HYBRID MACHINE COMPRISING A SYNCHRONOUS MOTOR AND AN ASYNCHRONOUS MOTOR
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United States of America Patent
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Issued Date -
Dec 29, 2011
app pub date -
Oct 22, 2009
filing date -
Oct 22, 2008
priority date (Note) -
Abandoned
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Abstract
A rotating electrical machine to be connected to a polyphase power grid, having: a polyphase synchronous motor including a rotor with permanent magnets and a polyphase asynchronous motor axially coupled together, and a switching system arranged so as to electrically connect the asynchronous motor to the grid during the machine starting phase in order to bring the synchronous motor to a speed that enables the motor to operate while connected directly to the grid, and to electrically connect the synchronous motor to the grid during a subsequent phase.
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