| 摘要 |
A reluctance motor comprises a stator (11) with poles (1, 1'; 2, 2'; 3, 3') which are co-operating in pairs, and a rotor (12) made from soft magnetic material and having poles (13) which are disposed diametrically opposite each other in pairs. The stator poles have magnetizing windings (14, 15) which for each pair of stator poles are connectable to a DC source (18) under the control of a control device (26) in dependence on a signal from a sensor device (20) which is arranged during the movement of the rotor (12) to indicate the position of the rotor poles (13). The sensor device comprises a sensor (21) which co-operates with a disc (23) rotating with the rotor (12) and having wings (22) the number of which corresponds to the number of stator poles or to the said number multiplied by two. At start of the motor the control device (26) is arranged to connect in proper order a predetermined pair (1, 1') of stator poles to the DC source (18) and then the next pair of poles (2, 2') in the desired direction of rotation and thereafter the next following pair (3, 3') of poles in the said direction etc. |
