| 摘要 |
At the rotor of a synchronous linear stator motor, a stray flux measuring device (3', 3'') measures the angle theta of the stator current distribution phi and a speed-measuring device (4) measures a speed containing faults. At the stator, an angle theta * for the impressed stator current distribution is taken off and the difference of the two angles ( theta *- theta ) indicating the stator current distribution is added as a correction signal to the speed (adder 5), from which the pole position (R) is determined by integration. If the pole position R is used to control the frequency of the stator current thereby, a control loop for the angle difference theta *- theta is produced which regulates the measured pole position R to the actual pole position. |
