Generation and harmonics in interior permanent magnet wind generator
Bibliographic record
Abstract
This paper investigates the harmonics of voltages and currents of interior permanent magnet wind generators for wind energy conversion system (WECS). The generated voltages of an interior permanent magnet wind generator (IPMWG) are fed to a three-phase diode bridge rectifier in order to produce DC power. However, the use of diode bridge rectifier introduces high intensity of harmonics in the generated currents of the IPMWG. The harmonic contents of laboratory 1 kW, 5 kW, and 45 kW interior permanent magnet wind generators for wind energy system are analyzed for different rotor speed of the wind turbine. The fast Fourier transform (FFT) is used to determine the voltage and current harmonics of an IPM wind generator. The analyses have revealed that 5th, 7th, and 11thharmonics are significant in the generated currents of the IPMWG using the straight type magnet in the rotor. It is also to be noted from these analyses that both fundamental and 5thharmonics of output currents of the IPMWG vary linearly with the rotor speed of the wind turbine.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".