New Notions Suggested to Power Theory Development Part 1: Analytical Derivation

摘要

A new approach is introduced to facilitate the dealing with power theory. The authors have been inspired this approach from the concept of "instantaneous power". This term has been defined for convenience in representing the energy content of a system, since it satisfies the law of "conservation of energy". By this new approach we have analytically introduced formulas that determine precisely proper instantaneous power components in ac power systems under sinusoidal and non-sinusoidal conditions.