Control for multi-phase induction motor
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United States of America Patent
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Jan 28, 2014
Grant Date -
Feb 16, 2012
app pub date -
Aug 11, 2010
filing date -
Aug 11, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for controlling operation of a multi-phase induction motor may include transmitting a high-speed operation signal by a master computer for high-speed operation of the motor; receiving the signal by a control signal board, and in response to the signal, the control signal board may sense that the master computer is not simultaneously transmitting a low-speed operation signal, and in response to receiving the high-speed operation signal and not simultaneously receiving the low-speed operation signal, closing delta-to-wye contactors and closing contactors in a power section to transmit power to the motor for high-speed operation, whereby the motor is connected to a source of multi-phase power and operates at high-speed; and the control signal board transmitting a first feedback signal to the master computer that the motor is connected to the source of multi-phase power and is running at high speed.
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