Abstract

Transient stability analysis is one of the basic analyses in the planning, design, and operation of power systems. In recent years, one form of this analysis, referred to as on-line Dynamic Security Assessment (DSA), has become increasingly popular as a real-time control center application to monitor, alert, and enhance system security by performing stability analysis using real-time captured system conditions. However, traditional transient stability analysis requires intensive numerical computations and thus usually takes long time to complete. This often makes it a challenge to complete on-line DSA in required cycling time. Improving the speed of transient stability analysis has been the focus of extensive research and development for many years. This paper describes a number of techniques and methods to improve the speed of transient stability analysis. Most of these methods have been practically used with good success to various applications, such as on-line DSA.

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