Papers by Keyword: Eigenanalysis

Abstract: The main objective of this paper is to report the small signal stability analysis of Vietnam Power System which has a longitudinal network structure with the consideration of power system stabilizer (PSS) in operation to enhance the damping of inter-area oscillation by using local as well as remote feedback signals via phasor measurement unit (PMU). Both methods of frequency domain and time domain analyses are used to investigate the performance of the power system. The study results show that by proper selection of PSS installation locations and remote feedback signals, power oscillations on the tie-line will be reduced and the system stability is thus improved.

Abstract: In the present paper, singular stress field at the vertex on the interface in three-dimensional bonded joints is analyzed using BEM and eigen analysis. The order of stress singularity is determined solving an eigen equation based on FEM formulation and the stress distribution is expressed using the result of the eigen-value analysis. A relationship between the thickness of interlayer and residual thermal stresses is presented. Then, a three-dimensional intensity of singularity is determined.