Discussion of accurate measurement scheme of power factor
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Bibliographic record
Abstract
This paper proposed the accurate measurement scheme of power factor on the basis of the conventional scheme:Measurement scheme of power factor based on power frequency.The conventional measurement is not very accurate because they did not consider the effect of the harmonic wave and non periodic component on accurate measurement of factor.The proposed power factor measuring scheme based on DSP technology can make full use of the calculation function.We can use band pass filter to process the sampling series signal of voltage and current,and then we can use Fourier Filter to get the phase of the voltage and the current to get the power factor.This method can remove the influence of the non periodic component and harmonic wave on the measuring accuracy of power factor and get the power factor fully based on the power frequency.Prefix digital band filter can overcome the drawback of the hardware low band filter to get the frequency band information near power frequency.We can use Fourier filter to get voltage and current of power frequency to get power factor based on power frequency.
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Codex and Gemma teacher scores by category
| 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) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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