Abstract
A power system at a given operating state and subjected to a given disturbance is voltage stable if the voltages near loads approach post-disturbance equilibrium values. by using the energy function that maps the energy variation of the system, the effect of the slow chance of the system is analyzed and thus the system’s energy level changes that the stored energy measure is an indicator of the closeness of the operating point to the instability region of the system. With constraints on data availability and for study of power system stability it is adequate to model the synchronous generator with field circuit and one equivalent damper on q-axis known as the model 1.1. This paper presents a systematic procedure for modelling and simulation of a single-machine infinite-bus power system installed with a thyristor controlled series compensator (TCSC) where the synchronous generator is represented by model 1.1, so that impact of TCSC on power system stability can be more reasonably evaluated.
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