J.G. Calderon-Guizar (Mexico)
Load modelling, small-signal stability, electromechanical oscillations.
This paper reports on the influence of load representation on the small-signal stability of power systems. With this aim, simulations considering different representations for load modeling such as; constant impedance, constant current, constant power, induction motor and a combination of such representations were performed and the influence of load representation on the damping of the electromechanical oscillations and thus on the overall system stability was analyzed. The results obtained from the simulations indicate that using the constant impedance representation yields the lowest damping of the local modes while the constant power representation leads to the lowest damping of the inter-area modes.
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