METHOD OF CONTROLLING AN AC MACHINE AND CONTROLLER FOR CONTROLLING AN AC MACHINE
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United States of America Patent
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Issued Date -
Jul 24, 2014
app pub date -
Jan 22, 2014
filing date -
Jan 24, 2013
priority date (Note) -
Abandoned
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Abstract
A method of controlling an AC machine that includes a stator and a rotor. The method includes observing a stability parameter that is indicative of the stability of the AC machine and dependent on a current state of the AC machine; and controlling the AC machine based on the observed stability parameter so as to promote stable operation of the AC machine. The method may include controlling the AC machine to operate as a motor or as a generator. The AC machine may be a permanent magnet synchronous machine. A controller suitable for performing the method is also disclosed.
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