果不仅取决于所采用的策略，还受参数设置的影响。非检测区(NDZ)是评价孤岛探测性能的重要指标。本文将主动频率漂移和主动频率漂移正反馈的NDZ映射到两个不同的负载空间，即L×C范数空间和QF_0×C范数空间。在此基础上，给出了理论推导，并进行了仿真验证。
Until now, there is a great development in photovoltaic grid-connected power system. In addition, there is an ongoing research on the problems existed in the system. Islanding of photovoltaic grid-connected power system have adverse impact on power quality and utility equipments, affecting the performance of the utility even worse, it may damage people's lives. Islanding detection is a key consideration for grid-connected DG. The effects of islanding detection are not only subject to the strategy it employed, but also subject to the parameter setting. Non-detection zone (NDZ) is an important index to evaluate the performance of islanding detection. In this paper, the NDZs of active frequency drift and active frequency drift with positive feedback (AFDPF) are mapped into two different load space, i.e. L×Cnorm space and Qf0 × Cnorm space. Based on it, theoretical deductions are given and simulations are developed to validate the discussions.