Pis-19-01:estudio, caracterización y control de sistemas industriales interconectados analizados desde el punto de vista de la teoría de redes complejas: desarrollo de un control distribuido de frecuencia para un sistema eléctrico desde la perspectiva de sistemas interconectados.

Abstract

This work proposes, a distributed frequency control for interconnected Electrical Power Systems (EPS). As a starting point, we model generation unit based on its most characteristic elements and the interconnection between two units is modeled, taking advantage of the interconnection nature of the EPS. Using measures of local power flux deviations, local frequency deviations and a local control action it has been possible to propose and implement a decentralized control in simulation. This control manages to restore the system to its operating points without the need for a central dispatch, fulfilling the main objective of the EPS, which is to satisfy the needs of the loads. The proposed distributed control is framed within the primary and secondary frequency regulation. The distributed frequency controller is subjected to load and demand change tests, common scenarios faced by SEPs in their operation; In addition, the classic centralized control AGC (Automatic Generation Control) is used as a reference to validate the responses. From the test’s scenarios, the performance indicators ISE and TVU, are used to make a quantitative comparison of the controllers. The responses obtained with the proposed distributed controller meet the objective of resetting the frequency set point and have similar behaviors to AGC. Additionally, the IEEE 14 Bus Bar system, simulated in DigSILENT PowerFactory, is used to carry out the tests.