Identification of machine parameters in converter-fed synchronous motor drive systems

The authors present a method of identification of machine parameters. They have applied the reference model method to a linear model of a permanent magnet motor drive fed by a PWM voltage source inverter. In all cases, the Marquardt method is used for minimising the error function based on the least square criterion. The existence of good concordance between the experimental and the model output (a difference about 2% between estimated and measured values) confirm the validity of the proposed identification method