Small signal stability analysis: experiences, achievements, and challenges

This paper presents an overview on the recent trend of small-signal stability analysis of power systems, focusing mainly on the experience, applications and achievements, and the challenges facing the power industry in this area. Issues discussed include experiences and lessons learnt from real-life incidents, modelling and study requirements, analysis tools available and their performances, and the possible future developments. The paper shows the importance of addressing small signal stability of power systems in all stages of planning and operation, as well as the viability of analysing and mitigating these problems with the advanced tools available to the industry today.