The Cause of Mechanical Vibration of Palasher Synchronous Motors and its Removal.

0519114 - ÚT 2020 RIV CZ eng J - Článek v odborném periodiku
Pavelka, J. - Šimek, J. - Kobrle, P. - Kokeš, Petr
The Cause of Mechanical Vibration of Palasher Synchronous Motors and its Removal.
Transactions on Electrical Engineering. Roč. 8, č. 4 (2019), s. 68-73. E-ISSN 1805-3386
Zdroj financování: N - neveřejné zdroje
Klíčová slova: mining machine * synchronous machine * indirect frequency converter * Maxwell’s force * resonant frequency * feedforward compensation * voltage injection
Obor OECD: Electrical and electronic engineering
Způsob publikování: Open access
http://www.transoneleng.org/2019/20194.pdf

The paper describes the procedure and the result of the analysis of mechanical vibrations of mining machines at the Palasher 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 magnetic 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.
Trvalý link: http://hdl.handle.net/11104/0305027