A NOVEL SSR-COUNTERMEASURE THROUGH APPROPRIATE DESIGN OF THE SHAFTDYNAMIC PARAMETERS | ||||
| ERJ. Engineering Research Journal | ||||
| Article 10, Volume 23, Issue 3, July 2000, Page 147-162 PDF (823.42 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2000.71313 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| A. S. Abdel-Ghaffar1; A. H. Morsi1; A. M. Abdel-Hamid1; M. A. Elmashad2 | ||||
| 1epartment of Electrical Engineering, Faculty Engineering, El-Minoufiya University, Shebin El-kom, Egypt | ||||
| 2Senior Engineer of Advanced Power Application, NECC, Egypt | ||||
| Abstract | ||||
| hls paper presents a novel trend toward retirement of the strong oscillations which may exist if the power system is exposed to Subsynchronous Resonance(SSR) phenomenon. Since these harmful oscillations are mainly due to the oscillatory modes of the turbo-generator shaft, the idea of this trend is to suggest an approp~iate design of the shaft-parameters such that the SSR phenomenon may be fundamentally avoided. The effect of shaft parameters like the spring constant and the inertia constant on the shape and location of these oscillatory modes is extensively studied. Modal analysis, eigenvalue analysis, and nonlinear time simulation are used as tools to design a turbo-generator shak which achieve minimum oscillations. Practical constraints are raken In consideration in a way that the proposed design can be agreeably manufactured | ||||
| Keywords | ||||
| SSR; Excitation System; IEEE-SSR Benchmark model; Oscillatory modes; mode shapes; Eigenvalues; SSR countermeasures; Torsionai oscillations | ||||
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