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Islanding Detection Method of a Photovoltaic Power Generation System Based on a CMAC Neural Network

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Author(s): Kuei-Hsiang Chao | Min-Sen Yang | Chin-Pao Hung

Journal: Energies
ISSN 1996-1073

Volume: 6;
Issue: 8;
Start page: 4152;
Date: 2013;
Original page

Keywords: cerebellar model articulation controller (CMAC) | islanding phenomenon detection | photovoltaic (PV) system

ABSTRACT
This study proposes an islanding detection method for photovoltaic power generation systems based on a cerebellar model articulation controller (CMAC) neural network. First, islanding phenomenon test data were used as training samples to train the CMAC neural network. Then, a photovoltaic power generation system was tested with the islanding phenomena. Because the CMAC neural network possesses association and induction abilities and characteristics that activate similar input signals in approximate memory during training process, the CMAC only requires that the weight values of the excited memory addresses be adjusted, thereby reducing the training time. Furthermore, quantification of the input signals enhanced the detection tolerance of the proposed method. Finally, the simulative and experimental data verified the feasibility of adopting the proposed detection method for islanding phenomena.
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