why the "power_fftscope" and FFT analysis tool in powergui give different results?
2 ビュー (過去 30 日間)
古いコメントを表示
hi
I measure the FFT of a signal name "voltage3" using powergui as shown in fig 1st. then I use the instruction "power_fftscope (voltage3)" and results are attached in fig. 2nd. but there is a huge difference in THD. Fundmentamental frequency and harmonic values. kindly help me why this difference comes.
Regards mudasir
1 件のコメント
Massimo Paglia
2017 年 7 月 3 日
Looking into the pictures it seems that you have entered a different period. You should write 60 Hz to the power_fftscope GUI in order to compare your results.
回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Spectral Measurements についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!