PRACTICAL CONSIDERATIONS IN VOLTAGE STABILITY ASSESSMENT

In recent years, much attention has been afforded the subject of volta ge stability and as a result, analysis tools and techniques have emerg ed which are suitable for application to practical system problems. Th e aim of this paper is to discuss some important issues which must be considered when assessing the voltage stability of power systems. A br ief background on the fundamentals of the phenomenon of voltage stabil ity is provided, and then the focus is shifted to the application of t he latest analysis tools and techniques. Modelling requirements and st udy methods are discussed for both dynamic analysis and steady state a nalysis approaches. Finally, a demonstration of the use of modal analy sis is presented which illustrates both the basic method, and the pote ntial for its use in designing remedial measures.