Ingeniare. Revista chilena de ingeniería
On-line version ISSN 0718-3305
USTARIZ-FARFAN, Armando Jaime; CANO-PLATA, Eduardo Antonio and TACCA, Hernán Emilio. Generalized instantaneous power theory applied to multiphase loads compensation. Ingeniare. Rev. chil. ing. [online]. 2012, vol.20, n.2, pp. 148-159. ISSN 0718-3305. http://dx.doi.org/10.4067/S0718-33052012000200002.
The use of the instantaneous reactive power theory is greater than before due to the increased interest to use active power filters to compensate the non-sinusoidal currents produced by nonlinear loads. However, this theory can only be applied to three-phase systems of three or four conductors. This paper presents a new definition of instantaneous power that can be applied to all multiphase systems. Thus, the concept of tensor product is introduced to define the instantaneous power tensor and also the current decomposition in active and reactive components regardless of the number of phases of the power system. Finally, an exhaustive analysis of practical cases has been carried out at a simulation level which verified the proposed approach.
Keywords : Tensor analysis; active power filter; instantaneous power; tensor product; multiphase systems.