API

State Estimation API

Communication settings

Probably nothing needed here, since all the communication settings should be in the back-end and not configured by the user

Electrical grid data

Possible options for the user to load the grid data:

• Load CIM file
• Load pypower format file (format still to be checked and integrated in our SE code)

Measurement configuration

Format to be decided, but what is needed is:

• Info about type of measurement (voltage, power, current, PMU voltage, PMU current - maybe a string to be selected?)
• Measurement placement (which node or branch - maybe a string with bus or branch ID)
• Measurement uncertainty (numerical value of % uncertainty)

State Estimator selection

Drop down menu with list of available estimators (at the beginning they will all be single-phase estimators)

• Weighted Least Squares
• Weighted Least Absolute Value (not available yet)
• Kalman filter-based (not available yet)
• AI-based estimator (not available yet)
• Default (WLS)

SE output selection

Possible list of outputs that the user could select:

• Estimated quantities
  • Bus voltage (array of values - magnitude and phase angle)
  • Branch current (array of values - magnitude and phase angle)
  • Bus current injection (array of values - magnitude and phase angle)
  • Branch power (array of complex values)
  • Bus power injection (array of complex values)
• Uncertainty of the estimates (array of values)
• Number of iterations for convergence (integer value)