Switched reluctance motor with indirect position sensing and magnetic brake
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United States of America Patent
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-
Sep 7, 1999
Issued Date -
N/A
app pub date -
Jan 17, 1997
filing date -
May 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A switched reluctance motor includes an auxiliary winding interspersed among the main phase windings such that a constant inductance ratio is established between the main and auxiliary windings regardless of rotor position. The auxiliary winding preferably has a higher inductance compared to the main winding. A test current is injected into the auxiliary winding in order to indirectly determine rotor position and the auxiliary winding is utilized to maintain a holding torque under static load conditions. The disclosed design and methodology improves motor function capabilities and economies.
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