power quality parameters and measurements

[aryann]

hi friends....

can any one help me with the coding of voltage sag and swell in labview 8.0? Thefigures are attached below.

[Shreyas]

 Hi,

      I have attached the screenshot of a VI for Voltage Sag. You can similarly build it urself for Swell.

Hope that helps.

[aryann]

hi friends.....

The screen shot posted to me is not helping me with the corect output.

For better viewing i have attached another figure of voltage sag above.Please help me out.

                                                                                                                        Regards,

                                                                                                                        Prithwi

[Shreyas]

I have mentioned in the block diagram you have to define your own sag function to generate the required sag output. Make the changes in the code and you should get the desired output!!! 

[Henrik_Volkers]

Sorry, is this a homework?

Apply the factors with a smoth ramp (my fav: wiki: mollifier) at the correct phase and your done.

Message Edited by Henrik Volkers on 09-08-2009 09:13 AM

[aryann]

hi shreyas,

Will definitely try to work out your suggestion.Thanks for your help.

                                                                                                        Regards,

                                                                                                        Prithwi

[dinesh282]

Hi,

      am a new to labview my project is power quality monitoring using labview.so i want to find swell,sag and other disturbances.and also i want to find duration of swell and sag. i tried this coding but i want to tried in real time using scxi chasis.but in ur simulate signal is not there.can you give me any idea about the generation of swell,sag and other disturbances.if u have any example coding related to this in the sense just posted here.its very helpful for me 

[gcian]

I am seeing your discussion today, think so you can help me in my project
I am also working on "real time power quality monitoring using labview" 
any one who can help me to sort it out, as I just started work on labview
I don't know
regards

[ijaz]

Hi gcian,

I am also working on the same problem. Let me know if you are still interested so that we can start working on together.