A New Damper Scheme to Restrict Torsional Torques on the Turbine Generator Shafts and Blades near a HVDC Link

Autor:	Jong-Ian Tsai
Rok vydání:	2006
Předmět:	Coupling Engineering Torsional vibration business.industry Applied Mathematics Turbine Damper Physics::Fluid Dynamics Vibration Electric power system Control theory Steam turbine Electrical and Electronic Engineering business Damping torque
Zdroj:	Electrical Engineering. 89:377-387
ISSN:	1432-0487 0948-7921
DOI:	10.1007/s00202-006-0015-5
Popis:	Due to more various power disturbances occurring in a power system involving a HVDC link, the turbine generator shafts and/or blades are more prone to damage than in general HVAC systems. In this paper, a new mechanical damper scheme based on participation factor approach is proposed to damp torsional torque and prolong the life of turbine mechanism. Two types of torsional damping couplings, inertia damping coupling and elastic damping coupling, are adopted and examined. The optimal type and the optimal location of the damping coupling will be identified and installed to the turbine generator shaft section. The results demonstrate that the best damper may not be installed at the location with the most onerous vibrations but provides satisfactory damping performance on shafts and blades following severe power disturbances in a HVDC link.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36a40e6f6accbb84290d9a68c59b4fa3 https://doi.org/10.1007/s00202-006-0015-5 Zobrazit plný text záznamu Full text from SpringerLink