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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mohammed, O.A. Abed, N.Y. Liu, S. |
| Copyright Year | 1965 |
| Abstract | This paper investigates the harmonic behavior of three phase power transformers under nonsinusoidal operations. The terminal behavior of the transformer was obtained by coupling the transformer transient finite-element (FE) model and external electric circuits. Such a technique would allow the physical representation of the nonlinear magnetization behavior of the transformer as well as the strong frequency dependence of the transformer parameters. The harmonic behavior of the transformer currents and the dc load current were analyzed using wavelet packet transform algorithm (WPT). The key findings are, uniform frequency bands resulting from WPT decomposition process of the current waveforms can be used for identification of harmonic components. The flattened input voltage distorted by 3rd harmonic component has the highest impact on the dc load current harmonics (with respect to the sinusoidal case). The peaking input voltage distorted by the 5th harmonic component has the highest impact on the transformer secondary current and the magnetizing current harmonics |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 967 |
| Ending Page | 970 |
| Page Count | 4 |
| File Size | 323285 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 42 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-04-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phase transformers Finite element methods Wavelet packets Power transformers Harmonic distortion Power system harmonics Coupling circuits Magnetization Frequency dependence Harmonic analysis wavelet packets transform FE harmonic behavior total harmonic band distortion transformer |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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