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National Repository of Grey Literature 1 records found  Search took 0.03 seconds. 
Cause of mechanical vibrations of Palašer synchronous motors and its removal
 Pavelka, J. ; Šimek, J. ; Kobrle, P. ; Kokeš, Petr
The paper describes the procedure and the result of analysis of mechanical vibrations of mining machines at the Palašer mine in the Russian Federation. The cause of these vibrations was the change in the magnitude of the magnetic flux in the air gap. The simulations showed the possibility of eliminating these changes in\nmagnetic flux by injecting suitable voltages into the stator windings. The implementation of this injection is further described by torque variable component feed-direct compensation. Finally, oscillography records are presented before and after injection.
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