Abstract
This paper presents a calculation method of the three-phase networks powers using space phasors representation of the three-phase voltages and currents. Extending space phasor theorv (used in the electrical machines study) to the calculation of the three-phase networks powers, the expressions of these powers in a quadrature two-axis components are obtained. This offers the possibility to implement some power monitoring systems, relatively simple, and of high accuracy.
Cuvinte cheie
space phasor
instantaneous power
active power
reactive power.