Abstrakt

Vector Analysis and Equivalent Circuit of a Three-Phase Motor Stator

R.De Four, T.Wadi

Vector analysis is widely used for the analysis, modeling and control of electrical machines. The methodmakes use of vector currents, voltages and magnetic variables but does not represent them in an equivalent circuit of the machine. This paper presents the development of an equivalent circuit for an electromagnetic system consisting of scalar electrical, vector electrical and vector magnetic sections and shows the production of a vector current from its scalar counterpart that leads to the production of vector voltages on the magnetic axis of the system. Resultant current, voltage and magnetic variable vectors associated with a phase winding of a three-phase stator are also developed together with a single vector voltage equation of the system.