Abstract
Summary The simulation of squirrel-cage induction motors is very useful to design frequency-controlled a.c. drives. For this purpose the parameters of the induction motor must assume suitable values. Due to the unsatisfactory results obtained by the open and short circuit tests, it is necessary to develop a new proce dure. The problem is seen in the general framework of theparameter identification techniques based On the knowledge of the torque-speed and stator current-speed characteristics of the induction motor in a suitable range of the slip. To obtain significant results it is necessary to specify the nonlinear constraints on the parameters. The problem of parameter identification is then formulated as a constrained nonlinear minimization problem. A particular computation procedure is developed to solve this problem. A test confirms the accuracy of the parameter values obtained by the newly developed identification method.
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