METHOD FOR DETERMINING THE POLARITY OF A ROTOR POLE OF AN ELECTRICAL ROTATING MACHINE
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Dec 19, 2014
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Jan 7, 2014
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Abstract
A method for determining the polarity of a pole of a rotor of an electrical rotating machine, having an estimated position in relation to a stator, said method including the following steps: a) applying an excitation voltage to the stator such as to generate two different magnetic fluxes successively inside a saturable magnetic zone of the pole, one flux in conjunction with and the other in opposition to the magnetic flux of the magnets, such as to saturate the saturable magnetic zone for at least one of the magnetic fluxes; and b) determining the polarity of the pole according to the differences in the temporal evolution of the current generated in the stator by the two fluxes.
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