| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 96 === The islanding operation of distributed generation systems happens when the distributed generators are disconnected from the mains power such that the load is purely supplied by those connected distributed generators. Under such scenarios, if the occurred event is not informed in time, it may damage the electric power equipment and affect the safety of operation personnel. In view of this importance, the thesis has devoted to the study of islanding operation detection via the wavelet energy entropy method. It is found that by employing the proposed method, it would help quantify the waveform such that energy distribution of voltage as well as frequency is better grasped, thus assisting the forewarning of the occurrence of islanding events. To confirm the feasibility of the method, the simulated model has been tested by the proposed approach and FPGA validation. Test results help support the method for the islanding detection enhancement of distributed generation systems.
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