Optymalizacja sprawności silnika indukcyjnego z zastosowaniem kryterium minimalnego prądu stojana

Control strategy which optimized efficiency of induction motor can function using many different criteria. One of they is the criterion of minimal stator current. On the bases of laboratory tests as well as theoretical analysis it was proven that an equivalent criterion of the minimum of total losses was a criterion of the minimal stator current. Laboratory tests were conducted with using the squirrel-cage induction motor about the power PN =1,1 kW and the rotation speed nN =1415 rev/min. Control strategy of efficiency optimization which use the criterion of minimal stator current would be straightest in the technical realization. Unfortunately, time of investigation would be for minimal value of stator current enough rather long. This process would be disturbed and extended by stochastic changes of supplying parameters and stochastic changes of motor load.