Implementación de herramientas de análisis modal para evaluar el impacto en la estabilidad de pequeña del sistema eléctrico debido a la generación eólica: determinación de la ubicación óptima de parques eólicos considerando la estabilidad de pequeña señal del sistema eléctrico de potencia.

Abstract

The present paper determines the influence of location of grid connection point of a wind farm, considering small-signal stability of power system modeled in the specialized engineering software PowerFactory of DIgSILENT. To analyze the oscillatory stability of system under study it is necessary to consider dynamics of wind farm, in the study these dynamics are represented by an equivalent model which allows to integrate the dynamic characteristic of a set of wind turbines. A methodology is developed to establish the optimal location of wind farm connection point, considering the oscillatory stability of EPS, based on a probabilistic analysis of the damping level obtained, by means, of Modal Analysis tool for deterministic demand scenarios: maximum, average and minimum. Damping level in the analyzed system will correspond to critical oscillation modes obtained by comparing them with desired damping level for the system under study. The application of the proposed methodology was carried out in the 39-bar test system "New England" presenting good results, consequently allowing to establish the connection point of the wind farm that allows to improve the oscillatory stability of the system under study.