Operación óptima y análisis de estabilidad en sistemas eléctricos de potencia con un sistema.

Abstract

On path toward energy matrix transitioning, it becomes imperative to comprehensively explore the effects and implications of integrating renewable energies into the electrical power system (SEP). While hydroelectricity currently dominates the electricity generation in Ecuador, there is a noticeable uptick in the presence of renewable sources within the grids. The stochastic behaviour of primary resources (wind speed, solar radiation, temperature, etc.) foresees a fluctuating energy generation, that together with the load uncertainty nature, constitutes a novel and critical research field. Hence the necessity for a complete analysis, integrating a Hybrid Generation Power System (constituted by unconventional renewable energies - ERNC - and local loads) to the Power System. The initial stage involves modeling the Hybrid Generation Power System (SHG) alongside the IEEE 39-bus test system. Operational viability is demonstrated through power flow and optimal power flow studies, efficiency evaluation includes a comparison of loss reduction and voltage profiles improvement, accounting for the stochastic nature of generation and load patterns. In the next phase, the impact of Probabilistic Optimal Power Flow (POPF), with a SHG integrated into the power system, is scrutinized through a Transient Stability Analysis, different fault scenarios are examined, encompassing instances where the Hybrid System consumes and feeds to the main grid. This comprehensive approach yields a more realistic model, where the load uncertainties and the intermittent nature of primary resources (distributed energy resources and distributed generation), enriches our understanding of the phenomena that could occur within an electrical network during its operation.