Virtual Instrumentation Applied to Calculation of Electrical Power Quantities in Single-Phase Systems

This paper presents a low cost virtual instrumentation platform. It is used in single-phase systems in order to calculate electric power quantities and indicators defined in IEEE Std. 1459-2010. The algorithm used to calculate the power quantities and indicators are based on synchronous reference frame, which is used to implement the definitions presented in IEEE Std. 1459-2010 under sinusoidal and nonsinusoidal utility conditions. To confirm the theoretical development, experimental results are presented by means of a versatile power monitoring system using a graphic platform, in which the apparent, active and nonactive powers can be viewed and analyzed, as well as the indicators.

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