axyakshay/pypmu

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

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 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 have only 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 we have so far?

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

StreamSplitter

Possible practical use of 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 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 very simple PDC. tinyPDC supports only one connection to 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 PMU simulator for network test or something like that you can run 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 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: [email protected] or [email protected].

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

• Tomo Popovic - synchrophasor module project leader.
• Bozo Krstajic - synchrophasor module project adviser.
• Stevan Sandi - synchrophasor module project developer.

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