Improving static techniques for the analysis of voltage stability

Intrinsic geometric analysis of the network reliability and voltage stability

“…Previous studies show that since available dynamic models are computationally expensive thus static techniques were suggested [25]. With increasing complexity in the power system operational structure under restructured environment [26], the available linear and static methods yield a slow convergence (even non-convergence, as well).…”

“…In addition, there are myriads of methodologies and mathematical models for the selection of network parameters and compensation in the power system planning and operations, e.g., optimization techniques, genetic algorithm (GA), trial and error methodologies, fuzzy integrated with dynamic programming, artificial neural network (ANN) and heuristic analysis [3,[6][7][8]10,11,16,[22][23][24][25][27][28][29][30] which have been in use in the most of the existing software's [31,32]. It is worth emphasizing that the precise estimation of the transmission line parameters and associated compensation could hinder an occurrence of blackout in the power system with an increasing efficiency.…”

“…Up to the linear approximation, the prior solutions based on static modeling give a set of premature prominent results [25]. This stipulates the need for an incorporation of the underlying non-linear effects.…”

Steady state voltage stability with AVR voltage constraints

“…Dynamic evaluation of voltage stability is complex, expensive, time consuming, and do not readily provide sensitivity information and the degree of stability [5]. On the other hand, traditional methods of static voltage stability analysis like, P-V curve, Q-V curve, minimum eigenvalue/singular value, right eigenvector, family of test functions, tangent vector, reduced Jacobian, sensitivity analysis, and energy based methods [6][7][8][9][10][11][12][13], rely on power flow models.…”

TCSC Incorporated Voltage Stability Assessment under Contingency Condition

“… Line or generator outages. In defiance of voltage instability phenomenon is progressive in nature, both static and dynamic analysis methods [4] are used. To operate the system safely, system is to be analyzed for various operating conditions and contingencies.…”