Simplified Experimental Estimation of Equivalent Circuit Parameters for Brushless Doubly Fed Machines

This paper presents a new and simplified method for estimating the equivalent circuit parameters of the Brushless Doubly Fed Machine (BDFM) using only stator terminal measurements. The proposed method utilises voltage, current, and power factor measurements to estimate the stator and rotor parameters of the BDFM. The stator winding resistances are determined through DC measurements and treated as fixed parameters during the estimation process. The accuracy of the estimated parameters is compared with those obtained from alternative parameter estimation methods for an experimental D180 BDFM to evaluate its accuracy.