In the paper stator faults are analyzed by means of a procedure based on the space-vector theory. The used approach, due to Stepina, allows to consider separately each conductor of every single slot and therefore to take easily into account the winding dissymmetry. The interactions among the different harmonic fields are studied by starting from the topological structure of windings and the harmonic analysis of the currents and of torque is carried out. The method is tested to numerical computations of steady-state currents for an induction machine with different positions of stator short-circuits. Finally the procedure is validated by using an experimental squirrel cage machine, having stator windings constructed so as to realize different short-circuits.

HARMONIC-ANALYSIS OF INDUCTION-MOTORS WITH STATOR FAULTS

ROTONDALE, Nicola;
1994

Abstract

In the paper stator faults are analyzed by means of a procedure based on the space-vector theory. The used approach, due to Stepina, allows to consider separately each conductor of every single slot and therefore to take easily into account the winding dissymmetry. The interactions among the different harmonic fields are studied by starting from the topological structure of windings and the harmonic analysis of the currents and of torque is carried out. The method is tested to numerical computations of steady-state currents for an induction machine with different positions of stator short-circuits. Finally the procedure is validated by using an experimental squirrel cage machine, having stator windings constructed so as to realize different short-circuits.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/18456
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