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This paper presents and compares three voltage stability constrained optimal power flow (VSC-OPF) techniques for both voltage stability improvement and power losses minimization. The techniques are based on static voltage stability indices which provide important information about the proximity of the system to voltage collapse. The first one is a new concept based on the line voltage collapse proximity...
Voltage stability improvement is a challenging issue in planning and security assessment of power systems. As modern systems are being operated under heavily stressed conditions with reduced stability margins, incorporation of voltage stability criteria in the operation of power systems began receiving great attention. This study presents a novel voltage stability constrained optimal power flow (VSC-OPF)...
Power system optimization while improving system security and performance has become a major challenge in power systems planning and operation. As modern systems are being operated under heavily stressed conditions with reduced stability margins, incorporation of voltage stability criteria in the operation of power systems has become necessary. This paper presents a novel voltage stability constrained...
SimPowerSystems (SPS) is a software package for the modeling and simulation of electric power systems in the Simulink environment. The SPS library contains models of various components used in power systems such as three-phase machines, transformers, loads, lines, etc. However, there is no library devoted to excitation systems. Therefore, it was proposed to develop a library for these systems. This...
Wide-area measurements have been proposed to coordinate generator excitations and Static Var Compensator (SVC) auxiliary controls. The wide-area coordinating controller (WACC) utilizes remote signals to compensate the interactions between SVC and generator variables, therefore it provides an additional damping of both local and inter-area oscillations. However time delays introduced by remote measurement...
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