how to simulate arbitrary data which is fed to pypmu?

[Tibalt]

Hi,
Or how do I feed arbitrary data to pypmu to send out in 32.118?

Thanks.

Regards
Tibalt

[sstevan]

Hello @Tibalt,

Please check randomPMU.py script inside examples folder.

pmu.send_data(phasors=[(random.uniform(215.0, 240.0), random.uniform(-0.1, 0.3)),
                                   (random.uniform(215.0, 240.0), random.uniform(1.9, 2.2)),
                                   (random.uniform(215.0, 240.0), random.uniform(3.0, 3.14))],
                          analog=[9.91],
                          digital=[0x0001])

Method send_data will pack custom phasor values into data frame. Eg.

pmu.send_data(phasors=[(220.0, 0.01), (221.5, 1.9), (219.0, 3.12)],
                          analog=[9.91],
                          digital=[0x0001])

Where the first element of the tuple (220.0, 0.01) represents the magnitude and the second one represents the angle of the phasor.

[Tibalt]

Hello @sstevan

Thanks for the quick response!
I found randomPMU.py yesterday and verified it with PMU connection tester from GridProtectionAlliance.
Briefly went through the code and the protocol is separated from communication which make each part easy to understand. Good job.

Since it is in python, I wonder do you have any experience running it in embedded environment? If there is, what hardware is it?

Thanks!

Regards,
Tibalt

[sstevan]

We have not tried to run it on embedded hardware, but you should be able to run it if you have Python 3 on it. Performance depends mostly on data reporting rate.