Appeal No. 1998-2601
Application 08/809,052
1. A polyphase (N phase: N being a positive integer
greater than or equal to 3) reluctance motor comprising:
a rotor formed of a soft magnetic substance which is
provided with n units of salient poles (n being a positive
integer greater than or equal to 2) of the same width and the
same interval in a circumferential direction thereof;
a stator having m x n (m is an integer greater than or
equal to 3) units of magnetic poles which are formed by
winding an armature coil around each two adjacent slots out of
m x n units of slots formed at equal intervals in a
circumferential direction thereof, said armature coils being
connected to constitute a first-phase armature coil, a second
phase armature coil, a third-phase armature coil, through an
Nth-phase armature coil;
means for rotatably supporting said rotor with respect
to said stator armature so that said salient poles of said
rotor and said magnetic poles of said stator confront each
other through a slight gap;
position detecting units for detecting a rotational
position of each salient pole of said rotor, and outputting
first-phase, second-phase, third-phase, through Nth-phase
position detection signals of the same width, which are
successively delayed by a predetermined period;
semiconductor switching elements connected in series
to each of said first-phase armature coil, second armature
coil, third-phase armature coil, through Nth-phase armature
coil;
a DC power source which supplied power to each of said
phase armature coils through said semiconductor switching
elements connected in series therewith; and
a power-supply control circuit for controlling the
activation of said semiconductor switching elements according
to said first-phase, second phase, third-phase, through time
2
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