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Computation of the eigenvalues with the least damping ratios is one of the most efficient approaches to analyze the electromechanical oscillations of power systems. In this paper, an improved generalized Cayley transformation (IGCT) is proposed to search the eigenvalues with an ascending order of the damping ratios efficiently. Since the proposed IGCT preserves the sparsity of the augmented state...
This paper presents an unconditionally stable three-dimensional (3-D) finite-difference time-method (FDTD) based on the locally one-dimension (LOD-FDTD) scheme. The unconditional stability is proven theoretically and validated numerically. Numerical dispersion of the method is also derived analytically. Through the dispersion analysis and a numerical example, the proposed LOD-FDTD method is found...
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