Voltage Stability Assessment Using Synchrophasor Measurements: Trends and Development

An analysis of the state-of-the-art of voltage stability assessment using synchrophasor measurements is presented in this paper. In the analysis, it is applied a bibliographic classification methodology based on a systematic method of evaluating features. The main features of methods for voltage stability assessment are identified and an evaluation system of these features is designed depending on the methodological, functional or technological advantages; such as the ability to assess in real time and the automatic control approach. Finally, these methods are classified from the evaluation of each feature to identify advantages and limitations in voltage stability assessment using PMUs measurements. As a result of the implementation of the methodology, the trend in the development of voltage stability assessment methods is identified. In addition, the different approaches of voltage stability assessment are detected according to the type of disturbance (large or small) and the time in which the instability occurs (short term or long term).