Reviewing Voltage Stability: A Comprehensive Classification and Evolution of Improvement Methods

Abstract

Voltage stability has become a foremost concern for researchers in recent years. Nowadays, the system always operates at its maximum limits due to the continuous increase in its load. Therefore, any disturbance or overloading can create instability or voltage collapse. Voltage stability can be classified based on disturbances and sustaining time. This paper explains the different classifications of voltage stability and presents a review analysis and benefits of numerous methodologies such as FACT devices, distribution generation (DG), and load shedding to enhance the voltage profile of the system.