A Novel Methodology for Adaptive Coordination of Multiple Controllers in Electrical Grids

Ruben Tapia-Olvera, Francisco Beltran-Carbajal, Antonio Valderrabano-Gonzalez and Omar Aguilar-Mejia
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Ruben Tapia-Olvera: Department of Electrical Energy, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Francisco Beltran-Carbajal: Department of Energy, Universidad Autónoma Metropolitana, Unidad Azcapotzalco, Mexico City 02200, Mexico
Antonio Valderrabano-Gonzalez: Facultad de Ingeniería, Universidad Panamericana, Álvaro del Portillo 49, Zapopan 45010, Mexico
Omar Aguilar-Mejia: School Engineering, UPAEP University, Puebla 72410, Mexico

Mathematics, 2021, vol. 9, issue 13, 1-18

Abstract: This proposal is aimed to overcome the problem that arises when diverse regulation devices and controlling strategies are involved in electric power systems regulation design. When new devices are included in electric power system after the topology and regulation goals were defined, a new design stage is generally needed to obtain the desired outputs. Moreover, if the initial design is based on a linearized model around an equilibrium point, the new conditions might degrade the whole performance of the system. Our proposal demonstrates that the power system performance can be guaranteed with one design stage when an adequate adaptive scheme is updating some critic controllers’ gains. For large-scale power systems, this feature is illustrated with the use of time domain simulations, showing the dynamic behavior of the significant variables. The transient response is enhanced in terms of maximum overshoot and settling time. This is demonstrated using the deviation between the behavior of some important variables with StatCom, but without or with PSS. A B-Spline neural networks algorithm is used to define the best controllers’ gains to efficiently attenuate low frequency oscillations when a short circuit event is presented. This strategy avoids the parameters and power system model dependency; only a dataset of typical variable measurements is required to achieve the expected behavior. The inclusion of PSS and StatCom with positive interaction, enhances the dynamic performance of the system while illustrating the ability of the strategy in adding different controllers in only one design stage.

Keywords: B-spline neural networks; adaptive power system control; coordinated multiple controllers; StatCom (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
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