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- This paper presents a wide area monitoring system based method for voltage security
visualization and monitoring. The proposed approach is based on Thevenin impedance and
mobius transformation. Voltage stability boundary is constructed using real-time
measurements. (https://www.mdpi.com/1996-1073/10/8/1103)
- This is a modified Thevenin equivalent method that uses Overexcitation limiter and q-axis
emf of generator into account. This method computes the voltage stability in terms of an
index (using Thevenin parameters). It requires phasor measurements from all buses of the
system. This method modifies the Thevenin voltage based on the generator excitation current.
(http://ieeexplore.ieee.org/document/7513971/)
- This paper is one of the pioneer papers on wide area voltage stability. Two indices a
voltage stability index based on Thevenin parameters and reactive reserve index based on
monitoring of generator reactive reserves are introduced. The paper also considers the
impact of voltage dependent load models on computation of Thevenin parameters. (https://ieeexplore.ieee.org/document/1178783/)
- The authors adopt a slightly different T network based approach for determination of
Thevenin equivalent network seen from the bus. The approach is used for wide area voltage
stability monitoring application. (https://ieeexplore.ieee.org/document/5356895/)
- This paper performs further evaluation of work presented by same authors in [5] and the
approach is applied on real measurement data from Korea electric power corporation. (http://ieeexplore.ieee.org/document/5484257/)
- Authors propose a wide area voltage stability monitoring algorithm which utilizes local
phasor information at buses in the system for formulation of the Thevenin equivalent. (https://ieeexplore.ieee.org/document/4918055/)
- https://ieeexplore.ieee.org/document/5420898/
- https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8731705
