Method and apparatus for control of switched reluctance motors
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United States of America
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Jan 18, 2022
Grant Date -
Oct 3, 2019
app pub date -
Dec 11, 2017
filing date -
Dec 11, 2017
priority date (Note) -
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Abstract
A method of controlling a switched reluctance motor is disclosed herein. The motor comprises a stator carrying a plurality of phase windings and a rotor. The method comprises activating the phase windings in a sequence selected to apply torque to the rotor, wherein during a cycle of rotation of the rotor the phase windings switch between an active state in which current in the phase winding applies torque to the rotor and an inactive state; applying a voltage to a selected phase winding whilst the selected phase winding is in the inactive state to provide a flux in the selected phase winding; determining the current in the selected phase winding; determining the rotor angle based on the current and the flux; and controlling said activating based on the rotor angle.
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