Method for control of a reluctance motor
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United States of America Patent
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Issued Date -
Sep 25, 2008
app pub date -
Mar 17, 2008
filing date -
Mar 22, 2007
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for control of a reluctance motor which has a rotor (1) and a stator (4), the rotor (1) having a plurality of rotor segments (3) and the stator (4) having a number of coils (6), the number of coils being dependent on the number of rotor segments, thus in particular four coils (6) in the case of two rotor segments (3), and the motor having a control unit which applies a voltage to a coil (6) of a respective phase (PH1) of the stator (4) over a specific angular sector of the movement of the rotor (1) between a switch-on time (E) and a switch-off time (A). In order to provide an improved method of the kind in question by means of which control of an advantageous reluctance motor may be achieved, it is proposed that the switch-on time (E) of a phase (PH1) is selected to be delayed, so as to be different from a geometric pitch (G) of the angular sector of each coil (6), i.e. later than corresponds to the geometric pitch (G), while the switch-off time (A) is maintained in correspondence with the geometric pitch (G).
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