why the "power_fftscope" and FFT analysis tool in powergui give different results?
조회 수: 3 (최근 30일)
이전 댓글 표시
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
댓글 수: 1
Massimo Paglia
2017년 7월 3일
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.
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Spectral Measurements에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!