The invention discloses a
switched reluctance motor flux linkage characteristic measurement method, which includes the following steps: a
position sensor is calibrated, and the coefficient of a measuring circuit is determined; a load is removed, a
switched reluctance motor is operated, and the switching angle is adjusted, so that the phase current of the motor is similar to the shape of a flat-topped wave; the direct-
current voltage is decreased, so that the
peak value of the phase current is as small as possible, and a
data matrix is sampled and stored; the direct-
current voltage is increased, so that the
peak value of the phase current is slowly increased; the load is added, the turn-on angle or the turn-off angle is changed, a needed
data set is detected, and the data are sampled and stored; and the
peak value of the current is gradually increased until reaching the upper limit of the current allowed by the motor, and data vectors are recorded under different currents until the
maximum phase current reaches a maximum current imax needing a current peak value. The whole process of the method only uses the conventional
switched reluctance motor speed regulation
system and the conventional
storage type digital
oscilloscope, and does not need a specialized mechanical rotor positioning and clamping device, and the
measuring equipment can be easily obtained.