DOI: https://doi.org/10.15407/publishing2017.46.050

DECREASING SHAFT SWINGS OF POWERFUL TURBOGENERATORS BY MEANS OF AN ASYNCHRONOUS DAMPING DEVICE

Yu. Kuievda, V. Kuevda, S. Baluta
National University of Food Technologies,
Volodymyrska St., 68, Kyiv, 01601, Ukraine,
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In the article an asynchronous damping device (ADD) is proposed to improve the quality of transient electromechanical processes in powerful turbogenerators. The parameters of ADD were calculated, its model in Matlab Simulink was created. The transition processes was simulated as out-of-phase closing of a no-load turbogenerator into the infinite power system and transient three-phase fault with automatic re-closing of a fully loaded turbogenerator. The article shows that ADD, damping rotor swings, significantly improves quality of transient processes, reducing the time of shaft swings and the number of critical values of mechanical torque in certain sections of the shafting. References 12, figures 5.
Key words: asynchronous machine, turbogenerator, damping rotor swings, out-of-phase closing, short circuit, automatic re-closing.

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