Jl. Willems, CRITICAL ANALYSIS OF THE CONCEPTS OF INSTANTANEOUS POWER CURRENT AND OF ACTIVE CURRENT, European transactions on electrical power, 8(4), 1998, pp. 271-274
This note deals with the relationship between various definitions of i
nstantaneous power currents. From a general framework the m-phase and
the (m + 1)-conductor approaches are derived as well as the case of un
equal conductor resistances. The relationship between instantaneous, s
inusoidal and time-varying situations is also discussed.