Motor control method and system and digital signal processor thereof
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United States of America Patent
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Apr 22, 2014
Grant Date -
Aug 9, 2012
app pub date -
Jul 8, 2011
filing date -
Feb 9, 2011
priority date (Note) -
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Abstract
A digital signal processor (DSP) is operable to receive a single-phase back electromotive force signal (back-EMF) fed back from a motor and control an inverter for driving the motor based on the single-phase back-EMF signal. The DSP includes an electrical angle building module, a rotation speed control module, and a pulse width modulation control module. In addition, the DSP further includes a field-weakening compensation module. The field-weakening compensation module is operable to automatically regulate an electrical angle based on a rotation speed of the motor and a set of predetermined compensation parameters so that the DSP can be operable to achieve an adaptive control. Furthermore, a motor control system and method are disclosed herein.
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