Improvement of Power Flow Analysis based on Currents' Physical Component (CPC) Theory

The Currents' Physical Component (CPC) theory defines powers associated with distinctive physical phenomena and provides fundamentals for a design of reactive power compensators in single-phase and three-phase three-wire power systems under non-sinusoidal conditions. This paper presents an improvement of power flow analysis based on CPC theory for single-phase system. This improvement shows how the amplitudes of the individual inputs of instantaneous power influence through different weights in the apparent power formulation. The analysis also shows how crucial it is to define the intrinsic power, that is, the instantaneous power oscillation that does not contribute to the increase in apparent power in order to correctly evaluate the remaining instantaneous power inputs.