Voltage stability analysis considering dynamic load model

The modeling of loads has a significant effect on the accuracy of voltage stability analysis. This paper investigates the dynamic nature of voltage instability considering the dynamic load model. It develops the system small-signal voltage stability models adopting exponential recovery load models and adaptive load models. Moreover it investigates the influence of the parameters related to the load models and of the consequent change of the operating points on the voltage stability. The differences and similarities of the two specific models are also pointed out.