| 摘要 |
Low currents in the motor and in the invertor (25) are achieved in a switched reluctance motor having a large rotation speed range in that each phase winding (17/18, 19/20, 21/22) has a tap (53, 55, 57) located approximately in its centre, which tap (53, 55, 57) is connected on the one hand via a freewheeling semiconductor switch (65, 67, 69) to one (71) of the poles, and on the other hand via an additional switching transistor (59, 61, 63) to the other pole (73) of the DC voltage source (23). This centre tap (53, 55, 57) does not become effective until after the rotor reaches a specific rotation speed. The reluctance motor is distinguished by low losses and by more cost effective rating of the components. <IMAGE> |
