Research and Implementation of Power Measurement Method of Networks Considering Complicated Harmonic

The paper studies the power measurement methods of the operating power grids with various types of harmonics and inter-harmonics and gives a relatively complete solution， which sums up and integrates a variety of power and energy measurement methods， forming a universal power calculation theory. The simulation results show that this solution can not only achieve accurate measurement of active power and reactive power based on frequency-adaptive technology， but also obtain the power distribution of the fundamental wave and each harmonic， helping harmonic source identification， reactive power compensation， control of system parameters and improvement of power quality.