Coupled Single Port Network Based

1. This paper is based on the concept of coupled single port network. The paper presents a cubic spline based approach for estimation of Thevenin parameters and uses them to compute loading margin. The paper also presents a novel approach for consideration of reactive power limits, which provide operator with important information regarding critical generators. (https://ieeexplore.ieee.org/document/7284716)
2. This paper highlights the issues with Thevenin based equivalent for wide area voltage stability monitoring of multi-load power systems. Authors propose a new approach called “Coupled single port equivalent” which retains the impact of multiple loads in the system. Impedance match theorem is then applied on the obtained 2 port equivalent. (https://ieeexplore.ieee.org/document/5875916)
3. This paper builds on the theory of coupled single port network concept and presents a modified approach. The proposed modified approach is able to deal with underestimations of system parameters and enhance the accuracy of reported voltage stability margin. (https://ieeexplore.ieee.org/document/6632943)
4. This paper builds on the theory of coupled single port network concept and presents a modified approach. The proposed new approach deals with underestimation of 2 port network parameters. Modified ward equivalent is utilized to deal with the underestimations. (http://ieeexplore.ieee.org/document/6672811/)