3.5.3 Energy/Quadergy

Energy and quadergy over the integration period can be calculated from the metrology output registers:

Where, x = [A, B, C] and:

  • fs=4000Hz is the output integration sample rate
  • P_x is active power of all harmonics of phase x
  • Q_x is reactive power of all harmonics
  • P_xF is active power of fundamental harmonic
  • Q_xF is reactive power of fundamental harmonic
  • ACC_P_x is the accumulated active power quantity for all harmonics
  • ACC_Q_x is the accumulated reactive power quantity for all harmonics
  • ACC_P_x_F is the accumulated active power quantity for fundamental harmonic
  • ACC_Q_x_F is the accumulated reactive power quantity for fundamental harmonic