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How to Propagate the Measurement Uncertainty of Measured Voltages, Currents and the Period to Active Power?

This white paper presents the propagation of the measurement uncertainty (MU) of measured voltages, currents and the period (in case of periodic conditions) to active power, that is calculated based on these measurands. Based on a time-continuous MU propagation, a discrete-time MU propagation based on sampled values of the measurands is derived.

 

Key Takeaways:

  • MU of Active Power
  • Time-continuous MU propagation
  • Discrete-time MU propagation