Method and assembly for operating synchronous motors
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United States of America Patent
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Jun 28, 2016
Grant Date -
Oct 23, 2014
app pub date -
Nov 2, 2012
filing date -
Nov 7, 2011
priority date (Note) -
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Abstract
A method is disclosed for operating a synchronous machine by way of a three-phase AC power controller, which is connected to a three-phase network. The embodiment of the method includes determining the phase difference between the magnet-wheel voltage of the synchronous machine and the network voltage of the three-phase network; determining the rotational speed of the rotor of the synchronous machine; determining the phase position of the three-phase network; determining a decision characteristic number on the basis of a stored data table calculated in advance, which data table associates a decision characteristic number with value triples of phase difference, phase position, and rotational speed; and determining at least one switching time point on the basis of the decision characteristic number.
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