MATPOWER Case Frames

Parse MATPOWER case into pandas DataFrame.

Unlike the tutorial on matpower-pip, this package supports parsing MATPOWER case using re instead of Oct2Py and Octave. After that, you can further parse the data into any format supported by your solver.

Installation

pip install matpowercaseframes

Usage

Read MATPOWER case by parsing file as string

The main utility of matpowercaseframes is to help read matpower data in user-friendly format as follows,

from matpowercaseframes import CaseFrames

case_path = 'case9.m'
cf = CaseFrames(case_path)

print(cf.gencost)

If you have matpower installed via pip install matpower (did not requires matpower[octave]), you can easily navigate matpower case using:

import os
from matpower import path_matpower # require `pip install matpower`
from matpowercaseframes import CaseFrames

case_name = 'case9.m'
case_path = os.path.join(path_matpower, 'data', case_name)
cf = CaseFrames(case_path)

print(cf.gencost)

Read MATPOWER case by running loadcase

In some cases, a case file may contain matlab code at the end of the file that needs to be executed. An example of such case is case69.m. To properly load this type of file, use the method recommended by matpower, which is using loadcase instead of parsing. To do this, use the load_case_engine parameter (requires matlab or octave), as demonstrated here:

from matpower import start_instance
from matpowercaseframes import CaseFrames

m = start_instance()

case_name = f"case69.m"
cf_lc = CaseFrames(case_name, load_case_engine=m)
cf_lc.branch  # see that the branch is already in p.u., converted by `loadcase`

Convert oct2py.io.Struct to CaseFrames

If you use matpower[octave], CaseFrames also support oct2py.io.Struct as input using:

from matpower import start_instance
from matpowercaseframes import CaseFrames

m = start_instance()

# support mpc before runpf
mpc = m.loadcase('case9', verbose=False)
cf = CaseFrames(mpc)
print(cf.gencost)

# support mpc after runpf
mpc = m.runpf(mpc, verbose=False)
cf = CaseFrames(mpc)
print(cf.gencost)

m.exit()

Convert CaseFrames to mpc

Furthermore, matpowercaseframes also support generating data that is acceptable by matpower via matpower-pip package (requires matlab or octave),

from matpowercaseframes import CaseFrames

case_path = 'case9.m'
cf = CaseFrames(case_path)
mpc = cf.to_mpc()  # identical with cf.to_dict()

m = start_instance()
m.runpf(mpc)

Add custom data

Sometimes, we want to expand matpower data containing custom field. For example, given an mpc.load as a dict, we can attach it to CaseFrames using,

from matpower import start_instance
from matpowercaseframes import CaseFrames

m = start_instance()

LOAD_COL = ["LD_ID", "LD_BUS", "LD_STATUS", "LD_PD", "LD_QD"]

mpc = m.loadcase('case9', verbose=False)
cf = CaseFrames(mpc)
cf.setattr_as_df('load', mpc.load, columns_template=LOAD_COL)

If data already in DataFrame, we can use setattr directly as follows,

from matpower import start_instance
from matpowercaseframes import CaseFrames

m = start_instance()

mpc = m.loadcase('case9', verbose=False)
cf = CaseFrames(mpc)
cf.setattr('load', df_load)

Export as xlsx

To save all DataFrame to a single xlsx file, use:

from matpowercaseframes import CaseFrames

case_path = 'case9.m'
cf = CaseFrames(case_path)

cf.to_excel('PATH/TO/DIR/case9.xlsx')

Acknowledgment

1. This repository was supported by the Faculty of Engineering, Universitas Gadjah Mada under the supervision of Mr. Sarjiya. If you use this package for your research, we would be very glad if you cited any relevant publication under Mr. Sarjiya's name as thanks (but you are not responsible for citing). You can find his publications in the Semantic Scholar or IEEE.

2. This repository is working flawlessly with matpower-pip. If you use matpower-pip, make sure to cite using the below citation:

   M. Yasirroni, Sarjiya, and L. M. Putranto, "matpower-pip: A Python Package for Easy Access to MATPOWER Power System Simulation Package," [Online]. Available: https://github.com/yasirroni/matpower-pip.

   M. Yasirroni, Sarjiya, and L. M. Putranto, "matpower-pip". Zenodo, Jun. 13, 2024. doi: 10.5281/zenodo.11626845.

   @misc{matpower-pip,
     author       = {Yasirroni, M. and Sarjiya and Putranto, L. M.},
     title        = {matpower-pip: A Python Package for Easy Access to MATPOWER Power System Simulation Package},
     year         = {2023},
     howpublished = {\url{https://github.com/yasirroni/matpower-pip}},
   }
   
   @software{yasirroni_2024_11626845,
     author       = {Yasirroni, Muhammad and
                       Sarjiya, Sarjiya and
                       Putranto, Lesnanto Multa},
     title        = {matpower-pip},
     month        = jun,
     year         = 2024,
     publisher    = {Zenodo},
     version      = {8.0.0.2.1.8},
     doi          = {10.5281/zenodo.11626845},
     url          = {\url{https://doi.org/10.5281/zenodo.11626845}},
   }

3. This package is a fork and simplification from psst MATPOWER parser, thus we greatly thank psst developers and contributors.