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pyPMU - Python implementation of the IEEE C37.118 synchrophasor standard

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iicsys/pypmu

pyPMU - Python Synchrophasor Module

Synchrophasor module represents implementation of IEEE C37.118.2 standard in Python. synchrophasor module is still in development phase but we have a few very interesting tools.

Notes:

- Latest Alpha release: v1.0.0-alpha
- We need some beta testers!

Getting Started

Synchrophasor module is made to be easy to install and run.

Prerequisites

You will need python3 to run module correctly. Check your Python version:

python --version

If you're using Python 2 version you can install Python 3 alongside with Python 2.

Installing

  • Install using pip for Python 3: pip3 install synchrophasor

  • You can download this project as zip file and extract it or clone it using git git clone https://github.com/iicsys/pypmu.git and then run python3 setup.py install inside project folder.

Running the tests

Right now we only have one test for frame encapsulation validation. You can check it like this:

python3 tests/validate_frames.py

If AssertionError is not shown you're good to go!

Usage - What do we have so far?

Inside examples folder you will find a few useful examples that utilize synchrophasor module.

StreamSplitter

Possible practical use of the synchrophasor module would be data-stream splitter. In case you need to send phasor measurements to multiple destinations following 4 lines of code will do it:

from synchrophasor.splitter import StreamSplitter

sp = StreamSplitter(source_ip="127.0.0.1", source_port=1410, listen_ip="127.0.0.1", listen_port=1502)
sp.run()

TinyPMU

With only few lines of code you can bring up a PMU simulator which will send constant phasor measurements to connected PDCs.

from synchrophasor.pmu import Pmu


pmu = Pmu(ip="127.0.0.1", port=1410)

pmu.set_configuration()  # This will load default PMU configuration specified in IEEE C37.118.2 - Annex D (Table D.2)
pmu.set_header()  # This will load default header message "Hello I'm tinyPMU!"

pmu.run()  # PMU starts listening for incoming connections

while True:
    if pmu.clients:  # Check if there is any connected PDCs
        pmu.send(pmu.ieee_data_sample)  # Sending sample data frame specified in IEEE C37.118.2 - Annex D (Table D.1)

pmu.join()

TinyPDC

Here's an example of a very simple PDC. tinyPDC supports only one connection to a PMU and still cannot understand measurements or configuration but with your help we can learn tinyPDC to read Data Frames and Configuration Frames

from synchrophasor.pdc import Pdc

pdc = Pdc(pdc_id=7, pmu_ip="127.0.0.1", pmu_port=1410)

pdc.run()  # Connect to PMU

header = pdc.get_header()  # Get header message from PMU
config = pdc.get_config()  # Get configuration from PMU

pdc.start()  # Request to start sending measurements

while True:
    data = pdc.get()  # Keep receiving data
    if not data:
        pdc.quit()  # Close connection
        break

Applications

If you really don't want to know what is inside of these scripts we've prepared applications for you inside apps folder.

Make them executable like this:

chmod +x splytter.py

Then you can ask for help like this and you will find usage example there:

./splytter --help

splytter

If you don't want to bother writing your own script for stream splitter you can run splytter application like this:

./splytter.py -i 10 -sip 127.0.0.1 -sp 1410 -lip 127.0.0.1 -lp 9991'

pmy

If you need a PMU simulator for a network test or something like that you can run the pmy application which will send constant data frames to all connected PDCs:

./pmy.py -i 511 -ip 127.0.0.1 -p 1995 -r 30'

We don't have it yet? :(

Since synchrophasor module is in early development phase we're missing a few very important things.

  • We don't have UDP connection supported yet but TCP looks like it's working as it should.
  • We don't have Configuration Frame 3 implemented.
  • We don't have out-of-the-box data stream aggregation for PDC.

If you feel like you could help us, with testing or developing please do not hesitate to contact us: stevan.sandi@gmail.com or tp0x45@gmail.com.

Contributing

  1. Please check TODO.md to find out where you can help us.
  2. Fork this repo.
  3. Create new branch: git checkout -b fixing-your-stupid-bug
  4. Commit changes: git commit -m 'There you go! Fixed your stupid bug.'
  5. Push changes to the branch: git push origin fixing-your-stupid-bug
  6. Submit pull request.

Credits

License

Please check LICENSE.txt.

References

  • C37.118.2-2011 - IEEE Standard for Synchrophasor Data Transfer for Power Systems, >>

Citations

If you use the pyPMU code for your research, please cite the following publication:

  • S. Sandi, T. Popovic, "pyPMU – Open Source Python Package for Synchrophasor Data Transfer", IEEE 24th Telecommunications Forum (TELFOR), Belgrade, Serbia, Nov 22-23

  • S. Sandi, T. Popovic, B. Krstajic, "Python Implementation of IEEE C37.118 Communication Protocol", Journal of Electrical Engineering, Faculty of Electrical Engineering, University, Podgorica, Montenegro, Vol. 21, No. 1, December 2015, pp 108-117

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