Dear All,
I'm trying to write a program which is capable to make frequency- and power analysis, (with cos fi calculation) ,parallel to save the data (voltage and current data downsampled to avoid big files) in one file with real time stamp (for 3 phase system) and to sense speed (this part is still missing from the program). My problems are the following:
- the harmonic distortion analyzer gives me results only after a special sample number - as I realized the number of the included samples depends on the frequencies and I can not handle the varying results (in time) together with the original waveform. Any idea to solve it?
- now the program gives number results only in highlight mode and #NV result in normal mode (I know that I have problem with timing. But where?)
I tried to write the program in producer/consumer pattern to achieve high sampling rate because of the frequency analysis and to save only downsampled data. The origin of the downsampling algorithm is https://decibel.ni.com/content/docs/DOC-11784 . I use 3rd party DAQ device, I do not know is it important or not. As you see I am rally new in Labview (only little experience) and really confused with this problem. The vis (with 2 subvi) are attached. Thank you for your help!
oregharcos
(I could only upload in zip)