Moreira, A. C.Deckmann, S. M.Marafão, F. P. [UNESP]De Lima, E. G.Bini, M. A.2014-05-272014-05-272005-12-01PESC Record - IEEE Annual Power Electronics Specialists Conference, v. 2005, p. 1712-1718.0275-9306http://hdl.handle.net/11449/68540This paper discusses the utilization of Virtual Instrumentation to the implementation and evaluation of different power definitions, so that classical formulations and new definitions can be compared without the necessity of acquiring different power meters or analyzers. Accordingly, the definitions of IEEE Standard 1459-2000 for the measurement of power quantities under distorted and unbalanced situations, have been digitally implemented. Thus, several power and power factor components related to the decomposition of the measured voltage and current signals have been obtained. The proposed PC-based Virtual Instrument uses a high performance acquisition board and isolated sensors and transducers. All digital algorithms and routines have been implemented by means of a graphical development system. Regarding to the implementation of STD 1459, this paper also proposes several different algorithms to the required decompositions of voltage, current and power components. © 2005 IEEE.1712-1718engDigital algorithmsGraphical development systemElectric currentsElectric power utilizationElectric variables measurementPower electronicsSignal processingStandardizationTrabalho apresentado em evento10.1109/PESC.2005.1581861Acesso aberto2-s2.0-33847755412