Method for determining the position of a rotor of a polyphase motor
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United States of America Patent
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Apr 28, 2020
Grant Date -
Sep 24, 2015
app pub date -
Aug 4, 2014
filing date -
Mar 24, 2014
priority date (Note) -
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Abstract
The present disclosure relates to a method for determining the position of a rotor of a polyphase motor, e.g., the rotor angle, particularly at standstill. The method can include: applying voltage to phases of the motor, measuring a current in the phases, and determining the rotor position based on the measured current. According to the present disclosure, determination of the rotor position can be based on current values measured during a period where zero voltage is applied to the respective phases.
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