Avaliação do Impacto da Geração Eólica nas Interações Eletromecânicas de um SEP: uma análise baseada em dados de medição
Keywords: Small-Signal Stability, Wind Generation, Electromechanical Oscillations, Phasor Measurament Units
AbstractObtaining electrical energy from wind emerges as a solution to environmental impacts and global warming corcernments, since its environmental impact is lower when compared to other forms of energy generation. However, this new iteration presents a dynamically different behavior, making the system operation increasingly challenging. Regarding the analysis of small signal stability, it is important to identify how the increase of wind generation participation in the electrical matrix can impact on electromechanical oscillations damping ratio, which are typical of a predominantly synchronous system. For this purpose, this work evaluates the impact of increased wind penetration in the interconnected system on electromechanical oscillations from signals sampled by phasor measurement units. The Prony’s method is applied to the transient portion of the system’s response to a disturbance, allowing the assessment of the increase in wind power impact, without the need to update the mathematical model representative of the system under analysis. Simulations are performed on the 39 bus system, evaluating different load levels and wind generation participation levels. The results show that there is an increase in oscillations damping ratio as there is an increase in wind generation participation, indicating a positive impact on this interaction.