Implementation of ROSE for real-time voltage stability analysis at WECC RC

This paper describes the implementation of Region Of Stability Existence (ROSE) software at WECC-RC´s operations centers for real-time voltage stability analysis. The software utilizes State Estimator (model) and synchorphasor (measurement) data sets for determining the power system operating margin under normal and contingency conditions. The framework presented in this paper allows for enhanced real-time situational awareness of system operators by continuously monitoring the transmission network utilizing the synchorphaor data, determining voltage stability limits using the State Estimator data, and alarming the operator if the current operating point approaches the limit. The paper discusses implementation of the ROSE application at Western Electricity Coordinating Council RC called WECC-ROSE.