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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li Fei-fei Ye Mao-qing Yang Hong-geng Hui Jin |
| Copyright Year | 2010 |
| Description | Author affiliation: School of Electrical and Information, Sichuan University, Chengdu 610065, China (Li Fei-fei; Yang Hong-geng; Hui Jin) || Sichuan Electric Power Research Institute, Chengdu 610072, China (Ye Mao-qing) |
| Abstract | This paper proposed a new method to estimate voltage flicker using the discrete Fourier transform (DFT). Based on the specified signal processing recommendations by IEC61000-4-7, the proposed method obtains the amplitude, frequency and phase angle of each harmonic/interharmonic using the odd points interpolation correction method. According to the electric power distortion component symbiosis mechanism, the detected interharmonics in pairs are transformed into a flicker signal. Combined with the double-side property, the interharmonics in pairs can be extracted. The parameters of flicker signal are obtained by the signal transform equations. The simulation results indicate that it is easy and quick to estimate the parameters by detecting the interharmonics signal directly and estimating the flicker signal indirectly; and the odd points interpolation correction method can separate harmonics from interharmonics effectively, and strongly restrain the spectral interruption. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 703612 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781457700668 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-09-13 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Chinese Soc for Elec Eng |
| Subject Keyword | frequency domain analysis Interpolation Voltage fluctuations Frequency modulation flicker power quality Transforms Power system harmonics Harmonic analysis Frequency conversion interharmonics |
| Content Type | Text |
| Resource Type | Article |
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