Enhancement of islanding-detection of distributed generation systems via wavelet transform-based approaches |
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| Authors: | Cheng-Tao Hsieh Jeu-Min Lin Shyh-Jier Huang |
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| Affiliation: | aDepartment of Electrical Engineering, Kun Shan University, Tainan 70101, Taiwan;bDepartment of Electrical Engineering, Far Eat University, Tainan 70101, Taiwan;cDepartment of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan |
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| Abstract: | In this paper, a wavelet transform-based approach is proposed to detect the occurrence of islanding events in distributed generation systems. Thanks to time–frequency localization capabilities exhibited by wavelet transform, the approach embedded with this transform technique has grasped the appearance of the islanding event in a highly effective manner. Moreover, for those regions which are in need of a better visualization, the proposed approach would serve as an efficient aid such that the mains power disconnection can be better distinguished. To validate the feasibility of this approach, the method has been validated through several scenarios. Test results supported the effectiveness of the method for the application considered. |
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| Keywords: | Distributed generation systems Islanding Wavelet transform |
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